95 Cherokee Sport
08-02-2011 | 09:33 PM
#17
Old Skewl CF like a Sir
Joined: Feb 2008
Posts: 4,355
Likes: 3
From: Fort Myers, FL
Year: 1996
Model: Cherokee
Engine: 4.0L High Output OBDII
1st thing check codes with key on off thing. Crank sensor is where motor & tranny mount on drivers side, up high by firewall. Definitely get mopar if you buy any sensor. Could be ecm. Fuel pressure could be checked with gauge on fuel rail(I doubt this is cause though). Check ignition wires, coil wire, coil. Ignition fuse?
Key cycle generic codes didn't start until 97. 95' is still obdI.
run a hot wire to your coil and see if it will fire. if it will, trace it backwards until it won't. i had an old cj that did the same thing to me. it would lose spark driving down the highway and die. i thought i fixed it several times. in the end i ran a hot wire to the coil through a toggle switch on the dash. that fixed it for good.
08-02-2011 | 10:07 PM
#18
Member
Joined: Jun 2011
Posts: 199
Likes: 2
Year: 2005
Model: Grand Cherokee
Engine: 4.8L
Key cycle generic codes didn't start until 97. 95' is still obdI.
Won't work on the computer controlled coil. It the pcm is constantly looking for a return signal voltage from the coil. Plus I'd personally never hotwire something that produces 150,000 volts, but that's just me.
Won't work on the computer controlled coil. It the pcm is constantly looking for a return signal voltage from the coil. Plus I'd personally never hotwire something that produces 150,000 volts, but that's just me.
08-02-2011 | 10:27 PM
#20
CF Veteran
Joined: Apr 2009
Posts: 4,734
Likes: 11
Year: 2015, 2012
Model: Grand Cherokee (WK2)
Engine: 3.6L
If it spins over like there are no spark plugs in it, then there may not be any compression. OR the valves are not opening or, especially, closing.
Which might indicate a broken timing chain. Maybe pull the valve cover and see if the valvetrain is moving properly.
I don't know if a Jeep engine is an interference fit or not, but I'm sure somebody on here knows.
Which might indicate a broken timing chain. Maybe pull the valve cover and see if the valvetrain is moving properly.
I don't know if a Jeep engine is an interference fit or not, but I'm sure somebody on here knows.
08-02-2011 | 11:02 PM
#21
::CF Moderator::
Joined: Sep 2009
Posts: 3,333
Likes: 381
From: Glen Burnie, MD
Year: 2001
Model: Cherokee (XJ)
Engine: 4.0l
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