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Spark Plug Replacement DIY (the ULTIMATE Guide)
1 00:00:00,30 --> 00:00:02,620 Hey guys ChrisFix here 2 00:00:02,620 --> 00:00:06,420 and today I'm going to show you how to replace your spark plugs and your wires in your car or 3 00:00:06,490 --> 00:00:10,630 In your truck and this video is going to cover all the essentials 4 00:00:10,630 --> 00:00:14,370 Like how do you know when you need to replace your spark plugs? What's the best spark plug for your engine? 5 00:00:14,370 --> 00:00:20,619 What's the correct spark plug for your engine how to properly gap your spark plug. Also I have a bunch of different gapping tools 6 00:00:20,619 --> 00:00:20,199 I'm going to show you 7 00:00:20,199 --> 00:00:26,98 What tools you need and then I have a bunch of tips and tricks on the proper way to easily remove your spark plugs and wires 8 00:00:26,99 --> 00:00:29,69 And then install them like when do you use anti-seize? 9 00:00:29,70 --> 00:00:33,389 Do you use anti-seize? And where to use dielectric grease. That way after watching this video 10 00:00:33,399 --> 00:00:36,269 You'll be able to replace your spark plugs and wires at home 11 00:00:36,270 --> 00:00:39,59 You're gonna save money and get your car running in tip-top shape 12 00:00:39,390 --> 00:00:44,680 And if you're someone who's just starting out fixing cars, this is the perfect job for beginners 13 00:00:44,680 --> 00:00:48,789 It's relatively simple to do and there aren't many tools that you need. I mean check this out 14 00:00:48,789 --> 00:00:51,789 All you're gonna need is a ratchet a spark plug socket 15 00:00:51,190 --> 00:00:57,329 Maybe a couple of extensions and if you have hard to reach spark plugs a universal joint extension like this is super helpful 16 00:00:57,329 --> 00:01:00,819 That's the trick to get those out and I'm going to show you how to use that 17 00:01:00,820 --> 00:01:05,129 You're also going to need a gapping tool to make sure the gap on your spark plug is correct and while you don't need it 18 00:01:05,129 --> 00:01:11,368 It's super helpful to remove spark plug wires these ring nose pliers work great to remove them and make it really easy now 19 00:01:11,369 --> 00:01:14,339 Those are all the tools you're going to need here are all the products you're going to need 20 00:01:14,340 --> 00:01:17,159 So you're going to need a set of spark plugs for your engine. In this case 21 00:01:17,159 --> 00:01:19,110 I have a v8 so I have eight spark plugs 22 00:01:19,110 --> 00:01:25,749 And I'm also going to be replacing the wires because the wires in my car are the originals plus we're already doing the spark plugs 23 00:01:25,750 --> 00:01:29,279 We're gonna have to take the wires off anyway, might as well replace them very simple to do now 24 00:01:29,280 --> 00:01:31,570 You might need antiseize 25 00:01:31,570 --> 00:01:35,799 So that's good to have and you're gonna need some dielectric grease but those are all the products you need 26 00:01:35,799 --> 00:01:37,959 So there's not a lot of tools or products at all 27 00:01:37,960 --> 00:01:41,769 And I do want to thank Advance Auto Parts for supporting the video and helping out 28 00:01:41,770 --> 00:01:45,450 They hooked me up with all these spark plugs all the wires and also these spark plugs over here so I could show you guys 29 00:01:46,610 --> 00:01:49,499 copper plugs versus platinum plugs versus iridium plugs the differences and 30 00:01:50,720 --> 00:01:53,369 They gave me this really cool cutaway so I could show you how a spark plug works 31 00:01:53,369 --> 00:01:56,679 So thanks for all that. And with that said let's get started 32 00:01:56,680 --> 00:01:59,339 And the first thing you're gonna want to know is how do you know when to replace your spark plugs? 33 00:01:59,340 --> 00:02:05,280 so a spark plug gets its name because it literally creates a spark that jumps from the center electrode to the ground electrode and this 34 00:02:05,280 --> 00:02:09,849 Happens inside the cylinder which ignites the fuel and forces the piston down 35 00:02:09,849 --> 00:02:13,779 So it's a pretty important part to get the car to run properly now bad spark plugs 36 00:02:13,780 --> 00:02:14,830 Don't project a spark 37 00:02:14,830 --> 00:02:19,899 as hot and might not even spark every time that they're supposed to and that could cause your car to misfire or 38 00:02:19,180 --> 00:02:24,639 Hesitate especially under a load while it's idling, it might idle rough or if it's real bad 39 00:02:24,640 --> 00:02:27,580 You could even get a check engine light. Now I want you to listen to my car 40 00:02:27,580 --> 00:02:29,830 This is a good example of bad spark plugs and wires 41 00:02:30,650 --> 00:02:32,70 You can hear it's not idling right and when you give it