Chevy Truck Spark Plug Wires? WATCH THIS FIRST!

I've done plugs and wires at least once on my 2000 Silverado 4.8
Probably twice
I don't recall any terminals coming off
Maybe I just got lucky

And I re-use the shields

And I definitely save a couple wires and keep them in the truck
Had 1 rub through against the steering column once and was shorting out on it

My special tool to remove the spark plug wires was a combination of using my words and violence.
They started breaking apart as I would pull them off with pliers. It seems to be the only tool to use. I said screw it a third of the way through and ripped them the rest out. This video has confirmed I wasn’t doing anything wrong. 2002 Silverado 5.8 Z71 285k

I GOT LUCKY AND DIDNT ruin any when i just did my plugs at 95k

Yeah, they are a real PITA but the good news is you only have to change them every 125,000 or so miles.

Also watch out for the temp sensor by that first cylinder on the driver's side of ya break that in any way ....your gonna have some big problems cuz this engine uses coolant temp to adjust the air fuel ratio...just a friendly reminder bud your awesome and have real honest advice when it comes to these vortec engines! Thanks for the tips and tricks

My special tool is a long set of needle nose pliers but the needle nose has a long curve which will rest on the motor and act like a fulcrum to easily remove the boots, even the stubborn ones. Hope this helps someone

Do the wires break when removing?

I have had pretty good luck with first pull the wire off the coil(that end rarely has issues) then twist/spin the boot on the spark a few times then try to pull the wire with angle nosed pliers, usually works especially if the wire have been changed before but typically a factory set of wires will still fall apart even with all the tricks.

Take the wire off of the coil. Spin the wire on the plug until it spins freely then they come right off.

You didn't go any deeper about your compression test and mystery coolant leak. I'm curious what you found.

I recently changed my spark plug wires, the AC Delco ones I bought were too short, 9.2 or 10 inches I needed 12 so i ended up buying a brand I was unfamiliar with from O'Reilly's.. what's up with that GM

Oddly enough, my 01 with 322k miles didn't break any of the plug end boots when I pulled them, but I did replace them as a few were crusty and cracking on the wire insulation.

Thanks Matt for the good tips on plugs. I got to replace the ones on my 5.3 this will help me. Laterrrrrrr

The last time I changed plugs on a 5.3, I thought it all went badly, that I was missing a trick. Nope, next time I will start out how I finished last time, with broken plugs. The job is a PITA, get the good parts.

I now use the Accel wires with the ceramic ends.

My 1992 camaro has the same wire boot & similar metal heat shields. If you can grab the top of the boot and turn until the entire boot will turn, you will be far more likely to get the wire off without breaking. This does 2 things, first it breaks the adhesion of the boot to the plug, second it helps lossen the metal connector so it will be easier to remove. Just something I found that makes a huge difference when trying to remove the wires. I also tend to replace them sooner. By 100K miles you almost guaranteed to have had 1 or more bad wires for the last 20K miles. I tend to replace them at 45k to 50k miles. It reduces problems with removal, and helps not only keep your mpg the best it can be but reduces stress on the catalytic converter. Bad wires causes the cat to work harder, reducing it's life span.

Vice grips is ur biggest friend doing this job, and angled pliers. & if u gotta remove the wheel go for it

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Are the 6 cylinder 4.3 engines supposed to have those heat shields, too? Mine doesn't have them, but I see replacement heat shields listed for sale on Rock Auto for that engine.

I have found that disconnected the wires from the coil and then twisting the boot on the plug a full turn helps a bit but its best to just buy a set of wires like you said. I always sell a set of wires anytime I do a set of plugs on these engines.

Try and twist the wire at the spark plug end before you pull it off. It loosens it and you wont brake any, at least I haven’t.

Perfect!

