How to Replace 2004 GMC ENVOY SPARK PLUGS 

Have same car had a knock then just stopped im thinking oil pump ? what do you think

@@ronaldcordromp6056 That's a possibility. Check oil level and pressure. To check true pressure, you'll need to hook up a manual gauge.

@@KevinNadeau yep thats what im ganna do first, did you get those knocks on yourr gmc seams im like seeing it alot no one seams to know what it is

@@KevinNadeau Thank you

The fifth cylinder spark plug where you would gap was completely gone I went with ACDelco plug 41-103 factory replacement still has misfire

That's awesome! I'm glad the video helped 👍

@jose F. Godina do you have a problem with the suspension on the front end of your Envoy. I have a 05 as well. And it has been nothing but a pain and money 💰 trap

@@theallamericannightmare4163 just minor issues with it. But got that fixed. Hopefully yours isn't too bad.

Thanks for watching!

Thank you

Thank you! I'm flattered to be compared to 1A Auto's channel. The back glass button isn't that difficult. Let me know if you have any questions 👍

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Thank you 👍

Thank you👍 I appreciate your support

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Absolutely 👍

👍 Thank you!

Congrats on your new Envoy. I have a lot of other How-To videos on my channel related to this truck that you may find useful. And thanks for the info on my audio. I have since bought a new microphone for filming.

@@KevinNadeau You can count on me to check them out. Hopefully you have one on the back hatch, GMC Envoy XUV. When you open the hatch from left to right it won't stay in the open position. I will check out your over videos, thanks again.

Thank you. I appreciate the support👍

Glad the video helped. I have never used Bosch plugs.

You're welcome! You might need to replace the valve cover gaskets. There are gaskets around each of the plug wells. Good luck with your truck.

Thank you. I usually wipe down the motor with a dry towel when I do oil changes.

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Thank you 👍

Thank you 👍

You're welcome 👍

Thanks for the support Jim! I'm sure you'll have many good years ahead with your Trailblazer. Let me know if there is anything I can answer for you. As far as the check engine light, I'd suggest investing in an inexpensive OBD2 scan tool like this one amzn.to/37rtmiz (and go ahead and pay for the premium version of the Torq Pro app, well worth it IMO).

@@KevinNadeau Already have an obd. it helped me diagnose the code for the work I needed to do. was getting p0014. I changed the camshaft sensor first. Check engine still came on so moved to the vvt solenoid which corrected the issue. Saved enough on repairs it justifies upgrading to the pro version of torque :-)

You should change them according to the manufacturer’s recommended intervals

Thank you. I think I was using a 6 inch extension and maybe a 3 inch too.

Here's a good video to check out ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-itRXB7MHjX4.html

I believe so👍

How do I get the spark plugs out without breaking if they are stuck in there

@@crystalprice4819 Sorry, I haven't run into that issue yet. Do a search on YT and see if anyone can offer some ideas. I'd be interested to know how it works out for you. P.S. I might would try spraying a little penetrating oil in the plugs wells and let it soak for a while.

I had that happen to me once. Turned out to be a poor coil pack connection.

As far as I know yes👍

I don't remember if my plugs had the dots or not. I bought mine from a local auto parts store though.

I have always read that these trucks like (and were designed for) the iridium plugs. That's all I've ever used in mine.

Should be pre gapped, but I would check them

put the socket and extension in the plug well first, then connect the wrench.

Hope new plugs fix your misfire

Because they worked just fine. No misfires were detected.

@@KevinNadeau I have a 2008, mine seems to be missing so not sure if just plugs will solve it but its the first thing to try. I have the coils as well but figure if I put them both in I won't know which was needed. The coils are kind of odd as well price wise. I bought mine off Amazon and some that were listed would cost as much as much as a whole set. Any thoughts?

Thank you. I’ll wash my engine bay every so often. Are you talking about the washer fluid reservoir?

@@KevinNadeau it's under the air take

@@KevinNadeau How you wash yr engine bay? I wanted to ask you another question. In a manual book it say to use 41-981 spark plug AcDelco. Is it the same as using the spark plug 41-104 I think you used

@@KevinNadeau thank you ,you got it right.

@@beckymc6178 The 41-981 plugs were discontinued and the 41-103 plugs are the replacements.

It’s not too difficult

Ok ty

It’s a little tight, but I had no problem with no. 6

@@KevinNadeau HEY.... Thanks for the reply. I'm having a known misfire issue on #6 and have heard it could be tough getting it out. On the TB's and envoys the gasket that seals the hood against rain, gets pinched, or maybe cut?, but it fails, and a little water over time will puddle around coil area, or into plug cavity. Just an FYI in case you hadn't head about that. When I seen #6 wasn't filmed on your vid, I thought maybe the people crying wolf were correct about this one. I had even read about, rigging up (ruining. lol) a tool to get in there? Now I'm wondering if anything about the envoy or TB-(mine) are different in the firewall form, or I have just previously stumbled across several "vice grip mechanics" Never the less Good video, with clear instructions. I've only used a shop a couple times in my life (54) and that was on things I would just rather pay, because of the hassle of doing them, so this really isn't anything, as I have owned some junk when I was younger, and also built Bottom up, top down and dropped a 427 in a 87 Buick regal that never lost in a town of 40k. (senior year HS) For a few years now, I take some time and look through videos, before I do anything really, and see what issues may arise, grab a fist full of exact socket sizes, etc. But the little techniques you find people do is where the GOLD Is (IMO). Last month I swapped transmissions on my daughters car. After watching a video, you can see that the tail end has to go up quite a bit, once it is separated, and low enough to allow that torque converter to possibly slide off. 9/16 angled box end wrench held to bell housing, along with original bolt + washer, with angle leaning wrench towards converter tight. These little; !OF COURSE! findings are great. I'll come back and give you a sub, and check out some more of your videos. Thanks again for your reply. Man I get text chatty when talking about anything with engines or legs. Lol. Not knowing your audience, throw me a peace sigh if you would like me to edit that last analogy. He.. he. np.

@@Thesaurcery4U2C my only issue with water getting into the plugs was on no.4 plug. It’s right beneath the drip edge of the cowl. I appreciate your thoughts and comments. Be well! 👍

@@KevinNadeau Right on. You as well. 🤙

Sure am. I have about 302k miles on it👍 and still running strong.

That is a good point. My service manual calls for a plug gap of 0.05 inches with AC 41-965 plugs. However, the new plugs (AC 41-103) come gapped from the factory at 0.04 or 0.043 and you shouldn't need to regap them.

It wasn't bad for me. Just put the socket extensions in first, then attach your driver.

@@KevinNadeau thanks that one had me scared great vid

I believed they are gapped from the factory, but it's always a good idea to check👍

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