2003 Hummer H2 "car stalls stops lights cold" Questions

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stalls at stop lights and gets difficult to restart changed cam phasers and runs great when cold. When it warms up it stalls at stop lights and gets difficult to restart have vechicle code scanned bad

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car runs good. It stalls alot and have to keep starting it. My check engine light is on and sometimes it blinks so, have to shut car off and start it again. On warm days it runs good and no problem's.

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...car stalls out. This only happens in the cold. She lets it warm up first, then backs out of the driveway, puts it in drive and thats when it stalls. It starts right back and she is able to make it to ...

...stalls) but when does it stall, under what conditions. hot or cold engine. only at stop lights hot. or>???? when an engine is cold the RPM is very high (iAC device) and it will not stall cold , if ...

...stalls when i stop at lights or stop signs. when it's warm out or when the engine is up to temp it will stall quite often when I stop at lights. doesn't seem to do it in cold weather 3 possibilites , ...

...and then drops and stalls. even after she warms up she idles really rough at stop lights/signs. and after I put her in park she will stall Mass air flow sensor. Can be cleaned before you buy a new ...

Question about Hummer H2

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...stops engine performs fine when cold after reaching normal operating temp will stall at stops the engine stall is proceeded by what feels like a missing spark plug? do u have a check engine light ...

...car it shakes really bad and turns off. so I goose the throttle alittle and it idles at 2k-2.5k rpms then drops and stalls, the exhaust smells a lot like gas. even after she warmed up when I came to ...

Question about Hummer H2

1 Answer

car stall? Is it hot or cold when it stalls? Is it after servicing/refueling when it stalls? Have you done any modifications? Any extra information you give can help us find a solution to your problem

My Hummer H2 2003 model had a problem starting when its warm. Like when I start it in the morning, its normal, but after driving it for a few minutes and the engine is warm, I had difficulty starting ...

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