Greetings: Another reason those engines R junk. Thx 4 the share

Hello! I have a 2000 4.8 with 5 speed manual trans, it’s been a great solid truck for the 21k miles that I drive it in the year of ownership but it’s been having lots of power loss issues, I’ve replaced everything on the truck beside crank and cam sensors, ECT sensor, alternator, fuel pump and coil packs, everything thing else and I literally mean everything else on this truck has been done, as you can tell it was easier for me to make the list of things I haven’t done yet. I’ve gone thru every grounds did all the continuity tests needed. Knock sensors are bypassed tho because the bank 2 had low input but threw it into a limo mode, no audible tick or noise of concern, it has 262k miles on it now and the only other thing I know that’s been down was the new head or rebuilt head on the passenger side. Driver still looked original or not messed with at all when I did the valve cover gaskets, my cats are also starting to rattle quite a bit. I haven’t flown tested them yet but will soon, I’ll also be doing a leak down test for the valves and checking spark plug gap and fuel pressure as well, I’ve smoked tested it and no leaks at all not even in evap, all monitors clear just fine and I get the occasional knock sensor low input codes but drives the same. The codes sometimes are stored in the computer but does not set off the check engine light; it’s recently done this. Some more info on the truck is that it did have some mice nesting under the fuse box but I repaired all wires and has not been an issue there since. I’m coming at a dead end with this truck as i want the power back and I don’t want to throw any more parts at it, it has very slight surge in the idle but it revs up fine, it has been a little sluggish on rev too. I’m curious what someone thinks, it still has original O2 sensors and I haven’t cleaned them out yet, I used to chirp the wheels on my all terrain tires from 1st-2nd and 2nd to 3rd. It now it won’t even chirp the wheels on the 1st to 2nd pull.

Wouldn't never cease work with new wires and plugs not spelled right but you know what I mean

As a small business owner that runs only Chevrolet and GMC pickups this channel is a diamond. I just wish we could have stuck with 4L80e for its reliability. The 6L90e has not been as good to me as 4L80e. I haven't torn a 6.6L gas engine down. Is it just a bigger displacement LS? Thats what we have in our two newest fleet pickups. All the rest are 6.0s.

Shot a lil pb blaster at base of boots, twist n pull helps a bit sometimes

Yo Matt can you help me with my truck. 2002 Chevy Silverado 4.8 v8 There’s a lot fuel in my oil pan and spark plugs. Ive changed injectors, fuel pressure regulator, spark plugs and wires. I can’t figure out where it’s coming from. I took out a spark plug and try to start it and a lot of fuel just comes out.

I use duralast wires with no problems, can't remember the plugs I got but its been running strong. I also reused the heat shields, I didn't want to risk having to replace the wires all the time even though they have a lifetime warranty.

I use a needle nose wire boot pulling tool and it works great no problems all.

Wait you use the metal shield ? Why ? I believe you need put in the garbage , why you use again ?

HELLO I HAVE A 2009 CHEVY SILVERADO WITH THE 4,8 ENGINE i replace the plugs 'wires' new air filter '' AND NOW WHILE IM DRIVING ON HWY AT SPEED AROUND 40 TO 50 MPH ' FEELS LIKE THE ENGINE HAS MISS AND THE RPM WILL GO UP AND DOWN ' I PRESS THE PEDAL DOWN AT SPEED AROUND 60 ' IT DONT DO IT ANY IDEA WHAT COULD BE WRONG

That hood ground wire is starting to scream!😂

tips for the back spark plugs on a v8 its a damn pain even from under the truck

Just replaced my plugs and wires on my 4.8 vortec, 41-162 plugs and upgraded 10mm wires, boi it woke this motor up so satisfied w/ the performance. By the way i thought #8 was going to be a challenge but from the top w/ the right set up it was easy.. LOL once again thanks for all your advice happy trails..

Bro said the same thing over and over 😂

Your my favorite Chevy video Dude,,,,,I have experienced most of what you say,all true,,,keep up the good work,thanx

Great video just did replacement I wish I saw your video before 😂

Hey do u have a video on ignition control module? I got a 2000 chevy silverado 5.3 and I can't find ignition control module...please help