88' XJ Cranks, Won't Turn Over After Stopping - JeepForum.com
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Unread 11-07-2008, 01:35 PM   #1
Motorcharge
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1991 MJ Comanche 
 
Join Date: Oct 2008
Location: Richmond, Virginia
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88' XJ Cranks, Won't Turn Over After Stopping

I've got an 88' XJ Laredo.
Brand new ignition module and coil.
It runs and runs perfectly when it does, but when I stop I have to open the hood for 5-10 min before it will start back up. It'll crank, but it just won't start right up if I've been driving. I drove about 100 miles today before stopping with zero problems, stopped and went inside my aunts house for about 20 min and it wouldn't start. Wasn't over heated, all my fluid levels are fine, battery is fine.

above is a repost, but something I just thought of, this only started happening after I ran out of gas. It ran perfectly out to the inspection station about 50 miles from me and back. I ran out of gas like a block from the gas station. Pushed it there, filled up, started right back up. I got home and went to leave about 30 min later and its been happening ever since.

Also, I was sitting at a light the other night and it shut off and wouldnt turn back over for another 15 min or so. (apparently people dont understand hazard lights )

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Unread 11-07-2008, 03:43 PM   #2
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Unread 11-07-2008, 04:09 PM   #3
JTruel
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Is it cranking and not starting? Or not cranking at all when you turn the key?
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Unread 11-07-2008, 04:15 PM   #4
Motorcharge
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1991 MJ Comanche 
 
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cranks and doesn't start
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Unread 11-07-2008, 04:22 PM   #5
JTruel
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2005 LJ Wrangler 
 
Join Date: Mar 2003
Location: Broken Arrow, OK
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Sounds like the CPS is on the fritz (Crank Position Sensor) do a search, look at the symptoms and fixes of other members. Verify that is what yours is doing.

included a link to a CPS failure thread also

http://www.jeepforum.com/forum/f11/all-points-cps-622005/

good luck! keep us posted
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Unread 11-07-2008, 04:40 PM   #6
Motorcharge
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1991 MJ Comanche 
 
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Location: Richmond, Virginia
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yep, thats gotta be it, reading came out low.
thanks
anyone got a rough price on what these run?
cant seem to find it on google.
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