1997 GMC Jimmy runs rough

Tiny
GREG5
  • MEMBER
  • 1997 GMC JIMMY
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 130,000 MILES
At start up the engine will sometimes turn a few times before starting and run rough. It shakes at a stop, once on the freeway it runs good.
I have been told the following
engine light does come on when it gets warmed up

i was told that my iec valve may need to replaced

also someone told me my timing belt could be going out

can you please give me the correct steps to take

thank you sirs
greg5
Thursday, December 4th, 2008 AT 8:11 AM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Take the car to any autoparts store and get the codes read.

It could be the IAC, but could also be coolant temp. Or any number of sensors.

If this is the 3.8 or 4.3 it does not have a timing belt.
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Thursday, December 4th, 2008 AT 9:10 AM

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