gas 42 00:02:35,260 --> 00:02:36,310 There's a lot of vibration 43 00:02:36,310 --> 00:02:41,280 And it's just not running right. You can feel there's a lack of power and my fuel economy has dropped significantly 44 00:02:42,650 --> 00:02:45,179 Those are all indications that it needs new spark plugs and wires 45 00:02:46,760 --> 00:02:53,739 Now your goal should be to replace these spark plugs at the proper interval before these problems happen because the money that I spent on 46 00:02:53,740 --> 00:02:56,459 The bad fuel economy, I could have easily paid for brand new spark plugs 47 00:02:56,459 --> 00:02:59,709 So it only makes sense to do some preventative maintenance 48 00:02:59,10 --> 00:03:04,569 Now what interval should you change your spark plugs at? Well every engine and every car is different 49 00:03:04,570 --> 00:03:09,119 So the easiest way to figure it out is go to your owner's manual flip to the page about the service intervals 50 00:03:09,120 --> 00:03:13,320 You can see right here. Every 60,000 miles, You want to replace your spark plugs 51 00:03:13,320 --> 00:03:16,169 So that's one example another example with my del Sol 52 00:03:16,170 --> 00:03:21,209 Here's the owner's manual we'll flip to the part that talks about the spark plugs, and you can see right there 53 00:03:21,209 --> 00:03:24,879 It says replace the spark plugs every 30,000 miles 54 00:03:24,70 --> 00:03:27,480 So that is when you should replace your spark plugs go by the owner's manual 55 00:03:27,480 --> 00:03:31,689 It makes it really simple but let's just say like in this case 56 00:03:31,690 --> 00:03:34,469 And in this case, you haven't owned the car since brand new. You don't know the service history 57 00:03:34,470 --> 00:03:37,510 How many miles are on the plugs? You have no clue 58 00:03:37,510 --> 00:03:40,439 Well another way to figure out if you need to replace the spark plugs is to do a visual inspection 59 00:03:41,19 --> 00:03:46,79 So I removed the spark plug for my Mustang and the first thing we're gonna look at is the end of the spark plug here 60 00:03:46,80 --> 00:03:48,300 At the terminal nut. You just want to make sure it's not rusty 61 00:03:48,300 --> 00:03:53,489 if it is you could always sand it down also check the inside of the spark plug wire that covers this because odds are that's 62 00:03:53,489 --> 00:03:59,399 Rusty - but rust is gonna create a bad connection that could cause your misfire if that looks good the next thing to look at 63 00:03:59,400 --> 00:04:05,400 Is the ceramic insulator and you can see what the spark plug cut away the ceramic insulator runs the entire length of the spark plug 64 00:04:06,890 --> 00:04:07,300 insulating the center electrode 65 00:04:07,300 --> 00:04:10,169 From the ground electrode so that it sparks right at the end 66 00:04:10,170 --> 00:04:16,140 If you get a crack in this ceramic the spark could jump from here to here and not spark where it needs the spark 67 00:04:16,140 --> 00:04:18,299 So it won't ignite the fuel and you'll get a misfire 68 00:04:18,299 --> 00:04:22,409 So you're gonna want to inspect the ceramic make sure there's no cracks and right away. I can see right there 69 00:04:22,410 --> 00:04:25,260 There is a crack so that's probably why we had the misfire 70 00:04:25,260 --> 00:04:29,459 You can't fix this you're gonna have to replace the spark plugs if you find a cracked spark plug 71 00:04:29,460 --> 00:04:31,380 But let's just say this ceramic was good 72 00:04:31,380 --> 00:04:37,630 the next thing that you're gonna want to inspect is the ceramic right at the tip and make sure there's no chips or cracks and 73 00:04:37,630 --> 00:04:41,679 That looks good. Next we want to inspect for deposits on the electrode. This looks pretty clean 74 00:04:41,680 --> 00:04:43,470 But here's a good example of an electrode that is dirty 75 00:04:43,470 --> 00:04:49,929 You can see the deposits right there thick deposits like that would prevent the spark from sparking and it could cause a misfire 76 00:04:49,210 --> 00:04:55,570 so if you see that you want to replace your plugs and while you can try to clean off some of those deposits there is 77 00:04:55,570 --> 00:04:59,70 A risk of damaging the platinum electrode so you're better off replacing the plug with a new one 78 00:04:59,70 --> 00:05:03,239 You also want to inspect those electrodes and make sure they're not wearing away. The center electrode looks good 79 00:05:03,240 --> 00:05:07,49 But if we look at that side electrode here that is definitely eroding away 80 00:05:07,50 --> 00:05:12,450 This is typically the reason why your spark plugs have to get changed because of the erosion and just to give you an idea 81 00:05:12,450 --> 00:05:15,420 Here's a new plug and you can see the difference between the ground