96 4.0 cherokee no start
Thread Starter
Junior Member
Joined: Dec 2011
Posts: 48
Likes: 0
From: Jacksonville, FL
Year: 1996
Model: Cherokee
Engine: 4.0 HO
Start off I did do a search and found nothing.
Here it is....
Driving down the highway and pulled off to fill up. No problem starting after fill up and got back up on the highway. Reach highway speed and about 10 min down the road no throttle response and stalls. We coast off the highway and stuck. No check engine light nothing just died.
Looked for any broken wires and such and found nothing. Get her home via 750$ tow and look deeper. It will crank but no turn over. I replaced the cap, wires, rotor, CPS, and checked for fuel pressure. Reading 50PSI on crank.
Anyone got any ides on where I should start to look?
Also Before this all happened I had a missfire and found a head gasket leak. Replaced the gasket, head, O2 sensors, CPS, Wires, Plugs, Cap and coil. And I'm sure some other things. been some time. The XJ has been sitting for a few months.
Thanks in advace.
Here it is....
Driving down the highway and pulled off to fill up. No problem starting after fill up and got back up on the highway. Reach highway speed and about 10 min down the road no throttle response and stalls. We coast off the highway and stuck. No check engine light nothing just died.
Looked for any broken wires and such and found nothing. Get her home via 750$ tow and look deeper. It will crank but no turn over. I replaced the cap, wires, rotor, CPS, and checked for fuel pressure. Reading 50PSI on crank.
Anyone got any ides on where I should start to look?
Also Before this all happened I had a missfire and found a head gasket leak. Replaced the gasket, head, O2 sensors, CPS, Wires, Plugs, Cap and coil. And I'm sure some other things. been some time. The XJ has been sitting for a few months.
Thanks in advace.
CF Veteran
Joined: Oct 2011
Posts: 4,440
Likes: 3
From: Seal Beach, CA
Year: 1996
Model: Cherokee
Engine: 4.0 HO Straight Six
Where did you buy the new CPS from? If it was not purchased directly from the dealership, there is a chance it was bad right out of the box.
Thread Starter
Junior Member
Joined: Dec 2011
Posts: 48
Likes: 0
From: Jacksonville, FL
Year: 1996
Model: Cherokee
Engine: 4.0 HO
Auto Zone. I read it out and had no resistance.
Also I just remembered.
When I check for spark I have strong Spark from the coil but when I check it from a plug wire it is weak.
Also checked all fueses and relays.
Also I just remembered.
When I check for spark I have strong Spark from the coil but when I check it from a plug wire it is weak.
Also checked all fueses and relays.
Last edited by CJ_tiz; Oct 24, 2012 at 04:08 PM.
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When I check for spark I have strong Spark from the coil but when I check it from a plug wire it is weak.
What did you use for a replacement coil? Could be that it has enough oomph to fire a single gap during testing, but not enough to jump the rotor/cap gap and the plug gap together with the additional resistance of the wires.
Thread Starter
Junior Member
Joined: Dec 2011
Posts: 48
Likes: 0
From: Jacksonville, FL
Year: 1996
Model: Cherokee
Engine: 4.0 HO
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
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