Hard starting when warm

Asked by Oct 04, 2012 at 12:17 PM about the 2001 Pontiac Grand Prix GT

Question type: Maintenance & Repair

2001 pontiac grand prix gt, always starts good cold but sometimes when warm acts like its flooded?

4 Answers

1,535

it might be your fuel pressure regulator has gone bad or the hose going to the MAP (manifold air pressure sensor) may be broken

5 people found this helpful.
205

I would check the idle air control valve (IAC).

4 people found this helpful.
815

could be leaky injectors,

1 people found this helpful.
10

Well I have a 2000 grandprix gt and it would not start after warm I change the t ps sensor idle air control map sensor low coolant sensor low oil level sensor crank sensor change them all my self did not solve problem with warm starting so I took my car put it on computer it was the ingnition control module after they told me problem went home hook it up myself problem solved starts any time now the icm is under you're coil packs and is common problem for grandprix

1 people found this helpful.

Your Answer:

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 1,779 nationwide Grand Prix listings starting at $800.

ZIP:

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,720
  • #2
    Tom Demyan
    Reputation
    3,300
  • #3
    munron
    Reputation
    2,840
View All

Related Models For Sale

Used Chevrolet Impala
431 Great Deals out of 25,967 listings starting at $950
Used Pontiac Bonneville
3 Great Deals out of 326 listings starting at $1,900
Used Chevrolet Monte Carlo
4 Great Deals out of 954 listings starting at $2,950
Used Pontiac Grand Am
726 listings starting at $1,900
Used Ford Mustang
256 Great Deals out of 38,498 listings starting at $1,350
Used Chevrolet Camaro
240 Great Deals out of 27,311 listings starting at $2,077
Used Chevrolet Malibu
570 Great Deals out of 52,308 listings starting at $1,550
Used Pontiac Firebird
5 Great Deals out of 679 listings starting at $4,700
Used Buick Regal
86 Great Deals out of 3,948 listings starting at $5,300
Used Nissan Altima
737 Great Deals out of 66,542 listings starting at $1,000

Used Cars For Sale

2007 Pontiac Grand Prix GT For Sale
48 listings starting at $2,000
2006 Pontiac Grand Prix GT For Sale
41 listings starting at $1,495
2005 Pontiac Grand Prix GT For Sale
3 Great Deals out of 78 listings starting at $1,500

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.