Stalls at low speeds :(

5

Asked by Sep 02, 2011 at 08:42 PM about the 1991 Pontiac Grand Prix 2 Dr GT Coupe

Question type: Maintenance & Repair

1991 Grand Prix GTP 3.4L V6 DOHC stalls at low speeds. It doesn't happen all the time, maybe once or twice a week. It sputters, RPM guage jumps then it dies and won't start for about 15-20 mins. Changed plugs and wires, cleaned IAC and throttle body but didn't work. Fuel pump, fuel filter and oil pump are all ok. Banging my head against the wall here. No mechanic can figure it out. Been hooked up to computer but no codes.

1 Answer

195

Have you cheked you throttle position sensor? Sound like what mine was doing and that was the culprit. Was about $30 at pep boys and took only a few minutes to install

Your Answer

Add photo

Related Questions

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 4,350
#2 Tom Demyan
Tom Demyan
Reputation 2,950
#3 munron
munron
Reputation 2,290
View All

Related Models For Sale

Used Pontiac Bonneville
3 Great Deals out of 530 listings starting at $1,799
Used Ford Mustang
692 Great Deals out of 44,319 listings starting at $1,500
Used Pontiac Grand Am
3 Great Deals out of 1,159 listings starting at $1,000
Used Chevrolet Camaro
377 Great Deals out of 31,274 listings starting at $2,500
Used Pontiac Firebird
19 Great Deals out of 761 listings starting at $2,995
Used Honda Accord
1,055 Great Deals out of 66,824 listings starting at $1,000

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
13 Great Deals out of 395 listings starting at $2,500
2007 Pontiac Grand Prix For Sale
381 listings starting at $1,850
2006 Pontiac Grand Prix For Sale
5 Great Deals out of 463 listings starting at $2,195
2005 Pontiac Grand Prix For Sale
5 Great Deals out of 363 listings starting at $2,350

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.