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Started By
Message
Remind me on spark plug wires please
Posted on 4/22/20 at 7:35 am
Posted on 4/22/20 at 7:35 am
Been awhile since I’ve replaced spark plugs. Last time I did was on an 89 GMC about 10 years ago. Have an 08 Silverado and got some plugs and wires from Napa. For some reason I though wires were labeled 1-8 to go only in specific spots. I don’t see numbers on the wires.
I know how to pull the plugs and put them in, I just for some reason thought the wires were labeled. It’s the Napa mileage plus wires with ACDelco plugs. I won’t be fooling with it till tomorrow. I do know the locations or which one is 1-8, I believe 1,3,5,7 are driver side with highest number in the back, and even numbers on passenger side, and 8 iirc is a pain in the arse to get out. Again, I’m just drawing a blank regarding the wires.TIA
I know how to pull the plugs and put them in, I just for some reason thought the wires were labeled. It’s the Napa mileage plus wires with ACDelco plugs. I won’t be fooling with it till tomorrow. I do know the locations or which one is 1-8, I believe 1,3,5,7 are driver side with highest number in the back, and even numbers on passenger side, and 8 iirc is a pain in the arse to get out. Again, I’m just drawing a blank regarding the wires.TIA
10
Posted on 4/22/20 at 7:36 am to windshieldman
Google is your friend. Look up the firing pattern
Posted on 4/22/20 at 7:48 am to windshieldman
One wire off. One plug out. One plug in. One wire on.
I garonteee you won’t screw it up if you follow these directions for all 8 plugs and wires.
I garonteee you won’t screw it up if you follow these directions for all 8 plugs and wires.
This post was edited on 4/22/20 at 10:29 am
Posted on 4/22/20 at 7:53 am to DownSouthJukin
^^^^^the only logical way to do it
Posted on 4/22/20 at 8:09 am to DownSouthJukin
quote:
On wire off. On plug out. One plug in. One wire on
I understand to do one at a time. For some reason I was thinking each wire had to be in a certain spot. As in a #1 or #5 or whatever wire went only in that location. I guess I was expecting my wires to be labeled with a number. Not sure what the hell I was thinking
Posted on 4/22/20 at 8:17 am to windshieldman
If you’re worried about getting things out of order, just use masking tape and a Sharpie to label the old wires and new wires 1-8 before you start and make a short video documenting the old wires’ locations from cap to plug.
This post was edited on 4/22/20 at 8:18 am
Posted on 4/22/20 at 8:21 am to windshieldman
The only reason certain wires go to certain locations is length. Of coarse you also need to have them on the right plug/ distributor lug for the firing order.Just match lengths as you take them off.
Posted on 4/22/20 at 8:26 am to animalcracker
^^^^ This
Posted on 4/22/20 at 8:38 am to animalcracker
quote:
The only reason certain wires go to certain locations is length. Of coarse you also need to have them on the right plug/ distributor lug for the firing order.Just match lengths as you take them off.
That’s what it was
I know to put on right plug and lug. I couldn’t remember, so it’s just all about length. I knew it was something easy and I was making it more complicated. I’m good now. I’ll do one at a time and make sure to put in correct plug and lug. Thanks everyone Posted on 4/22/20 at 8:45 am to windshieldman
An 08 should have a coil per plug, no distributor. 
At least the 4.8 is like this.
At least the 4.8 is like this.
Posted on 4/22/20 at 8:48 am to windshieldman
18436572, I'm pretty sure. shorter wires on back, longer, on front. Mark your no.1 plug wire spot on the distributor. The rotation is clockwise, looking down at your distributor.
You're not replacing cap and rotor?
You're not replacing cap and rotor?
This post was edited on 4/22/20 at 9:07 am
Posted on 4/22/20 at 10:14 am to windshieldman
I just changed mine this past weekend same truck with 5.3. They are all the same length just make sure to plug the right coil pack to the corresponding plug. Do one at a time pretty simple.
