When the heat is on, or the a/c, blowing a lot of air, it'll stall out...turn off at light or sign. What is the cause

20

Asked by Apr 22, 2015 at 12:09 AM about the 2004 GMC Envoy 4 Dr SLE 4WD SUV

Question type: Maintenance & Repair

I need to know if it's something major and who would I take to look at it and not get
charged a ton

8 Answers

58,405

Possible,vacume leak issue,have the vacume tested,if you have no engine light on.

2 out of 2 people think this is helpful.
20

The eNine light has been on

1 out of 1 people think this is helpful.
58,405

If engine light is on,go have it scanned,but IMO,it sound,s like the throttle position sensor may be bad,causing it not to idle under load.

1 out of 1 people think this is helpful.
20

Is that typically expensive and a lot of work?

58,405

Not really that bad,TPS is probably 70 dollar,s and labor 30 minutes,but that said go have it scanned to be sure this is the issue.

1 out of 1 people think this is helpful.
20

Thank u

1 out of 1 people think this is helpful.
58,405

You are welcome.

1 out of 1 people think this is helpful.

Try cleaning the throttle body and throttle body plate.

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