post #1 of Old 03-31-2010, 02:03 PM Thread Starter
TheGrimJeeper
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1989 XJ Cherokee 
 
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My '89 XJ turns over but will not start. Replaced battery and Coil

So, my '89 XJ 4wd 4.0l turns over, but I am not getting a spark from my coil, even though I just purchased one brand new. I also replaced my battery with a new one. My dist. cap is clean and was just replaced before winter....I'm running out of ideas and can't find anything helpful when I search JF...Someone please help me!

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post #2 of Old 04-06-2010, 01:39 PM Thread Starter
TheGrimJeeper
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I replaced my coil module as well now because it appeared burnt...and still nothing. Relays are fine.
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post #3 of Old 04-06-2010, 02:44 PM
LJameson
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check the crankshaft positioning sensor, thats usually the culprit of a no spark/no start condition.

1990 YJ-The wheeler
2015 JK- The DD
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post #4 of Old 04-06-2010, 03:26 PM
ajmorell
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x2 on the crank position sensor.
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post #5 of Old 04-07-2010, 02:07 PM Thread Starter
TheGrimJeeper
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okay...i located the cps...unplugged it, plugged it back in and nothing...is there a more efficient way of testing this?
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post #6 of Old 04-07-2010, 02:09 PM
ajmorell
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That's not going to test it. If it is bad unplugging and plugging it back in won't do anything. It MUST be in working order to run right and will not run without it. IIRC I think you can test the voltage or amperage but I don't remember or know off hand what those numbers should be.
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