1993 Pontiac Grand Prix Want start

Tiny
TYRENWILLIS
  • MEMBER
  • 1993 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 224,000 MILES
Car want start, it drove find then when stop at someone house. And then got ready to leave it would not start. You can hear it truning like it want to start. I change the spark plugs and wires. So want do you think it might be? Thank you!
Monday, July 21st, 2008 AT 4:53 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do below and tell us what's missing fuel or spark we start here

Get a carb cleaner and spray into the carb or the throttle body on an EFI. Did it start and die? If not 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 problem, check the fuel pressure to rule out the 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, distributor pick-up coil, ignition control module, cam and crank sensors-

If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems with compression and valves opening and closing at the wrong time
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Monday, July 21st, 2008 AT 5:03 PM

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