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engine dead after jump!

Old Feb 15, 2011 | 03:06 PM
  #1  
truckntractorhick's Avatar
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From: Harleysville, PA
Year: 1998
Model: Cherokee
Engine: 4.0L I6 Powertech
Lightbulb engine dead after jump!

well i went off a jump and upon landing it quit. everything worked fine pre-jump haha

symptoms:
no gas or voltage gauges (but works when doing the self diagnostic test)
cranks and cranks
i have fuel getting in
no spark
checked all grounds and came back good!

i already replaced the CPS with high hopes :/ but it did nothing.
so i wanna say the cam sensor or distributer cap/rotor? ill take a pic of it apart if you'd want. or maybe the ECM has some kinda shock sensor in it? idk. HELP!!! this is my DD!
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Old Feb 15, 2011 | 03:10 PM
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From: Salem Nh
Year: 1998
Model: Cherokee
Engine: 4.0
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Originally Posted by truckntractorhick
well i went off a jump
Well theres your problem.... Haha
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Old Feb 15, 2011 | 03:11 PM
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From: Broward County Fl.
Year: 1989 xj sport 2dr
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Engine: 12 hole bosch Injectors
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checked all fuses and connections to them with test light or meter
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Old Feb 15, 2011 | 03:14 PM
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From: Harleysville, PA
Year: 1998
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yup all relays, fuses, and grounds checked out!
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Old Feb 15, 2011 | 03:17 PM
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From: Broward County Fl.
Year: 1989 xj sport 2dr
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Engine: 12 hole bosch Injectors
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Originally Posted by truckntractorhick
yup all relays, fuses, and grounds checked out!
was there power in and out of them,try wiggleing ecm plug
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Old Feb 15, 2011 | 03:18 PM
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From: Broward County Fl.
Year: 1989 xj sport 2dr
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Engine: 12 hole bosch Injectors
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did you check fuseable links for power on both sides,is the battery held down or just sitting in box loose
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Old Feb 15, 2011 | 03:19 PM
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From: Salem Nh
Year: 1998
Model: Cherokee
Engine: 4.0
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I would start changing about plugs and cap/rotor and work from there. Check to see if anything got knocked loose.
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Old Feb 15, 2011 | 03:27 PM
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From: Harleysville, PA
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Originally Posted by freegdr
did you check fuseable links for power on both sides,is the battery held down or just sitting in box loose
where are these located?

Originally Posted by jeepxj19
I would start changing about plugs and cap/rotor and work from there. Check to see if anything got knocked loose.
and im off to the store right now to pick up these since mine are old and VERY worn down anyways! do i just pull up to remove rotor??
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Old Feb 15, 2011 | 03:29 PM
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From: Salem Nh
Year: 1998
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Originally Posted by truckntractorhick
where are these located?

and im off to the store right now to pick up these since mine are old and VERY worn down anyways! do i just pull up to remove rotor??
Yea the cap is held on by 2 screws, and the rotor slides right off. Dont bother buying any performance ones, just get oem. If u go to autozone its 20 bucks for both cap and rotor. When u switch over the plug wires make sure to mark them or do one at a time
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Old Feb 15, 2011 | 03:32 PM
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From: Broward County Fl.
Year: 1989 xj sport 2dr
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Engine: 12 hole bosch Injectors
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Originally Posted by truckntractorhick
where are these located?


and im off to the store right now to pick up these since mine are old and VERY worn down anyways! do i just pull up to remove rotor??
on mine right after starter relay wires and b at post cable connection
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Old Feb 15, 2011 | 03:32 PM
  #11  
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From: Harleysville, PA
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yea my rotor dont just slide up..... im trying to massage it off. haha
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Old Feb 15, 2011 | 03:34 PM
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Originally Posted by truckntractorhick
yea my rotor dont just slide up..... im trying to massage it off. haha
yea, just try wiggling it, and pulling up till it pops off
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Old Feb 15, 2011 | 03:36 PM
  #13  
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From: Broward County Fl.
Year: 1989 xj sport 2dr
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Engine: 12 hole bosch Injectors
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are we changing the subject here people lol
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Old Feb 15, 2011 | 03:37 PM
  #14  
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From: Salem Nh
Year: 1998
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Stupid question... Did u try jump starting it? Dunno if that would do anything
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Old Feb 15, 2011 | 03:39 PM
  #15  
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Originally Posted by freegdr
are we changing the subject here people lol
Hahaha
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