At times my car revs up and down at a light,after i start it or when it is in park.But still mostly rides very well,what is my problem?
Nov 8, 2008 at 12:32 AM
1985 Cadillac El Dorado Engine
THOMAS REVELL
- MEMBER
- 1 POST
Hi:
Most likely it's the Idle Air Control unit (IAC), or the throttle positioning sensor (TPS). Take it to a nationally recognized auto parts store and have them scan it for codes. Most stores will do it for free, and if there is a stored code, you'll know for sure what to replace.
Joe
Most likely it's the Idle Air Control unit (IAC), or the throttle positioning sensor (TPS). Take it to a nationally recognized auto parts store and have them scan it for codes. Most stores will do it for free, and if there is a stored code, you'll know for sure what to replace.
Joe
Nov 18, 2008 at 2:37 AM
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