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

9,605

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

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Pontiac Grand Am Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Pontiac Grand Am Experts

#1 tenspeed
tenspeed
Reputation 7,340
#2 John Saffrahn
John Saffrahn
Reputation 1,510
#3 Tom Demyan
Tom Demyan
Reputation 1,320
View All

Related Models For Sale

Used Pontiac Grand Prix
25 Great Deals out of 3,701 listings starting at $879
Used Pontiac G6
80 Great Deals out of 5,082 listings starting at $1,295
Used Pontiac Firebird
17 Great Deals out of 776 listings starting at $2,495
Used Ford Mustang
577 Great Deals out of 42,797 listings starting at $1,699
Used Chevrolet Impala
935 Great Deals out of 35,377 listings starting at $1,700
Used Pontiac GTO
7 Great Deals out of 477 listings starting at $5,500
Used Chevrolet Camaro
445 Great Deals out of 40,684 listings starting at $3,500
Used Honda Accord
984 Great Deals out of 75,076 listings starting at $899
Used Chevrolet Malibu
1,186 Great Deals out of 82,906 listings starting at $1,800
Used Toyota Camry
1,215 Great Deals out of 96,011 listings starting at $1,250
Used Dodge Charger
497 Great Deals out of 30,244 listings starting at $2,275
Used Ford Taurus
311 Great Deals out of 21,185 listings starting at $1,774
Used Pontiac Bonneville
8 Great Deals out of 644 listings starting at $1,375
Used Pontiac G8
20 Great Deals out of 462 listings starting at $5,800
Used Chevrolet Cavalier
1,313 listings