Brainstorm help ...

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Nov 28, 2018 | 10:58 AM

Bjhsjb@yahoo.com

Thread Starter

Newbie

Joined: Nov 2018

Posts: 1

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From: Northern NJ

Year: 1996

Model: Cherokee (XJ)

Engine: 6cylinder

Brainstorm help ...

Hi group

my daughters 256K Jeep Grand Cherokee has a new alternator, new battery, new crank cam shaft sensor and crank cam distributor ...
problem started as Jeep shutting off while driving - it would just lose acceleration and rpms would drop occasionally would self correct other times it would need to be stopped and re started ...now it fails to start. Fuel pump is working fuel lines are good. Just does not turn over ... thanks in advance for advice

Nov 28, 2018 | 02:02 PM

4.3L XJ

CF Veteran

Joined: Aug 2008

Posts: 6,588

Likes: 495

From: Chico, CA

Year: 1986

Model: Cherokee

Engine: 4.3L with headers and full 3" exhaust system

Just fails to turn over. Does that mean the starter will not rotate the flywheel or does that mean it does not fire?

Nov 28, 2018 | 04:57 PM

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

What exactly is the fuel pressure and have you any fault codes present?

Dec 1, 2018 | 06:21 AM

dave1123

Old fart with a wrench

Joined: Nov 2010

Posts: 14,398

Likes: 741

From: Manlius, east of Syracuse, NY

Year: 2000 XJ Sport & WJ Laredo

Model: Grand Cherokee (WJ)

Engine: 4.0L

What's a crank cam shaft sensor or a crank cam distributor? Do you mean the crankshaft position sensor and the cam sensor in the distributor?

Symptoms sound like a bad crankshaft position sensor. Even if you changed it, it doesn't mean it's good. Aftermarket ones can be bad right out of the box. You need someone to check it for a signal.

Last edited by dave1123; Dec 1, 2018 at 06:27 AM.