Question about 1989 Jeep Wrangler

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1989 Jeep Wangler 4 cyl 2.5L change out coil/elc box andcrank sensor not gettig fire.

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Posted on Jul 04, 2010

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I would be more inclined to think the wiring in the coil pack for that coil may have a problem. Have a shop check your ignition system, before springing for a new pcm. There should be a hot wire to the coil primary wire going to that coil. May have to run continuity tests on the wiring for the coil pack. Or if you could find a used coil pack, and use your good coils on it to try it.

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1 Answer

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1 Answer

Dead cylinders 2003 sebring


it sounds like you may have the wires on the wrong coil. It should be #1 on the #4 coil, and the #3 wire on the #2 coil. you probably have them backwards so 1 and 3 are firing on the exhaust stroke.
the firing order is 1-3-4-2.
they should be hooked like this.
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have you changed the ignition wires? perhaps firing order crossed? if not coil pack or ignition wires faulty how do you know it is not "FIREING" on 1 & 4 have you tested it with a spark tester tool???

Dec 23, 2008 | 2000 Daewoo Lanos

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