1991 Isuzu Trooper starting

Tiny
BASEBALL4LIFE
  • MEMBER
  • 1991 ISUZU TROOPER
  • 6 CYL
  • AWD
  • MANUAL
  • 15,000 MILES
The car wasn't starting unless I compression started it so I replaced the starter and it still won't start, it worked once after I replaced the starter and now wont work again. It still will start if I compression start it
Wednesday, May 14th, 2008 AT 2:29 AM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Let me ask you this, Does it crank over and refuses to start or just won't crank at all nada-
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Wednesday, May 14th, 2008 AT 5:56 AM
Tiny
BASEBALL4LIFE
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  • 1 POST
It doesn't start at all
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Wednesday, May 14th, 2008 AT 10:53 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Is the starter cranking the engine over if so do below

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.

Fuel pump/Pressure Regulator and Injector/s checks out-start checking the ignition system-power to coil, coil/s itself, distributor pick-up, control module, Cam and Crankshaft 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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Wednesday, May 14th, 2008 AT 3:11 PM

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