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90 yj crank no start died while driving

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Old 08-23-2009, 08:54 PM
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Default 90 yj crank no start died while driving

on the way out to the trail my buddies yj was running fine. we were on the highway at about 65mph when all of a sudden 2 or3 loud back fires and the thing shuts down. i checked spark and fuel. has both. any ideas?
Old 08-23-2009, 09:01 PM
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CPS

Was the road wet or damp?

If it was than more than likely the CPS has a crack in it..
Old 08-23-2009, 09:07 PM
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no was dry today
Old 08-23-2009, 09:09 PM
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Than bad gas would be my next thought.
Old 08-23-2009, 09:29 PM
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when it cranks it just dosent sound right... like it jumped time or something. i would think even with bad gas it would still try to start
Old 08-24-2009, 11:18 AM
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it sounds like timing to me,but cps and cam pos sensor can also cause it. yours not having a dist,it is possible chain slipped.
Old 08-24-2009, 12:18 PM
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it has a distributor
Old 08-24-2009, 12:30 PM
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Make sure distributor/rotor is turning while you crank it. I've seen the drive shear off before.

Last edited by ol"blue; 08-24-2009 at 12:32 PM.
Old 08-24-2009, 04:42 PM
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ouch... ok will do
Old 08-25-2009, 05:30 PM
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ok this is what my freind found

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