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Unread 04-11-2010, 12:37 PM   #1
Ryn109
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Join Date: Apr 2010
Location: Seattle
Posts: 3
Yj No spark after random engine shut off.

Was gonna drive my jeep to work one morning it started up and ran for like 3 seconds then shut off with no sputter. I tried to crank it over and nothing. When i got home from work I was getting no spark. I plugged in my other coil I had and nothing. I plugged in my other CPS sensor i had from my old transmission and still nothing! 1992 yj, Engine is 4.0 manual tranny. I posted similar post on NwWheelers. Looking for some more insight to my problem. Thanks for any input, Ryan.

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Unread 04-11-2010, 01:01 PM   #2
roccomonte
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1991 YJ Wrangler 
 
Join Date: Nov 2008
Location: Victorville, Ca
Posts: 232
does your check engine light turn on when the key is on?
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Unread 04-11-2010, 01:04 PM   #3
88YJtoCJ
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1988 YJ Wrangler 
 
Join Date: May 2009
Location: Sarasota, FL
Posts: 260
I would see if you get spark ON the coil, not at the plugs. Then work your way through your ignition system backwards from that point...

My money is on your ignition switch.
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Unread 04-11-2010, 01:09 PM   #4
Ryn109
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Join Date: Apr 2010
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Quote:
Originally Posted by 88YJtoCJ View Post
I would see if you get spark ON the coil, not at the plugs. Then work your way through your ignition system backwards from that point...

My money is on your ignition switch.
Getting 12volts at coil and about 5 at the distributor. Any way to check ignition switch?
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Unread 04-11-2010, 01:10 PM   #5
Ryn109
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Join Date: Apr 2010
Location: Seattle
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Quote:
Originally Posted by roccomonte View Post
does your check engine light turn on when the key is on?
No check engine light.
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