High idle


Asked by May 27, 2017 at 02:54 PM about the 1991 Oldsmobile Cutlass Ciera 4 Dr SL Sedan

Question type: Maintenance & Repair

My 91 cutlass ciera has a problem with a high idle.
Once you've reached a stop and release the brakes,
without accelerating or hitting the gas pedal the
car will reach a 30mph on its own.

3 Answers


Sounds like a vacuum leak or bad IAC (Idle Air Control) valve. Is the check engine or service engine soon light on? HTH. -Jim


No service engine light.

1 of 1 people found this helpful.

Then check for a faulty IAC. A vacuum leak would trigger the service engine soon light. Also, check for a binding throttle cable that's not allowing the throttle to close all the way. HTH. -Jim

Your Answer

Cutlass Ciera

Looking for a Used Cutlass Ciera in your area?

CarGurus has thousands of nationwide listings and the tools to find you a great deal.

Postal Code:

Oldsmobile Cutlass Ciera Experts

  • #1
  • #2
  • #3
    Tom Demyan
View All

Related Models For Sale

Used Buick Century
7 listings
Used Ford Mustang
984 listings starting at $3,500
Used Buick Regal
3 Great Deals out of 247 listings starting at $6,495
Used Ford Taurus
30 Great Deals out of 318 listings starting at $4,988

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.