SPONSORED LINKS

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
  • 109,700 POSTS
It could. Has the check engine light come on?
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, December 1st, 2010 AT 4:09 AM
Tiny
BRAVESFAN48
  • MEMBER
  • 3 POSTS
No, I noticed more exhaust smell than usual.
Was this
answer
helpful?
Yes
No
Wednesday, December 1st, 2010 AT 4:13 AM
Tiny
BRAVESFAN48
  • MEMBER
  • 3 POSTS
Also engine vibrates more than usual.
Was this
answer
helpful?
Yes
No
Wednesday, December 1st, 2010 AT 4:27 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 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
Was this
answer
helpful?
Yes
No
Thursday, December 2nd, 2010 AT 12:09 AM

Please login or register to post a reply.

Related Spark Plug Content

Sponsored links