My '89 XJ turns over but will not start. Replaced battery and Coil - JeepForum.com
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Unread 03-31-2010, 03:03 PM   #1
TheGrimJeeper
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1989 XJ Cherokee 
 
Join Date: May 2009
Location: Chicago
Posts: 6
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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Unread 04-06-2010, 02:39 PM   #2
TheGrimJeeper
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1989 XJ Cherokee 
 
Join Date: May 2009
Location: Chicago
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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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Unread 04-06-2010, 03:44 PM   #3
LJameson
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1990 YJ Wrangler 
 
Join Date: Jun 2008
Location: Elizabeth Lake, CA
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check the crankshaft positioning sensor, thats usually the culprit of a no spark/no start condition.
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Unread 04-06-2010, 04:26 PM   #4
ajmorell
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x2 on the crank position sensor.
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Unread 04-07-2010, 03:07 PM   #5
TheGrimJeeper
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1989 XJ Cherokee 
 
Join Date: May 2009
Location: Chicago
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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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Unread 04-07-2010, 03:09 PM   #6
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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89 xj , no spark

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