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Check engine light; engine faultering

Tiny
SOPHIA-10
  • MEMBER
  • GMC JIMMY
My SUV is a 2000 Jimmy SLT with 89,000 miles; 4.3 engine v-6; 4 wheel drive.
Check engine light comes and goes. Jimmy uses excess gas; chokes, then runs well.
So far we have replaced fuel filter, fuel pump, battery, catalytic converter (and pre-catalytic converter was removed and replaced with pipe only).
Prior to these problems, Jimmy had few needs.
Any ideas?
grandma Lucy
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Sunday, October 14th, 2007 AT 6:00 PM

2 Replies

Tiny
CHEVY22
  • MECHANIC
  • 1,375 POSTS
Hey there, if you want to fix it right the first time have the codes checked, even if the light isnt on there should be history, sound like an 02 sensor possibly

good luck let us know

jim
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Sunday, October 14th, 2007 AT 7:24 PM
Tiny
SOPHIA-10
  • MEMBER
  • 2 POSTS
Jim,
Thanks for your message. Since the O2 sensor was changed, the engine runs better, but the light is still on and it hesitates to start. Will have it checked again for more codes. This is getting very expensive. Encouragement?
Lucy
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Tuesday, October 23rd, 2007 AT 4:33 PM

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