Question about 2003 Hummer H2

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03 hummer turns off when on a redlight or when it stops idk wut can it be i had the same problem with an o3 silverado so i took it to the dealer nd they charge me 300 just to put some liquid on the gas tank..

Posted by bermudez1986 on

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Anonymous

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  • 137 Answers

Check your air intake if this is loose or getting to much air to make it run too lean it will cause the engine to hesitate or stall.
Also check the MAF Sensor on the air intake it could be going bad so it is an easy fix if this is the problem.
PS never use carb cleaner or wd40 to clean the air intake.. You can buy MAF Sensor cleaner at Auto Zone or Checker Auto Parts stores.
I hope this helps you a little bit.

Posted on Feb 06, 2010

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