92 5.9 Dakota no start problems
#1
92 5.9 Dakota no start problems
HI everybody:
I bought a used Dakota, discovered that the motor was junk and replaced it with a used motor from a 93 Cherokee.
It worked fine for about two days and then died. Engine cranks but won't fire. I replaced the crank sensor and have power to the ECM/PCM. I have no power to the primary side of the coil and no spark. The auto shut down relay has been swapped with all 3 of the other relays in the fuse box so I think that is not the problem.
Where do I look next? What is the voltage that I should see at the crank sensor plug?
I am afraid this will be some simple/stupid fix that I just can't find.
Thanks in advance for any help.
Steve
I bought a used Dakota, discovered that the motor was junk and replaced it with a used motor from a 93 Cherokee.
It worked fine for about two days and then died. Engine cranks but won't fire. I replaced the crank sensor and have power to the ECM/PCM. I have no power to the primary side of the coil and no spark. The auto shut down relay has been swapped with all 3 of the other relays in the fuse box so I think that is not the problem.
Where do I look next? What is the voltage that I should see at the crank sensor plug?
I am afraid this will be some simple/stupid fix that I just can't find.
Thanks in advance for any help.
Steve
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Check for power at the coil while cranking. The PCM will only supply power (via the asd relay) for three seconds at key on, after that, it has to see the engine turning. (crank sensor.)
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