2001 Pontiac Grand Am won't start

Tiny
REDSPONTIAC
  • MEMBER
  • 2001 PONTIAC GRAND AM
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 90,000 MILES
My car won't start, we have replace the fuel pump, map sensor and throttle positioning and it still won't start.
Sunday, March 21st, 2010 AT 12:46 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Did you have a check engine light come on or has flashed prior to this problem and when was your last tune-up?

Pick your symptom:

**Cranks but no start condition:

Fuel and Spark:
Get a helper disconnect a sparkplug wire or 2 and ground it to the engine at least 3/16 away from ground -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.

**No crank at all/nothing/nada:

Could be the starter, starter relay, clutch switch/park and neutral switch and ignition switch assuming the battery and connections are good.
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Thursday, July 30th, 2020 AT 2:21 PM

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