1994 Jeep Cherokee mama mia!!!!! por favor HELP ME!!!!!!

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JUL854
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Engine Mechanical problem
1994 Jeep Cherokee 6 cyl Two Wheel Drive Automatic

My jeep wont turn over it cranks good, iv'e changed the fuel pump, crankshaft positioning sensor, checked fuel pressure, battery's fine.
Dec 9, 2009 at 3:25 PM
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RASMATAZ
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My jeep wont turn over it cranks good-Do below and get back with some results

Get a helper 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 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
Dec 9, 2009 at 3:32 PM
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JUL854
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it has a spark and the fuel pressure seems to be fine. could there be another solution? thanks for the quick reply
Dec 10, 2009 at 2:01 PM
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RASMATAZ
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Are the fuel injectors pulsing providing fuel to the cylinders
Dec 10, 2009 at 6:20 PM
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JUL854
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yes they are. my car turns on but then it automatically turns off after a second
Dec 11, 2009 at 2:00 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Power the coil positive terminal from the battery positive post and tell me what happened-Doing this bypasses the ignition switch. If it contnues check the fuel pressure to rule out the fuel filter and fuel pump.
Dec 11, 2009 at 2:49 PM
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