rpms jump up and down

35

Asked by Mike Jul 23, 2010 at 04:29 PM about the Pontiac Grand Am

Question type: Maintenance & Repair

when my car idles the rpms go down and back up and you can feel it and its worse when the a/c is on is that the altantor or a misfire?

1 Answer

21,215

What you are describing is a tell tale sign of the IAC (Idle/Air Control) valve going bad..

5 people found this helpful.

Your Answer:

CarGurus Experts

  • #1
    tenspeed
    Reputation
    10,970
  • #2
    james sparrow
    Reputation
    2,360
  • #3
    John Saffrahn
    Reputation
    2,280
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Pontiac Firebird
18 listings
Used Toyota Camry
50 Great Deals out of 1,096 listings starting at $2,500
Used Pontiac G6
18 listings starting at $3,990
Used Pontiac G8
1 listing

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. Content will be removed if CarGurus becomes aware that it violates our policies.