Question about 1988 Jeep Cherokee

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We already changed the coile and the module and we still cant get it to turn on?

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I guess your not getting fire to the plugs,you need to check your crank sensor,sit on top of trans back of motor over by driver side with two 10mm bolts, you'll see a harness going down from the motor to the trans on driver side.Replace ,bet my money on it.

Posted on Dec 13, 2009


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at night spary a lite mist of water on the coils and see if they spark out,if you see sparks then replace the coils, make sure to clean the mating surface of where the coils and module sit, also clean the area where the module bolts up.

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Two things.
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2. If its the all in one (magnavox) coil and you are sure all the parts you replaced are in working order then you might wanna have the timing chain checked. It may have broken and if the cam isn't turning you wont get spark.

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1988 cherokee no power to coil

I'd try an ignition module based upon what you have already replaced. Depending upon which engine you have and what month it was assembled, You could have one of several ignition systems (seems like they were using up whatever was on the shelves) any diagrams are cryptic as to any relays used etc. I'd try that, then physically begin tracing the coil power back to it's source. Actually, the car is old enough that I might even consider building my own ignition system and discarding the junk they used when they built it! But, that's somewhat complicated.

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