How to fix rough idle on Hummer H3 with inline 3.5L

How to fix rough idle on Hummer H3 with inline 3.5L

How to fix rough idle on Hummer H3 with inline 3.5L

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Daniel Madden says:

Good video my 07 h3 vibrates when idling I I put in lucas fuel treatments seemed to have more power. Still the truck vibrates with rough idle steering wheel feels like a vibrator. Also how do you keep your engine so clean it looks great. I dont know what engine cleaner to use. Do you clean often.

Daniel Madden says:

Good video my 07 h3 vibrates when idling I I put in lucas fuel treatments seemed to have more power. Still the truck vibrates with rough idle steering wheel feels like a vibrator. Also how do you keep your engine so clean it looks great. I dont know what engine cleaner to use. Do you clean often.

William Crosthwaite says:

So glad I did this with minimal effort. Very informative. Remember to disconnect the battery before you begin. Good luck!!

DraccoKnightblade says:

when you did this, did you have to do a 're-learn' cycle after cleaning the throttle body? I keep hearing that, that is something that happens with GM's mainly after cleaning a TB. Let me know?

Matt Curry says:

I'm really hoping this could solve my h3 problem…. You described the Hummer as "farting" at times… I tend to get this farting/ shudder imidiatlety after accelerating… Too really feel it I just hit the gas real quick while in park and let go.. The whole car shakes a little bit in what I would call a kickback or shudder…it's not worrisome but it's definitely annoying once you notice it is there.. Before trying this method I wanted to get your opinion on the symptoms I just laid out for you… Hopefully your still active.. I know this videos a couple of months old! Thanks!

HaVoC12UnLeasheD says:

On my 2006 h3, Had a p0300 code, cleared and a day later got a p0305 both misfire codes (0300- random cyl) and 0305 (#5 cyl misfire) replaced with brand new air filter and cleaned maf sensor, run greats on idle, still stutters a little on stop lights but nothing major, will be cleaning the throttle body as most forums say it's the solution to that problem.

Eric Chaverria says:

Is it still idling fine now later on?

BrendanMaxwellMusic says:

Much better

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