High idle

Asked by May 06, 2016 at 04:03 PM about the 1992 Buick Skylark Base Sedan

Question type: Maintenance & Repair

My car was having problems with high idle
and the speedometer would only work once
in a while. I just replaced the ECM and
everything is working again all except the
high idle. When I start the car it runs at 3000
rpm and when I drive it around it ildes at
2100 rpm. I have no vacuum leakes
anywhere. Please help.

4 Answers

11,380

check for codes. google, "how to read gm obd1 codes" could be throttle position sensor or idle air control valve.

It's got a new idle air control valve and the service engine light is not on. Could a blown donut gasket cause the high idle?

11,380

Not sure what you mean by "donut gasket", but check for codes whether the light is on or not. Try cleaning the throttle body.

11,380

It also occurs to me that since you replaced the ecm, you may have to do an "idle relearn procedure" google it for your gm car.

Your Answer

Add photo

Related Questions

  • High idle 4 answers

    My car was having problems with high idle and the speedometer would only work once in a while. I just replaced the ECM and everything is working again all except the high idle. When I start the ca...

    1992 Buick Skylark Base Sedan

    -

    Maintenance & Repair

  • 97 Buick is have Idle issues? 2 answers

    My 97 Buick Skylark doesn't idle correctly. It acts as if it wants to die but then acts like it wants to take off in the same second. I have to slowly hit the accelerator so it will take off normally...

    1997 Buick Skylark Custom Sedan

    -

    Maintenance & Repair

  • What might be causing a loss of power during engine warm up on 90 Skylark 3.3 1 answer

    On a cold engine, starting out from stop feels ok until after trans shifts to 2nd gear then a slight loss of power occurs for a split second. Moments later it happens again. And sometimes a third time...

    1990 Buick Skylark Gran Sport Coupe

    -

    Maintenance & Repair

  • engine knocking 2 answers

    when i rev up my car i can hear a loud knocking when the car is in idle you cant hear the noise only when i rev it up any help thanks

    1972 Buick Skylark

    -

    Maintenance & Repair

  • twin cam engine shakes 1 answer

    I have a 1996 Buick Skylark 2.4L twin cam engine when I start my car my engine shake when I idle it up or put in gear it stalls.I replace the spark plugs to call Pat I replace the bwd sensor I eve...

    1996 Buick Skylark Custom Coupe

    -

    Maintenance & Repair

Skylark

Looking for a Used Skylark in your area?

CarGurus has 92 nationwide Skylark listings and the tools to find you a great deal.

ZIP:

Search Buick Skylark Questions

Buick Skylark Experts

#1 GopherTEFT
GopherTEFT
Reputation 160
#1 Js08016
Js08016
Reputation 160
#3 tennisshoes
tennisshoes
Reputation 100
View All

Related Models For Sale

Used Chevrolet Camaro
243 Great Deals out of 31,194 listings starting at $369
Used Ford Mustang
541 Great Deals out of 45,846 listings starting at $1,999
Used Pontiac Firebird
4 Great Deals out of 768 listings starting at $1,791
Used Buick Regal
131 Great Deals out of 11,077 listings starting at $2,999
Used Buick Riviera
118 listings
Used Chevrolet Corvette
149 Great Deals out of 20,684 listings starting at $3,995
Used Buick LeSabre
19 Great Deals out of 1,920 listings starting at $1,000

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.