2004 GMC ENVOY P0300 RANDOM ENGINE MISFIRE DETECTED

[@KevinNadeau]

Thank you all for helping our channel reach 7,000 SUBSCRIBERS!!! I hope this video is helpful to you. Let me know what part of the world your watching from in the comments below.

[@patrickboughton5313]

NBC at no

[@christophercrawford2736]

I just got done swapping my engine for a used one and I think this video tells me exactly what to look for. I’ve had my hood popped open while working on this and not latched and it’s been raining a good amount here in California recently. I’ll be looking at this first!

[@KevinNadeau]

👍

[@GlynRobinson]

The engine sure is clean! I have a 2003 Chevy S10 4.3L with 125K.

[@KevinNadeau]

Thank you👍

[@BeagleBageler]

I’m gonna need this channel for when I get my license.

[@KevinNadeau]

👍

[@ericadelsflugel7477]

I have a 2004 trailblazer with 230000 miles on it and I'm also having a misfire, but it's intermittent and that's one thing I'll have to check is for moisture. Thanks

[@KevinNadeau]

You have many miles ahead of you with that truck. Good luck tracking down your misfire.

[@Turtle-RR]

@@KevinNadeau they really don't make them like they used to. Rolled my 03 200,000 miles. Now have the 09 with 130.000

[@cace1968]

Hi, Kevin great vídeo thanks. I follow you from Cali Colombia. I have one 2003 Chevrolet Trailblazer 4.2 L6 and your vídeos help a Lot.

[@fsu3784]

This is a common problem with these vehicles. Replace the seal under the hood where your windshield meets the hood.

[@KevinNadeau]

That's the sense I'm getting about this issue. Do you happen to know the part number for the seal?

[@fsu3784]

@@KevinNadeau well it keeps erasing the number for some reason

[@joshc4113]

@@KevinNadeau Hey Kevin did you end up having to replace the valve cover gasket or did changing the seals on the coil packs work in resolving your misfire? I am also having the same issue lol

[@RideOutside]

Great genuine video, subbed. Can’t wait for the 350k update, that’s a good car

[@KevinNadeau]

Thanks!👍

[@jgireby]

What makes a sticker placed on the window a "modification"?

[@KevinNadeau]

It adds 10 hp 😂

[@eligreggsr553]

Thank you for sharing 🙏

[@KevinNadeau]

👍

[@shvanaabdullah6859]

Hello sir, my battery is between 13 and 14. Does it cause problems for my car? My car vibrates especially with the AC on Thank you, for your reply

[@KevinNadeau]

@@shvanaabdullah6859 That voltage should be fine. Have you narrowed down the cause of vibration any? Could be several things.

[@shvanaabdullah6859]

@@KevinNadeau thank you dear 🌹

[@shvanaabdullah6859]

@@KevinNadeau Upon turning on the compressor my car vibrates but I don't think it's a problem with the compressor

[@KevinNadeau]

@@shvanaabdullah6859 Wonder if it’s the motor mounts. My engine had the shakes a while ago and new motor mounts solved the problem.

[@martinlorenzo2300]

friend help me I have a car of the same brand that you are fixing but I changed all the spark plug coils and the same code appears p0300

[@KevinNadeau]

I’ve heard of guys replacing the VVT solenoid and the misfires went away. Have you checked compression on the cylinders? You could also check for vacuum leaks. Best of luck👍

[@ItsLivids]

In my 2007 Acadia I just cleaned the throttle body cause it got backed up and all good

[@nathanz3511]

Hey bud I hadve/had the same issue running ugly I changed the 6 spark plugs then 1coil waiting for the new one to come in. now it won’t start it cranks but won’t start I think I put the plug in to the new coil backwards causing a new problem I don’t know where to start it’s cranking but not starting now

[@phillipbedwell7641]

Yes think it help me lot

[@KevinNadeau]

👍

[@lilgrizz7109]

So did fix it or just temporarily cuz I’m having this problem right now , You didn’t change spark plug aswell right correct?

[@KevinNadeau]

So far its still working fine. I could have also replaces the weather striping on the cowl, but didn't do that. I did not replace the spark plug.

[@lilgrizz7109]

@@KevinNadeau thanks I really hope mines is similar

[@turdbbburgersam4318]

Good video bud, had and have the same problem, gonna go through it again see if I have water build up again

[@KevinNadeau]

👊

[@CarlosGuerrero-pf2iy]

Amén bro 💯🥊😁

[@KevinNadeau]

👍

[@paulinagourley5978]

Also what is a power train.

[@KevinNadeau]

A powertrain is an assembly of every component that puts your car into motion. It includes engine, transmission, driveshaft, axles, and differential.

[@youngerwong204]

Until it rains again

[@paulinagourley5978]

I have this problem. I had everything replaced. But it still didn't fix the problem

[@KevinNadeau]

There are probably more than a dozen things that could cause P0300 code. Did you change the spark plugs?

[@RetroCaptain]

There's a few sensors that become fouled and fail with old age and need replacing or at least cleaning. They are really great engines but cannot withstand a lack of astute maintenance.

[@alexbevan3217]

spray the coils with wd40 to help

[@mslady7316]

That is nice

[@KevinNadeau]

Thanks👍

[@grimreapersbrotherdave2392]

multiple misfire and random are actually diffrent.

[@KevinNadeau]

Thanks for clarifying 👍