1994 Pontiac Grand Prix Ignition

Tiny
YALSH
  • MEMBER
  • 1994 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 160,000 MILES
1994 Grand Prix Ignition Problem?
I have the 3.4 DOHC motor. When I crank the car on a hot day, will not start. When left cooler for a bit (30 minutes), the car runs, but does not drive far. The car will shut off while I'm driving. I thought Crank Position Sensor, but that should generate a Check Engine Light, which I don't get.
(Light bulb is working, check engine light does come on when another sensor is pulled)
(Didn't replace the Crank Pos Sensor)

My low coolant light is flashing a lot, but that's just the sensor I believe. I check the coolant tank and there's plenty coolant.

I would guess fuel pump, but I poked the fuel line opening with a flat screwdriver and alot of fuel came out, alot to even put a tester on.

I'm not entirely sure what this problem is. You can hear the starter cranking, just no spark. Happens when the car is hot, just driving.

On a cooler day, I can drive the car all day with NO problems anywhere. Starts up, drives all day. I drove for three hours straight nothing.

On a hot day, I wont get a half hour in before the car shuts off. No codes, hard to diagnose.

Any help or ideas would be appreciated Thank You!
Monday, June 7th, 2010 AT 1:25 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
You can hear the starter cranking, just no spark if mean no spark from the ignition best check and test the crankshaft position sensor even with no CEL and also the ignition control module to include the coils
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Monday, June 7th, 2010 AT 1:36 AM

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