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Unread 05-03-2011, 06:22 PM   #1
Djsthe1
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test a coil??

Is there a way to test a coil to see if it is bad? What voltage should you get from the coil?

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Unread 05-03-2011, 06:31 PM   #2
OOXTEME
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Here ya go!
http://youtu.be/rJYJ3KvPhhY

Or...
http://youtu.be/eKWsI2vNxPs
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Unread 05-03-2011, 07:52 PM   #3
Djsthe1
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OK so the first test would be the same as turning the key on and removing the wire from the top of the distributor cap and putting it near a ground, which I did with coil and a spare coil and nothing. The second I am guessing that by testing the Ohms, if it is a bad coil it will not read any Ohms?
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Unread 05-04-2011, 05:41 AM   #4
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Bump...
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Unread 05-04-2011, 05:51 AM   #5
Louie4
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Your Haynes or Chilton's manual should have the acceptable readings to see if it's bad or not. If you don't know you can take it to Autozone and they'll test it for free, probably even try to sell you a new one if its bad.
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Unread 05-04-2011, 06:05 AM   #6
Djsthe1
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Ahh.. good old trusty Haynes manual.. I forgot all about that..
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Unread 05-04-2011, 12:09 PM   #7
Djsthe1
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OK so the Ohm level on the coil is 1.5 but still no spark. Took the CPS off, all looks well, cleaned it off and reinstalled. Still nothing, is there a way to check the CPS to see if it is bad?
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Unread 05-04-2011, 01:06 PM   #8
Louie4
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Quote:
Originally Posted by Djsthe1 View Post
OK so the Ohm level on the coil is 1.5 but still no spark. Took the CPS off, all looks well, cleaned it off and reinstalled. Still nothing, is there a way to check the CPS to see if it is bad?
I think there is a continuity test you can perform but I'm not sure. Have any buddies with the same motor as your jeep? You could try swapping it out.

So there's no spark from the coil to the distributor? If not I'd look towards the CPS like you said.
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Unread 05-04-2011, 01:21 PM   #9
Djsthe1
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No buddies with this motor, I have a spare 95 but the connectors are different on the the newer ones. I looked through the Haynes manual and found a test for the CPS, not sure I understand it but will try it.
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