Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
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no start problem(s)

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Old 07-27-2012, 11:03 AM
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Year: 1987
Model: Cherokee
Engine: rebuilt straight 6
Default no start problem(s)

1st time it wouldnt start i tried unplugging and replugging different sensers i have had problems with before, ie:cps, tps. Nothing out of ordinary, always tried wouldnt go, but it did do a little better sometimes. after letting her sit for 30 min she started back up and i took her to a shop to get tps checked, way out of wack. $44 for 10 min job.
Then i died in the dark that night, nothing i did would change the constant crank. towed her home and tried again this morning, again nothing. started back from the begining and found some brake cleaner, shot her up the intake and she started right up. Drove down to parts store to borrow some testing supplys, ie: noid lite and fuel pressure tester.
  • when it was just cranking noid lite would not work. shot some brake clean up intake, it would crank try and almost start (during which noid lite blinked) then die.
  • unplugged 4 prong side of tps, nothing new, replugged
  • unplugged 3 prong side, she started up, got fuel pressure.
that makes me think there is still something wrong with my tps, correct?
any help would be great thanks.
Old 07-27-2012, 02:20 PM
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Year: 2000
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Default

try the Engine Coolant Temp sensor. It's $21 at Napa. Located in front on engine on the Thermostat housing, screws right in.

If that isn't it, I would try cleaning the Cam Position Sensor located right on top/in front of oil filter. Grey circular sensor with 2 5mm screws.

Next would be Crank Position Sensor located on back of engine where it meets bell housing.
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