1998 jeep cheokee no fire or fuel,but cranks over?

1998 jeep cheokee no fire or fuel,but cranks over?
ok heres the deal started two weeks ago motor cranks over no fuel, or fire, also fuel gauge don’t work, tried scanner and it said on comutation, then unpluged crankshaft pos. sensor, and fuel gauge worked plus heard the fuel pump relayl click, plus other clicking of realys, so pluged back in and everthing went dead again,,is there a way to use ohm meter to check crank sensor removed from the motor,,,heard they can cause lots of trouble????
thanks sprinkles, just bought one from o’rilieys,too hot here today but going to put it on in the morning,what and wheres the pcm,,sounds like a pricey item,,,,,,,,jim

Best answer:

many times on a jtec pcm if the crank sensor shorts, it will kill the pcm. replace the crank sensor. by the way, i have replaced many brand new aftermarket sensors that did not work and the jeep was still towed in. under no circumstances would i buy an aftermarket sensor.

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1 Comment for 1998 jeep cheokee no fire or fuel,but cranks over?

  • 1. welderdiver  |  March 9th, 2006 at 3:57 pm

    Just try the crank sensor which you did hear right is a very common problem with jeeps. No fuel, no spark usually = faulty crank sensor. Very unlikely it’s going to be a faulty PCM . Also if scan tool has a code “no crank reference at PCM” further indicates it’s most likely a faulty crank sensor and if not will need proper diagnostic manuals to diagnose the problem which may possibly lead to a PCM. There may be a way to check the sensor by a way from the dealer manual but I’ve always just replaced them without further diagnostics because they were common for going bad. Good luck!

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