electrode 82 00:05:15,490 --> 00:05:20,400 Between the new and the old also the gap is correct on the new plug look at how much wider to the gap is on 83 00:05:20,400 --> 00:05:23,919 The old plug if you see the gap opened up like that 84 00:05:23,130 --> 00:05:25,439 The plug is wearing out and it's time to replace it 85 00:05:25,440 --> 00:05:30,419 And one other thing I want to mention you could see the brown staining right around the edge of the ceramic here 86 00:05:30,419 --> 00:05:33,759 This is called Corona staining. Do not worry about it 87 00:05:33,760 --> 00:05:36,999 If you see that that has no effect on the condition of the spark plug 88 00:05:36,250 --> 00:05:41,70 Also, I want to show you guys what a spark plug that is used but good looks like, in this case 89 00:05:41,70 --> 00:05:44,709 This is from the del Sol. You can see there's no cracks or anything 90 00:05:44,40 --> 00:05:48,209 There's no deposits on the electrodes and the electrodes are gapped properly and not worn away 91 00:05:48,210 --> 00:05:50,210 So that is a good used plug 92 00:05:50,260 --> 00:05:56,830 So that is how you visually inspect a spark plug to see if it needs to be replaced in this case with the broken 93 00:05:56,960 --> 00:06:00,90 Ceramic and the worn-out ground electrode, we definitely need to replace our spark plugs 94 00:06:00,280 --> 00:06:01,780 also 95 00:06:01,780 --> 00:06:06,880 some of the spark plugs have a lot of rust around the hexagon which is not good because that could get it stuck inside the 96 00:06:06,880 --> 00:06:08,710 Engine, so we need to replace the spark plugs 97 00:06:08,710 --> 00:06:12,910 Now that brings me to the next question which is: There are so many spark plugs out there 98 00:06:12,950 --> 00:06:15,560 Which one is right for your engine? 99 00:06:15,560 --> 00:06:20,250 Now there are four main types of spark plugs and in general each spark plug has the same type of internals 100 00:06:20,310 --> 00:06:26,619 It has a nice copper core but where each one is different is at the tip where the spark happens. First 101 00:06:26,620 --> 00:06:31,440 We have our basic copper plug which is typically the least expensive plug. This has a copper tip and copper works 102 00:06:31,440 --> 00:06:36,119 Well because it's very conductive so you get a nice strong spark, but because this copper is so soft 103 00:06:36,120 --> 00:06:40,959 They actually have to coat it with a nickel alloy and since it's soft it does wear out quickly 104 00:06:40,960 --> 00:06:44,530 So you have to replace these plugs in about twenty to thirty thousand miles. Next 105 00:06:44,530 --> 00:06:50,799 we have a platinum plug which is a little more expensive than the copper plugs these plugs use a platinum tip right there at the 106 00:06:50,800 --> 00:06:55,780 Center electrode which isn't as conductive as copper, but it is harder and more resistant to wear 107 00:06:55,780 --> 00:06:59,429 So these plugs could last sixty to a hundred thousand miles before they need to be replaced next 108 00:06:59,430 --> 00:07:03,299 We have a double platinum or a double iridium plug with a double platinum 109 00:07:03,300 --> 00:07:08,859 There is a piece of platinum on the center electrode and there's a piece of platinum on the ground electrode 110 00:07:08,860 --> 00:07:11,430 This is designed for a waste spark or reverse spark ignition system 111 00:07:11,430 --> 00:07:15,699 So normally the spark comes from the center electrode goes to the ground electrode 112 00:07:15,800 --> 00:07:18,90 But on some cars the spark goes from the ground electrode to the center electrode 113 00:07:18,159 --> 00:07:21,849 so you want to make sure you have platinum on both sides so you don't get 114 00:07:21,919 --> 00:07:25,718 Excessive wear and the double platinum plug is actually what I need to use on my car 115 00:07:25,719 --> 00:07:29,278 it's what the owner's manual says and if it does say that in the owners manual make sure you use a double platinum if you 116 00:07:29,279 --> 00:07:32,189 Use a regular platinum your plug is going to wear out really quickly 117 00:07:32,189 --> 00:07:33,210 and finally 118 00:07:33,210 --> 00:07:39,449 The last plug is an Iridium plug and this is typically the most expensive it uses a fine iridium tip which helps with the ignitability 119 00:07:39,449 --> 00:07:45,728 of the fuel iridium is also harder and more resistant to wear. So it lasts the longest up to around 120 00:07:45,430 --> 00:07:48,120 120,000 miles. So those are the main types of spark plugs now 121 00:07:48,120 --> 00:07:51,120 Which ones should you use and it's really easy to figure that out 122 00:07:51,120 --> 00:07:55,349 Just grab your owners manual flip to the part about spark plugs, and you can see here, right 123 00:07:55,419 --> 00:08:01,288 There is the