4.2L COIL REPLACEMENT GMC Envoy Chevy Trailblazer spark plugs ignition
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- เผยแพร่เมื่อ 6 ก.ย. 2024
- *GM 4.2L IGNITION COIL 6 PACK : amzn.to/36zaRaH
*OEM DELPHI COIL: amzn.to/34ila1k
*OEM SPARK PLUGS: amzn.to/2Nx3Dx5
*DI-ELECTRIC GREASE: amzn.to/2V56W0l
*ANTI-SEIZE: amzn.to/2FzXuv3
*MECHANICS TOOLS SET: amzn.to/30B7sGW
*TOP SCAN TOOL/CODE READERS: amzn.to/2PQIrEF
Quick video showing how I diagnose and replace bad ignition coils on a GM 4.2L engine.
Note: Spark plug gap is .043" `
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I’m a carpenter. I know a little bit about cars but this video was awesome. Best self-explanatory video ever had about working on a car. Give that man a raise. I really appreciate you guys down the road. You’ll get the same help you gave me. Thanks again.
I'm a 47 year old woman with no practical auto mechanic experience, but I do know how to use tools. I replaced my 3rd cylinder ignition coil after a P0303 error and it worked fabulously. Took me about 20 minutes to do and about 12 miles of driving to clear the engine light. Super instructive! Will replace other 5 coils and all 6 spark plugs next payday! Hate to think people are paying so much for repairs! Thank you very much.
Leigh Grieves that's what I like to hear! Good for you and congratulations on your repair! Thanks so much for your feedback and comment. I put these videos out for people like you so it makes me feel good
@@NoNonsenseKnowHow Wanted to mention.... the Amazon link for a single ignition coil takes you to the Amazon home page not a product, but I've used the ones for 19.98 (get them in 1 day with prime) and this is the link. You may not recommend these but they've worked really well for me. www.amazon.com/QYL-Ignition-Coil-Pack-Trailblazer/dp/B01FO0OBGE/ref=mp_s_a_1_4?keywords=qyl+ignition+coil+pack+2005+chevy+envoy&qid=1571659767&sr=8-4
05 Envoy 4.2- 200k
About 6 months ago I spent 90 bucks at autozone for ONE coil..when I got home I bought 2 more for like 20 or 30 each off amazon.
#6 went out of course..so i also replaced 5 and 4 with the two i bought online.
Wouldn't you know it; a few oil changes later and now its time to do the other three lol
I had to come back and get a refresher with your video. Thanks for that, I appreciate it. As you can see, alot of people feel the same way. I dont want to take money from mechanics but I dont have the $, which means i do my own work. I would've been interested to hear what the thumbs down guys had to say because i don't see any issues here. Maybe they needed more information or a slower walk through? anyway, this worked just fine for me. Thanks again!
I appreciate you sharing your story and the feedback! Thank you. Yeah it seems like somebody's always going to find a reason to hate on a video. I don't think I have a single video that doesn't have at least one or two thumbs down. Just part of the game I guess.
My plugs were changed last year, but swapped coils for #3 misfire with 4, and it followed to 4. I believe you've answered my question about if I should just change all of them at once!
Not only quick and clean, but alternate socket size to use? Sir THIS is quality content! Thank You
💯👌
Excellent tutorial video. Concise and thorough for anyone who works on cars. Everything I needed to know for the job in just 5 minutes. Even mentioned the bolt sizes! Great tip about using the anti-seize too.
Edward Khula thanks very much for your feedback! And glad to hear the video helped out!
Nice thanks
I greatly appreciate your attitude of this is for people who already know mostly what they’re doing. I can’t stand having to skip halfway through the video just to get two seconds of information I need. I think you’re like the only person I’ve subscribed to For Cars because that’s awesome.
Thank you for the no BS awesome video.
Complete and to the point!
Really great video good information, on the number six coil if you angle your extension from the front it will go right in without taking them apart 👍....
Dude u have the best video to watch. Get in it on it and around and finish it in such a short amount of time. Thank you so much for your video.
No problem! When it comes to how to videos I try to keep it as quick and fast-paced as possible. Thanks for dropping a comment. I Appreciate it
thank you this was verry helpful for my 2007 gmc envoy slt also worked in my cousins 2004 chevrolet trailblazer ltz and my grandfathers malibu maxx
Awe man, so cool of you to post this video- it’s a lot easier then I thought ,to replace mine- #4 was misfiring. Thank you much👊🏼
Exactly what I needed. Thank you for the no nonsense!
great direct info w no BS drama and no ghetto music :) thanks you confirmed my install
TH-cam ftw again. Always good to check a video even if it's easy. Don't want to miss something.
I just stumbled on this video, but if you have a catalog on here, consider me a loyal follower lol.
NOBODY makes shit that simple.
I'm not sure what you mean by "if I have a catalog on here". I have a bunch of videos, if that's what you mean . I definitely appreciate the comment and support! Thank you.
