2000 pontiac grand prix will crank but not start, have replaced fuel pump, fuel filter, no codes

10

Asked by Oct 09, 2016 at 10:45 AM about the 2000 Pontiac Grand Prix GTP

Question type: Maintenance & Repair

Would start stall out at various times, hard to start various times, replaced fuel
pump, filter, replaced throttle sensor mass air sensor, etc. i have no idea of
where to go next.

4 Answers

70,215

Your GTP (Supercharged) model has a fuel pump resistor behind the battery in the passenger's side fender. These frequently burn out. Does the fuel pump run for a few seconds when you turn on the key (but don't crank it)? If not or if you have poor fuel pressure that resistor may be the culprit. HTH. -Jim

10

Fuel pump runs and engine turns over, doesn't catch & start. I apologize, I hit wrong thing it is a GT, not a GTP, is the fuel pump resistor in same position in the GT model, & will that peticular issue show no code when scanner is hooked up? Thank you for answering, We are at a loss, & need our only transportation up & running, please

1 of 1 people found this helpful.
70,215

The GT doesn't have the resistor. Will it run a few seconds if you spray starting fluid down the throttle body? If so it's a fuel problem. Have you checked the crankshaft position sensor? They're troublesome. HTH. -Jim

1 of 1 people found this helpful.
185

Could be problem with your injectors. If one shorts out, it disables 3 injectors. Stock injectors have been found to be defective. I replaced mine with replacement, non-GM, injectors and solved the problem.

1 of 1 people found this helpful.

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