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1997 Oldsmobile Bravada Cranks yet wont start despite fixes

Tiny
WASTEAWAYBLUES
  • MEMBER
  • 1997 OLDSMOBILE BRAVADA
Engine Mechanical problem
1997 Oldsmobile Bravada 6 cyl All Wheel Drive Automatic

I recently had this issue where the car would crank yet it would not turn over. Took to the mechanic and they replaced the coil and crank sensor. And now it continues to have the same issues. The battery is under a year old. The electrical is good with no faults that I can find. Car does not start with a jump either. Vacuum lines are intact. I have run out of ideas as to where to look for problems to fix. Any suggestions?
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Saturday, March 20th, 2010 AT 2:26 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
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.
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Saturday, March 20th, 2010 AT 5:16 PM

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