Jeep randomly turns off when driving.

Reply Subscribe

Thread Tools

Search this Thread

Sep 26, 2022 | 03:33 PM

#16

OldTires

Senior Member

Joined: Mar 2014

Posts: 952

Likes: 55

From: Eastern Long Island, NY

Year: 1996

Model: Cherokee

Engine: I6 Cyl / 4L

it's also worthwhile to wiggle your battery cables and see if you can get the engine to shut down. this is with the Jeep parked in a safe area. wiggle other ignition cables too. i had a loose wire in the power distribution box and it made the Jeep shut down randomly. the CPS wire should be by the back of the engine, on top near the fuel rail. find it and inspect it. look for burnt wires or bad splices.

be careful when you are doing this. watch out for the mechanical fan and pulleys. don't get your fingers caught or burnt.

good luck.

Sep 26, 2022 | 04:19 PM

#17

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

Quote:

Originally Posted by Kyle Bertrand

So the crankshaft positiong sensor does show symptoms when they are failing? I read another forums and some guy was saying that they show no signs of failing up and work just fine until the point where they do fail and just stop working.

It varies. They can fail gradually and begin to cause a miss, or periods where the engine won't run, then cool down and work again or just quit all together