part number which is a double platinum plug I suggest going with that an OEM plug 124 00:08:01,289 --> 00:08:06,299 It's the plug that the engine was designed for but funny enough, they don't make an OEM plug anymore 125 00:08:06,300 --> 00:08:08,900 It's been discontinued for my car 126 00:08:08,900 --> 00:08:13,169 So the next best thing I found an aftermarket brand that makes the proper double platinum plugs 127 00:08:13,169 --> 00:08:18,209 So that's what I'll be using. Now, If you are gonna change the type of plug you're using never downgrade your plug 128 00:08:18,210 --> 00:08:24,609 so if you have an Iridium plug don't use a platinum if you have a platinum plug don't use a copper usually a downgrade's a 129 00:08:24,610 --> 00:08:29,430 Cheaper plug so I know it's tempting but your engines supposed to run on a specific plug. So use that plug or sometimes 130 00:08:29,430 --> 00:08:34,169 It's okay to upgrade if you have a copper plug you could usually upgrade to platinum and if you have a platinum plug you could 131 00:08:34,169 --> 00:08:39,609 Upgrade to iridium with that being said, I need double platinum plugs. So that's exactly what I went with 132 00:08:39,610 --> 00:08:42,820 I also decided to get some spark plug wires. It's perfect preventative maintenance 133 00:08:42,820 --> 00:08:44,189 I need to take the wires off anyway to get to the plugs 134 00:08:44,190 --> 00:08:48,419 So now you know, which spark plugs you need for your car. Let me show you how to remove them 135 00:08:48,420 --> 00:08:54,550 But before you remove anything you want to make sure that you're working on a cool engine if your engine is hot and you remove 136 00:08:54,550 --> 00:08:54,240 those spark plugs 137 00:08:54,240 --> 00:08:55,350 you could damage the 138 00:08:55,350 --> 00:09:01,929 Threads holding the spark plugs in with that said this engines nice and cool so we could start getting to work now to find your 139 00:09:01,930 --> 00:09:06,210 Spark plugs is really simple just find the spark plug wires and they'll lead you to each one of the spark plugs we have four 140 00:09:06,210 --> 00:09:12,699 spark plugs on this side the engine and then we have four spark plugs on that side of the engine so pick a side and 141 00:09:12,700 --> 00:09:17,770 Let's get started removing the spark plugs, the four spark plugs on this side are located under these wires 142 00:09:17,770 --> 00:09:18,240 And before we remove the wires 143 00:09:18,240 --> 00:09:24,0 You want to grab some compressed air and blow away any loose dirt or dust that's surrounding the spark plug wells now we can remove 144 00:09:24,0 --> 00:09:29,650 The wires I'm actually gonna remove this breather hose to get it out of the way and when we're removing the wires you don't want 145 00:09:29,650 --> 00:09:33,90 To grab the wire and yank it from the actual wire because that could damage the wire so that's not good 146 00:09:33,90 --> 00:09:36,269 especially if you're gonna reuse these what you want to do is grab it by the boot and 147 00:09:37,550 --> 00:09:38,430 Pull it out from there like that 148 00:09:38,430 --> 00:09:41,430 Now I'm gonna push this back in because I want to show you something sometimes 149 00:09:41,430 --> 00:09:45,359 These are really difficult to remove and that's where a nose ring pliers helps tremendously 150 00:09:46,550 --> 00:09:50,310 All you have to do is get in here grab the boot and then this gives you the extra leverage 151 00:09:51,530 --> 00:09:57,699 to pull it right out and now we have access to that spark plug which is deep down in that well, so again, 152 00:09:57,700 --> 00:10:02,619 We're gonna use some compressed air to remove any dirt and debris and you're not gonna want to skip this step 153 00:10:02,620 --> 00:10:04,320 There's a little rock and a piece of a stick that was down in there 154 00:10:04,320 --> 00:10:11,559 And if we remove that spark plug that debris could have fallen into the engine so very important grab your compressed air grab a vacuum 155 00:10:11,560 --> 00:10:14,979 Whatever it is and just get all that dirt out of those spark plug wells now 156 00:10:14,980 --> 00:10:15,420 You're going to want to grab a spark plug socket 157 00:10:15,420 --> 00:10:21,940 it has a little rubber boot in there and what the rubber boot does is it holds the spark plug in place so you could 158 00:10:21,940 --> 00:10:24,419 Pull it out of the well, it also protects the ceramic insulation from getting cracked 159 00:10:24,420 --> 00:10:27,970 I'm gonna be connecting this spark plug socket to a nice long 160 00:10:27,40 --> 00:10:32,339 extension so we could get down in there and all you have to do is push this down onto the plug once you're on the 161 00:10:32,340 --> 00:10:38,979 Plug break it loose like that and you should be able to