Posted on 4/22/20 at 10:36 am to windshieldman
quote:
I understand to do one at a time. For some reason I was thinking each wire had to be in a certain spot. As in a #1 or #5 or whatever wire went only in that location. I guess I was expecting my wires to be labeled with a number. Not sure what the hell I was thinking
Some sets are numbered and some applications require a certain length wire. Even if it will reach it may be longer than it is supposed to be, adding resistance to the circuit and sending bad information back to the computer. I'd do em one at a time and try to get the new one that is closest to length to the old one. If they need replacing (they do break down over time) doing so will make a noticeable improvement in performance and efficiency....most shade tree mechanics tend to play down plug wires but new ones can make a heckuva difference....
Posted on 4/22/20 at 11:01 am to Gtmodawg
quote:
If they need replacing (they do break down over time) doing so will make a noticeable improvement in performance and efficiency....most shade tree mechanics tend to play down plug wires but new ones can make a heckuva difference....
I've raised the hood on a car, or truck, that I've just traded for before, in the dark, and it looked like a lightning storm, going on under the hood. Some people just let shite go.
Posted on 4/22/20 at 11:51 am to windshieldman
Thank ya'll very much.
Posted on 4/22/20 at 1:06 pm to auggie
quote:
I've raised the hood on a car, or truck, that I've just traded for before, in the dark, and it looked like a lightning storm, going on under the hood. Some people just let shite go
I bought a line truck (derrick digger / crane / bucket combination) about 20 years ago that was a 1967 model ford 2-1/2 ton dually frame with a 460 Cubic Inch engine. Old boy I bought it from was selling it for scrap when I found it and the hydraulics, even if it needed rebuilt, were worth the $500 he was asking for it. When I got it home I put a battery in it, poured some gas in the Carb and it fired...didn't crank but fired! I drained the gas tank, put fresh gas in it....and it fired right up. They guy I bought it from said it wouldn't crank. It ran ROUGH though....barely running with the throttle about half way to the floor and wouldnt idle at all. I figured it was pretty shot and didn't think too much about it, figuring I would get around to checking out the hydraulics eventually. Shortly after getting it home a buddy asked me about it one night while we were smkoking cigars and staring into the firepit. We decided we'd fire that puppy up....and sure enough, at night, with the hood open and it running, it looked like St Elmo was having a party in the engine compartment! Arcing everywhere....The next day I slapped a set of points and plugs, a condenser, distributor cap and plug wires in that puppy...spent about $100 total....and that son of a gun ran like a brand new one! It crank with about 1/3 of of a turn of the starter motor when it was 10 degrees outside and would idle for days without running hot....it was a working beast! It wasn't pretty but I made a lot of money with that $600 truck...and then sold it for $4000! As far as I know it may still be running....
Posted on 4/22/20 at 1:26 pm to windshieldman
If it is an 08 Silverado it will have coil packs above each plug. Just a short wire from pack to plug. Not like going from a distributor.
Posted on 4/22/20 at 1:48 pm to Gtmodawg
That's why I like the old stuff. I've got a 63 willys/Kaiser/Jeep j200 gladiator. It has the original OHC tornado straight 6 engine. When I bought it, it hadn't ran in years. It had a dirt dobbers nest in the carb. I pulled the top of the carb and cleaned it out, and stuck a rebuild kit in, right there with the carb still on the intake. Poured fresh gas down the carb, and it fired right up.
The brakes were stuck, so we had to pull it a little ways to get them unstuck, but I drove it to my house, which was about 20 miles, then I started working on everything. I still have the truck, and it runs like a top. It has 4.55 gearing though, and drinks gas like crazy. When that thing is in 4 low though, it is a beast.
The brakes were stuck, so we had to pull it a little ways to get them unstuck, but I drove it to my house, which was about 20 miles, then I started working on everything. I still have the truck, and it runs like a top. It has 4.55 gearing though, and drinks gas like crazy. When that thing is in 4 low though, it is a beast.
Posted on 4/23/20 at 3:28 pm to windshieldman
Thanks for all the replies, it went smooth. I don’t remember making love to the engine of my old truck like I had to with this truck, especially doing the # 7,8 plugs. Other than feeling violated everything went well.
Posted on 4/23/20 at 3:48 pm to DownSouthJukin
quote:
One wire off. One plug out. One plug in. One wire on.
This! Should be law.
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