97 jeep grand Cherokee Laredo 4.0

Asked by dustincate Aug 29, 2017 at 06:20 PM about the 1997 Jeep Grand Cherokee Laredo

Question type: Maintenance & Repair

I got a 97 jeep grand Cherokee Laredo  4.o I
replaced the coil pack the crank sensor and
fuel pump and cap rotor button it ain't
getting no  fire or gas and it won't start it
turns over and over unplugged pcm on fire
wall nothing still doing the same thing

4 Answers
2,720

Bill answered 6 years ago

Check in your power distribution box in the engine compartment for a 10 amp fuse for the PCM. Make sure it is not blown. The PCM controls just about every aspect for your motor as far as fuel and spark distribution is concerned. Also make sure the PCM is grounded where it mounts to the body. Some times the bolts that attach it to the body get corrosion and loose the ground and can cause an intermittent problem like you describe. More prone to do so if you live in an area where they salt the roads during the winters.

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