loosen the spark plug the rest of the way by hand 162 00:10:38,200 --> 00:10:42,879 So, let's see what we got, beautiful, So that's how you remove an old spark plug 163 00:10:42,880 --> 00:10:44,460 So now let me show you how to install a new one now 164 00:10:44,460 --> 00:10:49,960 It's always important to compare the old parts with the new parts to make sure that they're the same exact part 165 00:10:49,960 --> 00:10:55,79 This is especially important on spark plugs because if your spark plug is extra tall the top of the piston could hit the spark plug 166 00:10:55,80 --> 00:10:57,520 And you could damage your engine 167 00:10:57,520 --> 00:10:59,460 And in this case if you look at where the spark plug seat in the engine 168 00:11:00,580 --> 00:11:03,549 They look like they're the same exact size and these look good 169 00:11:03,590 --> 00:11:05,979 So once you know you have the correct plugs for your car 170 00:11:05,980 --> 00:11:09,910 the next thing that you need to do is make sure that gap of the plug is the 171 00:11:09,30 --> 00:11:13,899 Correct size, if the gap is too wide, you might not get any spark at all 172 00:11:13,900 --> 00:11:18,519 If the gap is too small you might get a weak spark and it might not ignite the fuel efficiently 173 00:11:18,520 --> 00:11:21,639 So it's very important to get the proper gap on your plugs 174 00:11:21,640 --> 00:11:24,330 Even if your plugs come pre-gapped like this they can get messed up in shipping 175 00:11:24,330 --> 00:11:30,610 So it's always a good idea to check the gap because it's so important now to find the correct gap spec 176 00:11:30,610 --> 00:11:33,669 You could check your owner's manual or you could go under the hood of your car 177 00:11:33,770 --> 00:11:35,370 There should be an emission sticker sometimes out in the front 178 00:11:35,370 --> 00:11:40,629 Sometimes it's on the side here and sometimes you can find it right under the hood right here 179 00:11:40,630 --> 00:11:43,320 It says spark plug gap 0.052 to 0.056 inches 180 00:11:43,320 --> 00:11:48,939 So once you know the proper gap for your car next you need to check the plugs using a gapping tool 181 00:11:48,160 --> 00:11:51,449 So these are the most common types of gapping tools first 182 00:11:51,450 --> 00:11:55,200 We have a feeler gauge and it has a bunch of different tongues that have different thicknesses 183 00:11:55,270 --> 00:11:57,190 And what you want to do is you want to find the right? 184 00:11:57,190 --> 00:12:00,180 thicknesses that add up to your gap spec and 185 00:12:00,250 --> 00:12:04,470 While you can use a feeler gauge to check the gap you're better off using a proper gapping tool 186 00:12:05,570 --> 00:12:11,530 Next is the one I personally like to use and it's the coin style gauge right along the edge here is a lip that gets 187 00:12:11,530 --> 00:12:15,30 Thicker and thicker and then there's measurements along the edge to let you know the gap of the plug 188 00:12:15,30 --> 00:12:20,40 so all you do is you put the plug in at the thin end and then slide it all the way until it's hard to 189 00:12:20,40 --> 00:12:22,0 Move and you can see 0.053 190 00:12:22,0 --> 00:12:28,350 now the coin style gauge is not recommended for platinum tip or iridium tip plugs because the process of sliding this across 191 00:12:28,420 --> 00:12:33,240 Could damage the platinum or iridium what I do is I'm just extra careful. I don't press hard 192 00:12:33,240 --> 00:12:39,549 I just lightly move it across and in this case if we want to open up the plug at all open the gap up we 193 00:12:39,550 --> 00:12:41,310 Just use this right up here and then you can pry this open 194 00:12:42,920 --> 00:12:43,410 Then if we regap it 195 00:12:43,410 --> 00:12:47,949 You can see that went up to 0.060 and then if you want to close it 196 00:12:47,950 --> 00:12:52,20 You just find a hard surface and you press the plug down on the back and that'll close the gap, now 197 00:12:52,20 --> 00:12:58,660 We're at 0.052 and finally the last tool is recommended for platinum and iridium style plugs 198 00:12:58,660 --> 00:13:01,439 And it's the wire gapping tool around the outside of this has different gauge wires 199 00:13:01,440 --> 00:13:04,140 So you can see we have a 0.050 inch and a 200 00:13:04,140 --> 00:13:08,560 0.055 inch on this side. And that's the range that we need to be in between 201 00:13:08,570 --> 00:13:12,790 so what you do with this you just get the wire and you try to slide it in the gap and you can see that's 202 00:13:12,790 --> 00:13:15,909 Pretty tight. It's grabbing on there. So it's pretty close to 0.05 203 00:13:15,910 --> 00:13:21,759 Oh It's a little bit larger and if we go to 0.055 it doesn't fit and if you wanted to open the gap up 204 00:13:21,760 --> 00:13:23,100 So let's just say we