96 cherokee no start.
#1
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Year: 96
Model: Cherokee
Engine: 4.0 H.O
96 cherokee no start.
I have a 96 cherokee 4.0 h.o. It currently will not start. Ive changed the crankshaft position sensor and the ignition coil. I have also checked all fuses and relays. It will crank but wont start. The fuel pump relay and asd do not switch on unless i take a wire from the negative battery and connect it to the dark blue/yellow wire on the relays themselves under neath the pdc. Any thoughts on what could be causing this? Also the is no power to the ignition coil unless i have that wire hooked up.
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Year: 1986
Model: Cherokee
Engine: 5.3L Vortec V8
None of those things get power unless the engine is cranking or running. The relays are controlled by the computer which shuts off the fuel pump if it does not detect that the engine is spinning. This keeps the fuel from pumping all over the ground after you crash. To actually test that you need someone to crank the engine while you check voltages. I believe the coil is similar in that the computer will shut it of unless the engine is actually cranking.
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Year: 1986
Model: Cherokee
Engine: 5.3L Vortec V8
Have you checked to see if the spark plugs are sparking? Do you know for a fact whether it is getting fuel?
#5
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Year: 96
Model: Cherokee
Engine: 4.0 H.O
It only gets fuel when i hook the wire up. Other than that the pump doesnt run. And last i checked there was no spark.
#7
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Year: 96
Model: Cherokee
Engine: 4.0 H.O
Ok so i changed the ignition switch and still nothing. Any other thoughts? Still no fuel and no spark. Need to get this running soon.
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Year: 96
Model: Cherokee
Engine: 4.0 H.O
Ive checked all of the fuses those are good. I know that theres a bolt.missing to hold it onto the inner fender. But how would i check the grounds on it?