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1991 Pontiac Grand Prix Running problems

Tiny
JEREMEY123
  • MEMBER
  • 1991 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 154,000 MILES
The car will run but after a few seconds in gear it dies and doesnt want to start or run for awhile? Also when I put it in gear the engine mounts hit the hood, ive changed the engine mounts.
Saturday, December 26th, 2009 AT 11:01 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
To find out what's wrong check if its fuel or spark problem do below basic stuffs

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it
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Saturday, December 26th, 2009 AT 11:44 PM

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