Great Video. Saved me some time trying to figure out which one is bad.
Thanks uR Vid helped me 100 % .....& now my envoy coil pk job is all done & complete ..Ill be back for more helpful tips & know how Thanks again
Awesome! Happy to hear the video was helpful and I appreciate the channel support. thanks
Thank you so much...i like the way u reach to the exact point by a nice diagnosis...thumbs up for you..
Thanks man and no prob
I am going to follow same for my 2008 Chevy blazer tomorrow...its hesitating and kind of vibrating at start engine....last week I have replaced all 6 plugs but I think now some of ignition coil may went bad....
Nice video, just needed a reminder, about to change the coils and plugs out of my mother in laws vehicle for her
Happy to help out. Good luck on the job!
Straight to the point. Thank you
Thumbs up 👍 I love to see people come on and thank you for your support. 😊 you’re doing amazing 🤩
Great video! I’m about to put one on number 6!
Any problems with number 6 im about to dive Into it myself
Just replaced all 6 plugs on ours and put new coil seals on it . Next step is coil pack
Thanks for the video. I had a pretty good idea how to do this but it's always nice to find a vid to make sure you're right.
Wow! Thank you so much! This video is very informative and easy to follow.
No problem. Thx for commenting!
The links saved me headache!
Awesome! Glad to help out
Wow wonderful info and concise. No extras just whats needed. What was it about the plastic piece by #1? How do you remove that?
Thank you so much. You are direct and straight to the point.
No problem man, thanks for the feedback!
Thanks buddy, truly no nonsense, very helpful for a rookie.
Thanks for the video because I need to do this today
No problem! Good luck on the job. Glad the video was useful to you
Good video straight to the point👍
Appreciate the help brother
Great instructional video.Thanks!
No problemo. thx
Question, ho long will the non Delphi coils last? I bought the cheaper set and didn't know the difference. I will be keeping it for awhile so my upgrade later.
From what I've seen they seen the last pretty good without a problem
@@NoNonsenseKnowHow Thanks!
Besides testing the spark plugs, how u know when to. Change the coils?
If you have a misfire or a cylinder that's not running at all. It's more than likely a coil. They're extremely common to cause misfires on these
Which is cylinder 1? The one toward the front of engine or the one at the back?
Front
*Thank you !*
Actually I stand corrected. I can't get the coil wires off.
Hey buddy my wife's Envoy with the 4.2L has had an issue with random misfires for about 2 weeks. You can barely feel it missing & can barely see the tach drop a tad everytime it does. Weird part is it's not triggering the CEL? I bought 6 new ACdelco 41103 plugs to go in it. I'm thinking it's not a coil pack as coils either work or they don't & you'd think a bad one would set a code. What do you think or suggest? Thanks
Coils always go bad in those. Very common. That would be my first guess
@@NoNonsenseKnowHow thanks for the response. I got it figured out. I put new plugs in it (ACdelco 41-103) this morning and it's back to running smooth as a sewing machine! I also cleaned the throttle body again while I was there, but it wasn't really dirty at all.
Forgot the dielectric grease. Shoot! Should I open it back up and put it on? Or is it good without?
Nah you'll be good man! If you happen to get a misfire in the future though try just taking the coil on plugs out and putting some Dielectric grease on the inside of the boots.
@@NoNonsenseKnowHow Thanks. I didn't get any with the 6 pack (like I was supposed to). I had the car apart before I noticed. Thanks for the reply. Another thumbs-up and new sub for ya. Thanks again.
@@sailor-rick thanks man I appreciate that. And honestly you'll be just fine. A lot of time the coils actually come pre-coated with dielectric the inside of the boots as well
Thank you no bs tutorial
No problem, thanks for dropping a comment
Perfect video....to the point and effective. Thx
Mines got corrosion on it and followed that coil when switched with 3&4.
Thank you
Thanks for the info man... Just what i needed to know
No problem man! Thanks for the comment and feedback!
Well Done video instructions. Thank you! New Like and Subscriber. I have a 2002 TB.
Thank you. Very clear on process, Thanks
Thanks 4 the great video just bought one
nice job! so the pcv valve is in the valve cover? is the pcv replaceable?
I don't believe it has an actual valve. Or if it does I don't think it's replaceable. But I would have to research it to confirm that. Let me know if you find out the definite answer. And thank you for your comment
Why is your little hose on the on the res box and mine is on the intake manifold ???
Erin applebie im not sure. Maybe a design difference
Erin applebie mine is the same as you describe yours.
Man good help thanks for the video👏🏾👏🏾
Thank you for this vid..
How do U OHM it out ?
Great video!!! Thank you!
Thanks man. Like your channel name
@@NoNonsenseKnowHow so as a follow-up. This went very SMOOTH thanks to your video!! BUT...when I started the truck, I had even more misfires. The culprits, 3 of the coils had loose springs that were not screwed into the main body. I went back and pulled all of them and one spring was completely out of the rubber boot and laying next to the spark plug. I took a pic and I’ll try to send it to you. Now it runs like a champ!!
