Mechanics

WONT START WONT CRANK

1999 Jeep Cherokee

1999 Jeep Cherokee 6 cyl Two Wheel Drive Automatic

it will pre-start but when you turn the key to start it it wont crank. The starter and battery is good what else could it be?
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Viper1701d
August 16, 2009.



Is it cranking over and refuses to start or won't crank at all/nothing.

If its cranking and will not start-d below

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,cap and rotor /distributor pick-up coil, ignition control module, ECM,Ignitor cam and crank sensors- Note: If it doesn't apply disregard it

If its not cranking over at all/nothing l-could be fuse no. 10 20amp and fuse no.19 10amp, starter relay, transmission range switch and ignition switch.


http://www.2carpros.com/forum/automotive_pictures/12900_start1_3.jpg




http://www.2carpros.com/forum/automotive_pictures/12900_start2_3.jpg


Rasmataz
Aug 16, 2009.


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