99 Jimmy wont start

1999 GMC JIMMY
6 CYL
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CNAMOMMA
  • MEMBER
  • 2 POSTS
I went to leave this morning and try to start truck it wont start it would turn over but not start, i thought it was no gas due to the gas gauge has been broken put gas in didnt work
May 25, 2011 at 2:29 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Do below to determine if its a fuel or spark problem

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.
May 25, 2011 at 2:31 PM
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CNAMOMMA
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tyvm batters dead ima wait on a friend to come over later and help....have a good day
May 25, 2011 at 2:43 PM
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