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GMC Envoy 2002

Tiny
BRAVESFAN48
  • MEMBER
  • 2002 GMC ENVOY
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 95,000 MILES
The engine in my 2002 GMC Envoy seems like working on 5 cylinders only. Could that be spark plugs or something else?
Wednesday, December 1st, 2010 AT 4:08 AM

4 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
It could. Has the check engine light come on?
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Wednesday, December 1st, 2010 AT 4:09 AM
Tiny
BRAVESFAN48
  • MEMBER
  • 3 POSTS
No, I noticed more exhaust smell than usual.
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Wednesday, December 1st, 2010 AT 4:13 AM
Tiny
BRAVESFAN48
  • MEMBER
  • 3 POSTS
Also engine vibrates more than usual.
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Wednesday, December 1st, 2010 AT 4:27 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
If the check engine light hasn't come on, it leads be to think it could be related to the fuel system or even a catalytic converter that may be plugging. Check fuel pressure and the cat to confirm they are both good. If they are, there is a chance that the check engine light may be burned out.

Check those and let me know what you find.
Joe
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Thursday, December 2nd, 2010 AT 12:09 AM

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