1999 jeep wrangler

1999 JEEP WRANGLER
6 CYL • 4WD • AUTOMATIC
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BOBYCURTIS31
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1999 jeep wrangler the other day my jeep wouldnt start after it was running about 30 mins ago. i got it started the next day and when i would put it in gear to go, it would die . it would start, then it got to where it would drive,while driving it it would sputter and back fire. tell me what could be causing this?
Jan 26, 2011 at 1:43 AM
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RASMATAZ
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Check the fuel pressure to rule out a failing fuel pump-start here.
Jan 26, 2011 at 2:25 AM
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BOBYCURTIS31
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i check the fuel pressure on the rail on it was 45psi. what would be the next thing causing it.
Jan 26, 2011 at 5:21 PM
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RASMATAZ
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 75,992 POSTS
Is this running pressure or key on engine off or both??

Next time don't wait for it to cool off-do below imediately

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
Jan 26, 2011 at 10:23 PM