2000 Jimmy Won't start

Tiny
TBERRY1966
  • MEMBER
  • 2000 GMC JIMMY
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 110,000 MILES
I've been having starting my 2000 jimmy. The fuel pump and filter were changed YESTERDAY. Started and ran just fine when I picked it up. Now SAME THING. Cranks but won't start.
Thursday, November 25th, 2010 AT 11:55 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 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, cap and rotor, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing
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Thursday, November 25th, 2010 AT 11:59 PM

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