want it to be 0.055 inches 205 00:13:23,100 --> 00:13:25,100 what you do is you use the end here and 206 00:13:25,210 --> 00:13:30,670 You're gonna just slide it in here like that and you're gonna pry the gap open 207 00:13:30,800 --> 00:13:31,380 Just a little bit now 208 00:13:31,380 --> 00:13:37,980 If we test this gap you can see it slips in but there is some resistance so it's right around 0.055 209 00:13:37,980 --> 00:13:38,860 0.056 210 00:13:38,860 --> 00:13:43,569 which is within spec and if you want to close up that gap you do the same thing you slide the tool in there and 211 00:13:43,570 --> 00:13:47,559 You just pry the ground electrode the other way so that it closes and that's what's recommended 212 00:13:47,630 --> 00:13:53,70 For the newer style plugs and one more quick tip when you are adjusting the gap make sure you make little adjustments 213 00:13:53,70 --> 00:13:58,660 Don't make large adjustments if you adjust the gap too far and you bend it up like that 214 00:13:58,660 --> 00:14:00,500 That spark plug is now no good 215 00:14:00,500 --> 00:14:03,640 So make sure you're careful and make little increments on your spark plug gap 216 00:14:03,740 --> 00:14:07,170 Changes when you gap your plugs and that's all there is to checking the gap and adjusting the gap 217 00:14:07,170 --> 00:14:10,229 So even if your spark plugs are pre-gapped from the factory 218 00:14:10,330 --> 00:14:14,650 Usually you can tell if they're pre-gapped because they have a protective casing like that 219 00:14:14,650 --> 00:14:16,410 So even if they're pre-gapped be sure to check that gap 220 00:14:16,410 --> 00:14:20,949 So all of our spark plugs are gapped , now we're ready to install them. Now 221 00:14:20,950 --> 00:14:24,210 There's one more thing that we need to cover and that is the use of anti-seize and dielectric grease 222 00:14:25,670 --> 00:14:28,19 Anti-seize is a lubricant that goes right on the threads of the spark plug 223 00:14:28,20 --> 00:14:32,40 You don't want to use a lot and you just want enough to lightly coat the threads that's it 224 00:14:32,40 --> 00:14:35,279 The whole point of it is to make sure the threads don't get stuck inside the engine 225 00:14:35,280 --> 00:14:38,619 So when you go to remove the spark plugs, it'll come right out 226 00:14:38,780 --> 00:14:43,350 we don't want to put too much where there's globs on here and then it could drip down and bridge that gap and cause a 227 00:14:43,350 --> 00:14:50,219 Misfire but with all the different spark plug technologies and engine technologies today. A lot of times. It's recommended not to use anti-seize 228 00:14:50,220 --> 00:14:53,889 So how do you know whether or not to use anti-seize in your car? 229 00:14:53,890 --> 00:14:55,499 Well first check the owner's manual a lot of times it's in there 230 00:14:56,500 --> 00:15:01,690 It'll tell you if you should or shouldn't you could also check the service manual and finally you want to check with the spark plug 231 00:15:01,690 --> 00:15:02,890 Company you go with for example 232 00:15:02,890 --> 00:15:06,850 I called these guys up and I asked them should these use anti-seize and they said no 233 00:15:06,850 --> 00:15:08,889 No, anti-seize is required on these plugs 234 00:15:08,890 --> 00:15:09,310 I know some brands like 235 00:15:09,310 --> 00:15:16,929 NGK they use a special coating on their threads and they actually recommend that you don't use anti-seize because you could over torque their 236 00:15:16,930 --> 00:15:17,510 spark plugs 237 00:15:17,510 --> 00:15:18,70 So check your manuals 238 00:15:18,70 --> 00:15:24,520 Check the spark plug companies and that will let you know whether or not you should use anti-seize on your spark plugs in this 239 00:15:24,520 --> 00:15:26,679 Case we are not using anti-seize so next 240 00:15:26,680 --> 00:15:31,840 Let's cover the use of dielectric grease now dielectric grease or silicone grease is an insulator 241 00:15:31,840 --> 00:15:35,309 So you definitely don't want to get it on the threads of the spark plug where you want to put it you want to get 242 00:15:35,310 --> 00:15:41,799 A nice glob of it right there on that ceramic and then you want to spread that glob around the whole ceramic base 243 00:15:41,800 --> 00:15:46,380 So there's a light coat of grease on the ceramic like so it's also a good idea to get some of that dielectric grease 244 00:15:47,660 --> 00:15:48,120 inside the spark plug boot 245 00:15:48,120 --> 00:15:53,190 what I like to do is I like to get a cotton swab get some grease on the cotton swab and just coat the 246 00:15:53,260 --> 00:15:55,349 inside of the rubber with the grease just 247 00:15:56,510 --> 00:16:01,989 like that and then when we go connect it to the spark plug later on it'll slide all the way down and that 