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89 YJ Won't Start--Driving Me Nuts


 
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flyyboy
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Joined: 26 Mar 2007

PostPosted: Mon Mar 26, 2007 8:42 am    Post subject: 89 YJ Won't Start--Driving Me Nuts Reply with quote

Here's the stats:

'89 2.5 YJ
I'm getting no spark to the coil. I've replace the ICM ($$$) with no luck. I've gone through the basics: CPS, Plugs, Wires, Distributor cap, battery etc. It "turns over" fine and fuel system is OK.

The interesting thing is that this is a random problem. Sometimes it starts, sometime it won't. It's been getting worse lately. Here's the really interesting issue. I can always start it by pulling it. When it leaves me stranded, I keep a tow rope in the back and can usually find someone to pull me a few feet and "pop the clutch" in 2nd gear. It has never failed to start in this way (I've done this about 10 times). Once it starts, it runs great.

Has anyone ever have or heard of a problem like this? I've read a similar post and they are looking into the ECM. Any additional thoughts will be greatly appreciated.

Thanks for the help...fb
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JOHNB279
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Joined: 08 May 2007
Location: NEW JERSEY

PostPosted: Wed May 09, 2007 8:48 am    Post subject: NO SPARK Reply with quote

If it starts when pulled,it has spark.You seem to have no spark from crank,check ignition switch and starter selenoid for wiring problems.
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Tardis
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Joined: 07 Aug 2004
Location: Ohio

PostPosted: Wed May 09, 2007 7:44 pm    Post subject: Reply with quote

Check the crank sensor.
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