2007 Hummer h3

Asked by Joe Oct 19, 2016 at 10:29 PM about the 2007 Hummer H3

Question type: Maintenance & Repair

I have a 2007 Hummer h3. I have had a miss and
replaced the coils plugs and injectors. And check
engine light went off.  After three days the light
came back on saying fuel cap or running lean.
While driving rite under 2000 rpm sometimes it
has a stutter. Give it gas and it stops. Also
sometimes after getting gas it seems hard to start.
Give it gas and it cranks but have to keep the rpms
up or it will die. After going it's fine. Any clue to
what is causing this.

2 Answers


clean throttle body and airflow sensor

2 people found this helpful.

The Gas cap must be tighten to at least 3 clicks also check to SEE if the round o ring is in good shape. This cap Works with the emission Spec. The CP Senses this.

2 people found this helpful.

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