248 00:16:01,150 --> 00:16:04,379 Dielectric grease is going to prevent moisture from getting in here and causing corrosion 249 00:16:04,380 --> 00:16:06,100 And it's also going to prevent that high voltage 250 00:16:06,100 --> 00:16:12,730 From leaking out and finally when we go to replace the spark plugs that silicone on the boot is going to make it really easy 251 00:16:12,730 --> 00:16:13,810 to remove the boot 252 00:16:13,810 --> 00:16:18,299 It won't be seized on there that way replacing your spark plugs and your wires down the road will be a lot simpler and one 253 00:16:18,300 --> 00:16:23,950 Last thing it's not a bad idea to get a little bit of silicone on the other end of the spark plug wire as well 254 00:16:23,20 --> 00:16:27,879 To help insulate and you want a thin coat right around the edge just like that 255 00:16:27,910 --> 00:16:30,179 All right, so I greased all the spark plugs. They're all set 256 00:16:30,180 --> 00:16:35,590 I did all the wires and we still have some dielectric grease left. So you really don't need that much 257 00:16:35,590 --> 00:16:41,799 So with all the plugs gapped, they're all greased. We don't need any anti-seize we are ready to go. Let's grab a plug 258 00:16:41,800 --> 00:16:46,540 Let's grab our torque wrench and let me show you how to install these plugs properly 259 00:16:46,540 --> 00:16:47,190 There's a few tips and tricks that I have 260 00:16:47,190 --> 00:16:48,360 That are gonna make this real easy 261 00:16:48,360 --> 00:16:52,630 Now it's super important that you tighten down your spark plugs correctly 262 00:16:52,630 --> 00:16:57,179 if you tighten them down too much you could damage the threads if you don't tighten it enough, the spark plug could come loose and 263 00:16:57,180 --> 00:16:58,320 blow out of the engine 264 00:16:58,320 --> 00:17:02,530 So how I like to do this is I like to stick the spark plug in the socket 265 00:17:02,690 --> 00:17:07,260 With my extension and drop it down in there. Now I'm gonna do this by hand. You never use an impact gun 266 00:17:07,260 --> 00:17:10,570 You never use a wrench and this should tighten pretty easily 267 00:17:10,570 --> 00:17:11,339 There should be almost no resistance 268 00:17:11,339 --> 00:17:16,379 If it's hard to tighten, back it out and start over. The reason why we do this is because you don't want to cross thread 269 00:17:16,380 --> 00:17:23,189 The plug and once you can't tighten it any more by hand grab your torque wrench and we're gonna torque this down to 15 foot-pounds 270 00:17:25,790 --> 00:17:28,349 Just like that now if you weren't replacing your spark plug wires 271 00:17:28,350 --> 00:17:34,570 all you'd have to do is push this wire all the way down until it clicks and you are done with that spark plug and 272 00:17:34,570 --> 00:17:36,879 I like to work on one plug and one wire at a time 273 00:17:36,880 --> 00:17:41,739 So we did that one next we'd move down to that one after we finish that would move on to the next one that way 274 00:17:41,740 --> 00:17:44,70 You don't mix up any of the wires now in this case. I'm gonna be replacing the wires 275 00:17:44,70 --> 00:17:49,139 so let's remove this wire and then finally follow it all the way up to the coil here and 276 00:17:50,680 --> 00:17:55,509 remove it from the coil and a little trick is to lay out all your wires in size order that way when you get your 277 00:17:55,510 --> 00:17:56,990 Wire you just find the right 278 00:17:56,990 --> 00:18:02,99 size that matches up looks like right there and then we know we have the right size wire and since we're doing one wire at 279 00:18:02,100 --> 00:18:06,360 A time there's only one spot. We can't mess this up put it right on top, press it down till it clicks 280 00:18:07,60 --> 00:18:08,220 Same thing at the plug 281 00:18:08,220 --> 00:18:10,60 Press the wire down until it clicks 282 00:18:10,60 --> 00:18:15,820 Good and once you hear and feel that click that means it's seated properly and we have a good connection and we're done with that 283 00:18:15,820 --> 00:18:16,690 spark plug and wire 284 00:18:16,690 --> 00:18:22,110 So again, remove the wire, clean the well out, break the plug loose, then out with the old and in with the new 285 00:18:22,350 --> 00:18:25,439 Then torque it to spec and finally push in the new wire 286 00:18:25,440 --> 00:18:31,19 So it clicks you're gonna follow these same exact simple steps for each spark plug you replace take your time 287 00:18:31,20 --> 00:18:34,139 And it really is this simple now, let's say you don't own a torque wrench 288 00:18:34,140 --> 00:18:39,420 You can still get this tight to the proper spec just grab your regular old ratchet get it on there 289 00:18:39,420 --> 00:18:43,350 And since it's hand tight you can see right there. It's pretty snug