rpms jump up and down

35

Asked by 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

10,355

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

1 of 1 people found this helpful.

Your Answer

Pontiac Grand Am Experts

  • #1
    tenspeed
    Reputation
    7,760
  • #2
    John Saffrahn
    Reputation
    1,610
  • #3
    Tom Demyan
    Reputation
    1,520
View All

Related Models For Sale

Used Pontiac Grand Prix
39 Great Deals out of 2,724 listings starting at $1,200
Used Pontiac Firebird
13 Great Deals out of 812 listings starting at $1,900
Used Ford Mustang
767 Great Deals out of 42,668 listings starting at $1,300
Used Chevrolet Impala
598 Great Deals out of 34,726 listings starting at $1,250
Used Pontiac G6
81 Great Deals out of 3,895 listings starting at $1,500
Used Pontiac GTO
8 Great Deals out of 463 listings starting at $5,995
Used Pontiac Bonneville
3 Great Deals out of 516 listings starting at $1,799
Used Chevrolet Malibu
1,258 Great Deals out of 77,877 listings starting at $1,500
Used Chevrolet Camaro
420 Great Deals out of 31,911 listings starting at $2,395
Used Honda Civic
842 Great Deals out of 78,708 listings starting at $888
Used Dodge Charger
450 Great Deals out of 27,920 listings starting at $1,650
Used Pontiac G8
14 Great Deals out of 348 listings starting at $4,900
Used Chevrolet Monte Carlo
14 Great Deals out of 1,353 listings starting at $995
Used Honda Accord
1,046 Great Deals out of 63,028 listings starting at $999
Used Chevrolet Cavalier
3 Great Deals out of 956 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.