1997 Chevy S-10 does not idle surges

1997 CHEVROLET S-10
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COLEJ3015
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  • 1 POST
Engine Performance problem
1997 Chevy S-10 Two Wheel Drive Automatic 99000 miles
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obd11
Feb 23, 2008 at 2:26 AM
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MASTERTECHTIM
  • ✓Experienced Mechanic
  • 4,750 POSTS
can you elaborate
Feb 23, 2008 at 2:30 AM
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MERLIN2021
  • ✓Experienced Mechanic
  • 17,250 POSTS
You may have a vacuum leak, get a can of spray gumout, spray the vac lines and maniflod area, when the idle changes, youve found the leak! You want the engine running and spray on the outside but do direct the stream onto the hoses, if it is a vacuum leak, the engine idle will change speed, then you have detected a leak, repair the vacuum leak and see how it runs!
Also check the idle air control, it's bolted to the throttlebody.
Feb 23, 2008 at 2:30 AM
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