from where it's snug 290 00:18:43,350 --> 00:18:48,639 You just want to turn it about a sixteenth of a turn or just a little bit more just like that 291 00:18:48,640 --> 00:18:51,420 You don't need a lot. You just want to Snug it down just a little bit more and that's all good 292 00:18:51,420 --> 00:18:56,489 Now we could go and get our last wire in there and with that click we are done on this side 293 00:18:56,490 --> 00:18:59,980 So now let's go and do the other side 294 00:19:00,680 --> 00:19:04,200 For the other side the intake tubing has to be removed to get access to the plugs once you have access 295 00:19:04,200 --> 00:19:10,899 it's the same process as before and with a little time-lapse editing, the plugs and wires on this side of the engine are replaced as 296 00:19:10,900 --> 00:19:10,380 well 297 00:19:10,380 --> 00:19:16,510 so we're done replacing the plugs and wires on this engine and the only thing that was in the way was the intake tubing and 298 00:19:16,510 --> 00:19:21,970 It really wasn't that bad. But on some cars it's even easier like with most four-cylinder engines. The plugs are right at the top 299 00:19:21,970 --> 00:19:25,689 So it's really easy to get to and replace you could replace these in like 10 minutes 300 00:19:25,910 --> 00:19:31,80 But not all plugs are this easy to replace some cars like this Subaru, It has a very compact engine bay plus 301 00:19:31,80 --> 00:19:33,580 This is a boxer engine 302 00:19:33,580 --> 00:19:38,129 So the spark plugs are on the side of the engine and you can see there is no access here and there's no access there 303 00:19:38,130 --> 00:19:43,260 So what you'll have to do here is you remove the battery and that gives us access so we can remove the spark plugs 304 00:19:43,480 --> 00:19:47,559 Here we don't have plug wires. And instead. We have a coil on plug 305 00:19:47,720 --> 00:19:51,579 So remove the coil and the trick is to use a universal joint extension 306 00:19:51,580 --> 00:19:55,779 Which allows you to fit into tight places get the socket on the plug then break it loose 307 00:19:55,330 --> 00:20:00,90 loosen it up the rest of the way by hand and that's how you remove a tough to reach plug and you can do the 308 00:20:00,90 --> 00:20:02,660 Same thing to the spark plug right there 309 00:20:02,660 --> 00:20:06,969 So that gives you a really good idea just use a swivel socket or a universal joint extension like this 310 00:20:06,70 --> 00:20:10,540 Remove the battery you could get into tight spaces on the side of the engine bay 311 00:20:10,540 --> 00:20:11,220 You'd do the same thing on this side 312 00:20:11,220 --> 00:20:15,150 Except you to remove the intake and again you get in there with a universal joint extension 313 00:20:15,150 --> 00:20:20,619 So now let's cover one more tricky, but common style engine and that's the transverse engine 314 00:20:20,620 --> 00:20:22,170 So this engine is sitting sideways because it's front-wheel drive 315 00:20:22,170 --> 00:20:25,499 Now that makes it really easy to get to the three plugs that are up here 316 00:20:26,500 --> 00:20:30,699 But the plugs that are in the back, I mean they are all the way in the back here 317 00:20:30,700 --> 00:20:31,470 So there's two ways to go about this one 318 00:20:31,470 --> 00:20:37,600 you could try going from underneath the car and see if you have access to the plugs that way in this engine you don't but 319 00:20:37,600 --> 00:20:40,870 The way you do it on this car is you remove the wiper blade cowl right here 320 00:20:40,870 --> 00:20:43,839 Then that gives you so much more room to get your arms back there 321 00:20:43,840 --> 00:20:47,100 And if you really don't want to remove the cowl you could go in there and do it by feel sure 322 00:20:47,100 --> 00:20:52,719 It's a pain and it takes a little bit longer but replacing the plugs on transverse engines is completely doable 323 00:20:52,940 --> 00:20:55,230 So there you go. That is how you replace your spark plugs in your car 324 00:20:55,230 --> 00:21:00,760 There's one more thing that we need to do and that is start her up and make sure she is running right 325 00:21:03,10 --> 00:21:06,160 And I can tell already that is so much better 326 00:21:08,580 --> 00:21:13,150 Ah Man, that sounds good. No more misfire. And that is how you replace your spark plugs and wires in your car 327 00:21:13,150 --> 00:21:16,819 Those are all my tips and tricks try to make it as simple as possible 328 00:21:16,860 --> 00:21:19,790 So hopefully the video is helpful if it was remember to give it a thumbs up 329 00:21:19,790 --> 00:21:25,0 also If you're not a subscriber consider subscribing and as always all the tools and products I used in this video are linked in the description
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