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SUVs Jeep Cherokee and Jeep Grand Cherokee Jeep Grand Cherokee Start Stall Idle Problems
589 messages, Last post on Nov 26, 2009 at 4:03 PM
You are in the Jeep Cherokee and Jeep Grand Cherokee Forum. Your Hosts are steve_ & tidester
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| I have a 1996 Jeep Grand Cherokee with the 4.0 six. It ran fine. I went out to start it and it turned over but would not run. Didn't even try to run. I can hear the fuel pump working at the tank. Haven't yet checked the spark. I forgot to mention in the earlier post that the guages also don't seem to be working. With the key on the needles don't move, but the indicator lights come on as normal and then go off. Because there was no warning and the guages aren't working I wonder if it is in the electronics. Anyone else have this happen?. Is this a well known happening? Suggestions? | |
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Replying to: jeepercreepe (Mar 22, 2009 10:36 am) next eignition switch |
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We have a 2000 Grand Cherokee that has an intermitent issue with the engine hesitating and then reving while driving. It mostly happens after extend driving, approx 1 hr. The check engine light comes on and will stay on for a day or so then just go off. Any suggestions on what it might be.
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Replying to: loftlow (Mar 29, 2009 5:07 pm) |
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I have a 1996 JGC 4.0 that has started stalling. It has gotten worse in the last 2 weeks. I have replaced the idle air motor, the throttle position sensor. No vacuum leaks, all grounds appear to be good, no corrosion. Going to check the low temp thermostat in cooling sytem, crank postion sensor. I have read some posts where people have taken the PCM computer and sent it out to have it rebuilt. Does anyone know where or who to send this to??? This is driving me nuts.
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Replying to: cc757 (Apr 01, 2009 6:02 pm)
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Replying to: bradpans (Apr 01, 2009 7:29 pm) |
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My 2001 GC 4x4 v-8 would stall at any speed. Every time it stalled the fuel gauge reads empty, wait for 3-5 minutes and the fuel gauge would register the full tank and it would start right up every time. I changed the CPS, ICS, cleaned and replaced battery terminals, none of this cured the problem. Next I replaced the TCM and the problem went away. Now my 98 6cyl, 2WD GC Laredo with nearly the identical problem, The fuel gauge reads empty (tank is full) and it will not start. It has not been ran for over 2 years. I've clean connections and checked the fuses and relays, nothing helps. There is something with the GC's that does not allow the fuel gage to register. I assume something somewhere is not functioning properly and not allowing the fuel gauge circuit which also must include the fuel pump from operating. In a previous post I was informed the fuel pump and gauge gets their grounds thru the TCM. Replacing the TCM did cure the 2001 but that's an expensive "trial" for my 98. Anyone have a workaround to isolate the actual problem? ] We thought the 98 was out of gas, sitting so long and all, but after adding about 2 gallons it was overflowing. There must be a way to bypass the TCM fuel pump control to determine if that is actually the cause. Sure wish we could make the fuel gauge operate normally when desired. Anyone know if the TCM from the 2001 GC v-8, 4x4 will work in a 98 GC 6 cly? I would like to try my old TCM in the 98, at least it wouldl start and run for awhile. Thanks for any suggestions. g |
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After chasing our tails for weeks and replacing sensor after sensor, I had a guy come to my mechanics shop and hook up special diagnostic equipment just for the Jeep. He found nothing. As he was walking away from the car, it stalled. He left the key on, and hooked up his equipment, nothing....the computer or PCM was shot. So I bit the bullet and got a new PCM and the car runs fine. SAVE YOURSELF THE TIME AND MONEY AND START WITH THE COMPUTER, THEY ARE ALL DEFECTIVE AND WILL DIE ON YOU EVENTUALLY. THESE THINGS GO BAD AND DON'T SHOW ANY CODES. THIS WILL CAUSE ALL KINDS OF HAVOC WITH VARIOUS SYSTEMS AND WILL DRIVE YOU NUTS TROUBLESHOOTING. YOU WILL SAVE YOURSELF A LOT OF HEADACHE. Forget about quick fixes... zip ties, backing out screws and all that, it won't FIX the REAL problem which is a faulty design by Chrysler....and they know it. I personally will never own a Chrysler product again. By the way, does anyone want a nice used Jeep??
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Replying to: cc757 (Apr 07, 2009 9:25 am)
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