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1998 Chevy S-10 Erratic Idle

Tiny
EM98SS
  • MEMBER
  • 1998 CHEVROLET S-10
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 78,888 MILES
I would like some help please, my 98 S10 idles erraticly, but can't find any vacuum leaks, please help.
Tuesday, October 27th, 2009 AT 12:04 AM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Try cleaning out the idle air control valve and see what happens
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Tuesday, October 27th, 2009 AT 12:14 AM
Tiny
CHRISKY
  • MEMBER
  • 1 POST
Its probably in your ecm (computer) telling you tps (throttle position sensor) to set the idle high. My s10'idle was up and down so bad that it caused an exhaust leak. The temp fix is to unplug the tps remove it and set the idle manually. And dont plug it back in. Your idle will stay constant.
The only thing is in winter you may have to manually bump it up.

Best thing is to get an ecm replacement. It will have to be flashed to your vin costs about 75 buck hope this helps
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Thursday, June 27th, 2013 AT 9:38 AM

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