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1990 Chevrolet Beretta High rev idle

Tiny
LIVED
  • MEMBER
  • 1990 CHEVROLET BERETTA
  • 3.1L
  • V6
  • FWD
  • AUTOMATIC
  • 107,000 MILES
Eratic high reving idle like pistons want to pop out of engine with a kind of chanking sound
Tuesday, July 21st, 2015 AT 4:38 AM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Chanking sound? Lol. Try cleaning throttle plate on both sides and iac hole with choke cleaner then look for a vacuum leak like hose off broken/etc. One that likes to break is large one on top of throttle body. Then finally scan for codes if nothing else is found.
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Tuesday, July 21st, 2015 AT 6:04 AM
Tiny
LIVED
  • MEMBER
  • 2 POSTS
Cleaned throttle body and plate and iac, checked for broken vacuum lines everything under hood looks good Cant check codes because battery was disconnected and there is no drive time after reconnection of battery I appreciate your opinion and advice thankyou
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Tuesday, July 21st, 2015 AT 11:58 AM

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