I have a 2003 Envoy and the motor is a 4

Tiny
ANONYMOUS
  • 2003 GMC ENVOY
  • 131,900 MILES

I have a 2003 envoy and the motor is a 4.2. When I turn my defroster on the motor idles way down and sometimes dies

Monday, March 25th, 2013 AT 5:26 AM

1 Reply

Tiny
ASEMASTER6371
  • EXPERT
  • 25,554 POSTS

Sounds like a idle air control valve that is not functioning.

Roy

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Monday, March 25th, 2013 AT 10:42 AM

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