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1992 olds Achieva s

Tiny
DAVID
  • MEMBER
  • 1992 OLDSMOBILE ACHIEVA
  • 4 CYL
  • FWD
  • AUTOMATIC
1992 olds achieva s runs good but sometimes starts misfiring. I just put new wire on, run good when going down the highway when you come to fast slow down or stop runs bad
Saturday, December 18th, 2010 AT 7:47 PM

2 Replies

Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Is there a check engine light on? If not, then your problem is most likely the idle air control valve, could be dirty or just faulty. I would do a thorough cleaning of the throttle body and IAC. And replace if necessary, you should be ok after that. The I believe the iac is not adjusting as you remove your foot from the gas to the brake to slow down or turn a corner.
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Tuesday, December 21st, 2010 AT 4:43 PM
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
https://www.2carpros.com/articles/how-to-tune-up-a-car-engine
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Tuesday, December 21st, 2010 AT 4:46 PM

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