Question about 1993 Jeep Grand Cherokee

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No power to the coil? New crank sensor, Ecm, coil, distributor parts, and relays.

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  • Jeep Master
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Co9l should get power from the alternator while cranking, through the starter relay then switches to power from the engine control unit after startup. Check power at ecu and check over stuff you have installed (sometimes new does not mean it works) then check the auto shutdown relay...if no power coming from there, you won't have spark.

Posted on Jun 26, 2009

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Car cranks but wont start? No spark. Changed ecm relay no help. Ignition harness is good. No fault codes. Battery is good. changed ignition relay, no help. I think its the ECM but need more info to spend...


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Have your checked your coils? Never replace parts to try and fix a problem, Find the exact problem and fix it! No spart would be either a bad cam/crank sensor, bad coil pack or ecm fuse!

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