The vehicle starts and shuts off with a mind of its own, you never know if you will be comming home
I just fixed my '95 Grand Cherokee after a few years of dealing with this very common stall issue.
It is the Crank Positioning Sensor. I had put a new one in without any change. I tried another one without change. Discovered Jeeps DO NOT like aftermarket sensors. I bought a new one from the dealer and haven't had any problems.
SOURCE: 1999 4.0L Jeep Grand Cherokee shuts down after 20-30 minutes.
I'd suggest the ignition control module, however I'd have a certified mechanic check it out just in case...
SOURCE: 1999 jeep grand cherokee transmission
This is called limp mode chrysler did this to protect the transmission without leaving the owner stranded by the road,a few things will cause this mainly putting the wrong fluid in the transmission,they use only atf+4,or the govenor pressure sensor is acting up which should cause a check engine light to come on,or the transmission just needs a fluid and filter change,should be done every 2yrs or 36k miles,due the fluid and filter change about 40.00 but if you have the wrong fluid then the whole system needs to be flushed and refilled-transmission-torque convertor,radiator and cooler if equipped and all lines.
SOURCE: 1991 Jeep Fuel Control Issue
Hey Mudkicker,
Who ever thought of putting an electric fuel pump inside a tank of gas........
Check your other gauges for accuracy. They do that when a ground is loose.
Check the wiring from the fuel tank along the longitudinal frame for frays and shorts. Plugs are secured.
Under the hood, passenger side, check the fuel pump relay. Switch it with one of the others to test it.
Bring the vehicle to an auto parts store. Ask them to break out he code reader. Check for diag codes
Comment me back
Mike.
SOURCE: Engine runs for a few minutes, then stalls and is difficult start
im sorry to say but i think the head gasket has blown the only real way to test for this is whats called in the trade as a "sniffer test" its a tool for sucking up some of the water in the rad and if there is any hydro carbons in it its a dead give away the head gasket has been leaking of has blown as it turns blue/green, you could try a compreshion test first but thats not realy as good as a sniffer test the reson you could not find any were the water was getting out is that the motor head gasket ls blowing up the rad
i know,,its bad news, slap my legs!
SOURCE: 2006 Jeep Commander Intermittent Starting Problems
Common problem in snow country where salt water can corrode starter parking gate wire connection at started tab. Just cleanthe connector and tab, coat in dielectric grease, problem solved in 15 minutes!
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