Engine wont idle on its own. What's my next step?

Asked by Jan 20, 2013 at 02:32 PM about the 2002 Pontiac Bonneville SSEi

Question type: Maintenance & Repair

Engine was idling roughly, back and forth from around 700 to 1300 rpm. Replaced the IAC. Smoothed things out
for a day or two but now the engine will not idle on its own. Still starts but wont stay running without depressing the
accelerator.

3 Answers

104,215

I would check air filter if dirty replace. But most likely you have a vacuum leak. Listen for a hissing sound around intake area. Some use ether and lightly spray it around intake and vacuum hoses. If engine idles up when sprayed there is your leak. But use caution using this method.

3 out of 3 people think this is helpful.
92,105

Head over to GAOwnersClub.com - the Grand Am uses the same V6 engines and there's a couple of things to check for your idle speed problem.

1 out of 1 people think this is helpful.
2,785

any codes?

Your Answer

Add photo

Related Questions

Bonneville

Looking for a Used Bonneville in your area?

CarGurus has 654 nationwide Bonneville listings starting at $1,375.

ZIP:

Search Pontiac Bonneville Questions

UK Questions

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

Pontiac Bonneville Experts

#1 ticklemedaly
ticklemedaly
Reputation 360
#2 Js08016
Js08016
Reputation 330
#2 dandyoun
dandyoun
Reputation 330
View All

Related Models For Sale

Used Pontiac Grand Prix
23 Great Deals out of 3,698 listings starting at $800
Used Chevrolet Impala
890 Great Deals out of 35,184 listings starting at $1,700
Used Chevrolet Monte Carlo
18 Great Deals out of 1,673 listings starting at $2,990
Used Pontiac Firebird
17 Great Deals out of 784 listings starting at $2,495
Used Buick LeSabre
13 Great Deals out of 2,248 listings starting at $1,299
Used Chevrolet Malibu
1,125 Great Deals out of 82,058 listings starting at $1,800
Used Pontiac Grand Am
1,629 listings starting at $1,000
Used Chevrolet Camaro
438 Great Deals out of 40,498 listings starting at $3,500
Used Buick Regal
146 Great Deals out of 11,676 listings starting at $1,450
Used Ford Mustang
552 Great Deals out of 42,538 listings starting at $1,699
Used Nissan Maxima
391 Great Deals out of 24,609 listings starting at $999