Car cranks but dont start

Tiny
SHANTARENEE
  • MEMBER
  • 2003 SAAB 9-5
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 135,000 MILES
My Saab Aero 2003 9-5 cranks but dont start? What could be wrong?
Thursday, February 24th, 2011 AT 2:38 AM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
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, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if so, 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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Thursday, February 24th, 2011 AT 4:55 AM
Tiny
MNTHNY4
  • MECHANIC
  • 612 POSTS
GET YOUR ENGINE CRANKSHAFT POSITION SENSOR REPLACED, GOOD LUCK.
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Monday, February 28th, 2011 AT 9:39 PM

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