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2000 SAAB 9-5 intermittant start problem

Tiny
HAJJISSA
  • MEMBER
  • 2000 SAAB 9-5
Electrical problem
2000 Saab 9-5 4 cyl Two Wheel Drive Automatic

Sometimes car won't start, when engine warm. If left for a while (increasingly longer period - now 45mins) will start again without difficulty. This doesn't occur for some time and then reappears again.
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Monday, August 24th, 2009 AT 5:15 AM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Sometimes car won't start,

Next time it refuses to start don't wait -check if its a fuel or spark problem-do below

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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Monday, August 24th, 2009 AT 5:54 AM
Tiny
MNTHNY4
  • MECHANIC
  • 612 POSTS
U need a crankshaft position sensor if starter motor turns engine over, if no crank then u will need transmission range switch, located on top of transmission where shifter cable is connected.
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Tuesday, October 6th, 2009 AT 1:33 PM

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