@@aschadel got you, yeah sometimes those aftermarket coils need a good looking over. Glad you got it figured out and it's running good
Thank you! About to do this myself. Do you have any idea if bad coils would cause loss of cruise control?
Yeah if the computer is sensing misfires it made disabled the cruise control. But I'm not sure on that. Let me know how you make out and thanks for the comment
NoNonsenseKnowHow thanks for the fast reply. I’m on an extremely tight budget, do the spark plugs HAVE to be changed right now, or can it wait a little bit?
@@zhale47 no problem. And no you don't have to replace the plugs. You'll probably be fine. However it's certainly a good idea to knock it all out at once. One and done
Will the blinking service engine light go out on its own or does it have to be reset?
Yes it will
If a cyl. Misfire moves from 3 to 4 after you swap those two, does that mean it's just the coil that's the problem? I was hoping it's only that because I read that white smoke can be deeper problem I engine, but I'm praying it's only the coil!
Could b a head gasket
@@genegornick5034 well, it's not white smoke anymore after changing ignition coils. Now it's saying thermostat! Do you still think it's the head gasket?
I tried to order they keep saying they wouldn't fit my trailblazer. Inline 6 . 4.2
They will. And if I'm wrong. I'll PayPal you $20
Great Info 💪🏾💪🏾💪🏾💪🏾💪🏾💪🏾🔧 ing
Great video. Only issue is the part on Amazon says Does Not fit my (06 Envoy 4.2L). I believe this will fit just wanted confirmation.
Yeah it should definitely fit if you have the 4.2 liter. Unless I'm mistaken. But all the ones I've seen are always the same coils
Cool thanks.
It will not fit an 06 I have an 08 and there different
I mean 06 to 09 they are different
Great man!
*GM 4.2L IGNITION COIL 6 PACK : amzn.to/36zaRaH
*OEM DELPHI COIL: amzn.to/34ila1k
*OEM SPARK PLUGS: amzn.to/2Nx3Dx5
*DI-ELECTRIC GREASE: amzn.to/2V56W0l
*ANTI-SEIZE: amzn.to/2FzXuv3
*MECHANICS TOOLS SET: amzn.to/30B7sGW
*TOP SCAN TOOL/CODE READERS: amzn.to/2PQIrEF
What kind of cable is that ?
You talking about the one I had attached the spark plug? It's just a small jumper cable I made out of some old amp power wire. I think it's like 6 gauge
how do I know if my car need coil replace?
You would need to check them. Do you have a misfire code?
I’m having a hard time getting the connector off, how can I get it off?
What seems to be the issue with getting it off? It's kind of hard to answer that question via text
Mine is hard also. You have to pinch super hard and wiggle if it is just it seeming stuck. Needle nose pliers could help. Don't pull on the wires!
My connectors have a white plastic interlock piece. Pull that piece up as far as it goes, and then push the little tab in the center with a probe, or the edge of a flat screwdriver while pulling the piece the rest of the way up and set it aside (or throw it away). Next, squeeze the center top edge (near the wires) of the connector and pull the connector off like in the video.
Hay I have the Square coils were can I get them for cheap
Probably eBay or Amazon. Your coils don't look like the one in this video?
No they don't they look Square
Its a 06 Chevy trail blazer
Great video!
What’s the gap number for spark plug?
.043"
Thank you! I Been trying find that info for while. I bought the ac Delco iridium... they said it was pre-gap but i wanted to make sure they correctly gap. Know I can
I'm trying to use your link to order the coils but it's saying that they are not compatible with my 06 Envoy. It's the only pack I see that looks like what I need
I'm not sure why it would say that. If you have the 4.2 liter it should definitely be compatible.
Found out they changed the coils between 05 and 06
#NoNonsenseKnowHow Oh changing the coils did un-hook the battery
No. Never a bad idea too though
@@NoNonsenseKnowHow Hey thanks for answering back, I got the 6 coil packs from Amazon like was in your video discription box, going to start on it in the morning, thanks again, I am going to Subscribe to your Channel
@@NoNonsenseKnowHow Got A Question I put new coil pack and plug in and miss and everything is gone, well I went to test drive it and with the Air Condition on at a red light the motor idles down low and the check gages light blinks
Not true, just cuz one goes doesn't mean the rest will go
From my experience in the last 10 years when one goes the others are not far behind. Sure maybe they won't go, but I've replaced one coil at a time before and had the customer have to come back when the other ones that ended up going. Which they weren't happy about. Time is money for most people. Of course I would always offer the option to replace just one
Thank you...!!!
Can u change the coil pack without using the dielectric grease
yea
@@NoNonsenseKnowHow ... What about changing the spark plugs and not putting the anti-sieze on them... Is that ok too
yea it'll be fine either way from my experience
@@NoNonsenseKnowHow ... Thats good bcause I cant afford the dielectric grease or the anti-sieze right now
The smaller packs