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

112,345

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.

4 of 4 people found this helpful.
99,235

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 of 1 people found this helpful.
2,985

any codes?

Your Answer

Add photo

Related Questions

Bonneville

Looking for a Used Bonneville in your area?

CarGurus has 530 nationwide Bonneville listings starting at $1,799.

ZIP:

Search Pontiac Bonneville Questions

Pontiac Bonneville Experts

#1 ticklemedaly
ticklemedaly
Reputation 390
#2 Js08016
Js08016
Reputation 360
#2 dandyoun
dandyoun
Reputation 360
View All

Related Models For Sale

Used Pontiac Grand Prix
25 Great Deals out of 2,829 listings starting at $1,850
Used Chevrolet Impala
554 Great Deals out of 35,454 listings starting at $899
Used Chevrolet Monte Carlo
11 Great Deals out of 1,428 listings starting at $2,400
Used Chevrolet Camaro
373 Great Deals out of 31,271 listings starting at $2,500
Used Pontiac Grand Am
3 Great Deals out of 1,159 listings starting at $1,000
Used Ford Mustang
689 Great Deals out of 44,321 listings starting at $1,500
Used Pontiac Firebird
19 Great Deals out of 761 listings starting at $2,995
Used Buick Regal
175 Great Deals out of 10,504 listings starting at $5,995
Used Chevrolet Malibu
1,118 Great Deals out of 80,272 listings starting at $2,500
Used Buick Park Avenue
408 listings starting at $2,200
Used Buick LeSabre
21 Great Deals out of 1,939 listings starting at $1,588

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.