i have a 2003 gran prix gt the car runs great but when its hot out or if i make a few stops the car wont start if i let it sit for a hr or two it starts right up any help would be appreciated thank you

Asked by May 29, 2015 at 07:12 PM about the 2003 Pontiac Grand Prix GT

Question type: Car Customization

i have a 2003 gran prix gt the car runs great but when its hot out or if i make a few stops
the car wont start if i let it sit for a hr or two it starts right up any help would be
appreciated thank you

5 Answers

66,705

Have the fuel pressure checked,sound,s like fuel pump may be getting hot and shutting down,all so check the relay.

1 of 1 people found this helpful.

Ok thx I will get it checked out

68,735

When it refuses to start, check for spark. Sometimes an ignition control module will work perfectly when cold but break down or fail when hot. HTH. -Jim

1 of 1 people found this helpful.
35

Try changing the ECT sensor.

1 of 1 people found this helpful.

Ok thx

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