What is causing my rpm' s to drop in my 02 grand prix GT? It will run good then I'll stop at a light then it suddenly stalls

Asked by Apr 08, 2015 at 11:02 AM about the 2002 Pontiac Grand Prix

Question type: Maintenance & Repair

2 Answers

39,125

Bad or dirty IAC. (Idle Air Control) valve. When it stalls out, can you smell gas under the hood? A leaky injector could be causing your stall issue also.

1 of 1 people found this helpful.

A vacuum leak can and will cause this. Open hood and listen for a hissing noise if it will idle long enough. Rubber hoses break down and crack over the years causing cracks and leaks.

Your Answer

Add photo

Related Questions

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 4,270
#2 Tom Demyan
Tom Demyan
Reputation 2,870
#3 munron
munron
Reputation 2,210
View All

Related Models For Sale

Used Chevrolet Impala
591 Great Deals out of 34,068 listings starting at $899
Used Pontiac Bonneville
4 Great Deals out of 511 listings starting at $1,799
Used Chevrolet Monte Carlo
20 Great Deals out of 1,419 listings starting at $1,995
Used Pontiac Grand Am
1,183 listings starting at $1,599
Used Ford Mustang
543 Great Deals out of 45,845 listings starting at $1,999
Used Chevrolet Malibu
1,062 Great Deals out of 77,909 listings starting at $1,500
Used Honda Accord
946 Great Deals out of 77,735 listings starting at $899
Used Nissan Maxima
323 Great Deals out of 24,380 listings starting at $999
Used Chevrolet Camaro
242 Great Deals out of 31,193 listings starting at $369
Used Pontiac Firebird
4 Great Deals out of 768 listings starting at $1,791
Used Nissan Altima
1,156 Great Deals out of 79,666 listings starting at $500

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
18 Great Deals out of 431 listings starting at $1,995
2007 Pontiac Grand Prix For Sale
3 Great Deals out of 397 listings starting at $4,299
2006 Pontiac Grand Prix For Sale
6 Great Deals out of 462 listings starting at $1,600
2005 Pontiac Grand Prix For Sale
330 listings starting at $1,800

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.