96 XJ still stumbles after replacing crank sensor with factory

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Feb 11, 2016 | 12:37 AM

Evan Bateman

Thread Starter

Newbie

Joined: Feb 2016

Posts: 1

Likes: 0

Model: Cherokee

96 XJ still stumbles after replacing crank sensor with factory

96 jeep xj 2wd 4.0
Driving fine then got a p1391 code a mile from home. Replaced crank sensor with factory and it didn't resolve the stumbling, but the check engine light went off. Replaced entire distributor since- new cam sensor. A cell in my battery was low, probably for a while, so I replaced it with a new one. Runs OK with nothing drawing on the battery while running, but once lights or a/c are turned on- it starts to stumble until it dies. Please help!

Feb 14, 2016 | 05:12 PM

6Cylinder

Member

Joined: Mar 2015

Posts: 111

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Year: 60th Anniversary

Model: Cherokee

Engine: 4.6

If youve altered the cam and crank signal id take it to someone with a DRB or adequate scan tool to do a CAM/CRANK Signal Sync Relearn.

Feb 16, 2016 | 05:38 AM

97grand4.0

CF Veteran

Joined: Nov 2015

Posts: 2,863

Likes: 201

From: syracuse ny

Year: 1997 230,000 miles

Model: Grand Cherokee (ZJ)

Engine: 4.0, new lifters valve job with new springs and exhaust valves, preload set with shims

Quote:

Originally Posted by Evan Bateman

'

Take it to autozone or advanced and have the alternator/battery checked for bad cell in the battery or shorted diode in the alternator. They have a great little machine, microprocessor controlled, that will print out the diode pattern.
Best part is, it's a free test and takes only minutes.

Sounds like your main running voltage is being dropped with any kind of a load on ie, alt or batt prob.