1994 Jeep Cherokee Crank NO Start HELP!!

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Oct 3, 2023 | 02:16 PM

ryandyer9

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1994 Jeep Cherokee Crank NO Start HELP!!

So I have a 1994 jeep Cherokee sport 2wd 4.0 I bought it about a month ago and it ran great but about two weeks ago I went to leave for work and it would just crank and crank so I have replaced the distributor cap and rotor the ignition coil the CPS and cleaned the NSS it gets good spark and has good fuel pressure but I can not figure out what the issue is. If anyone has had this problem and know what it could possibly be please let me know. Thanks

Oct 4, 2023 | 12:13 AM

djgrayxj

Senior Member

Joined: Jul 2011

Posts: 560

Likes: 25

From: West Covina, Ca.

Year: 1988

Model: Cherokee

Engine: 4.0

Note from DJ

Have a look at this old post it was solved in post 12, and it has a lot of tips that might help you solve your problem.
http://www.cherokeeforum.com/f2/1989...utters-202975/

Last edited by djgrayxj; Oct 4, 2023 at 07:22 PM.

Oct 4, 2023 | 08:21 AM

Roler

CF Veteran

Joined: Jan 2012

Posts: 3,170

Likes: 312

From: Australia

Year: 1997 (RHD)

Model: Cherokee (XJ)

Engine: 4.0 ltr

Quote:

Originally Posted by djgrayxj

Note from DJ

Have a look at this old post it was solved in post 12, and it has a lot of tips that might help you solve your problem.

Might want to include the link to the thread? 😉

Oct 4, 2023 | 08:39 AM

ryandyer9

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UPDATE: got the jeep running yesterday night and it’s running extremely rough it’s showing codes 11 and 51 so I’m not sure if the CPS I installed is bad. Or if it’s a bad vacuum leak… I’m stumped. Bought new plug wires and plugs and gapped them to .35 and that didn’t fix it.

Oct 4, 2023 | 03:28 PM

Roler

CF Veteran

Joined: Jan 2012

Posts: 3,170

Likes: 312

From: Australia

Year: 1997 (RHD)

Model: Cherokee (XJ)

Engine: 4.0 ltr

Has it run at all before with this CPS?
What brand?

Other possibilities include CAM sensor, MAP , vacuum leak. You didn't get the plug leads mixed up, did you?

Oct 5, 2023 | 11:23 AM

Jim Malcolm

Senior Member

Joined: Oct 2020

Posts: 934

Likes: 282

From: PA

Year: 1994

Model: Cherokee (XJ)

Engine: 4.0

The fact that it "got good spark" in our original post, but didn't start, leads me to believe it's an issue with the fuel injectors not firing more so than the ignition, or as Roller said, you have some wires mixed up... Spark is an indication that the CPS is working just fine...