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96 CPS Question - Engine cranks does not start

Old Sep 1, 2011 | 09:01 AM
  #1  
stonewall72's Avatar
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Default 96 CPS Question - Engine cranks does not start

Hey all
Wondering if someone could help with a problem i am having with my 96 Cherokee 4.0L 5spd?
Engine Cranks will not start. Do not hear fuel pump priming.
No fuel at fuel-rail.
Checked fuses/swapped relay for fuel pump. No change
Unplugged CPS connecter at engine. Fuel pump kicks in and primes.
Fuel rail squirts out a small amount of fuel now.

Does this sound like a bad CPS sensor or bad connectors/wiring to CPS sensor? Tested CPS sensor...got 3.74ohms.

When i unplug the CPS sensor (with ignition turn to ON) and the fuel pump kicks in...is that typical behavior for bad cps or something else?

Thanks for the help!!!
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Old Sep 1, 2011 | 10:30 AM
  #2  
cpnwrench's Avatar
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From: West Texas
Year: 1991
Model: Cherokee
Engine: 4.0 L
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Yeah, its the CPS.

replace it.

mine went bad on beltway around DC during rainstorm, at rush hour... NOT

fun place to be when that happens!!!

good luck sir!

cpnwrench

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Old Sep 1, 2011 | 10:34 AM
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stonewall72's Avatar
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Just ordered it from autozone. $66. Not too bad. Thanks for the quick reply! Appreciate your help sir
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Old Sep 1, 2011 | 10:44 AM
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DFlintstone's Avatar
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From: Nor-Cal Coast
Year: 90,84
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Engine: 4.0,2.5
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Let us know Eh? I think it's good for the whole site if we post solutions instead of just walking away when it's done. Good Luck! D.

Last edited by DFlintstone; Sep 1, 2011 at 11:06 AM.
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Old Sep 1, 2011 | 05:07 PM
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That did the trick! took about 15 minutes to remove and about 10 to put back in. Used a few extension bars on the ratchet - real easy. She fired right up!! Thanks again for your help and a great forum!

...now i gotta go fix that hole in the cat converter where the O2 sensor blew out!!! lmao Cheers!
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