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Old 02-25-2013, 09:26 AM
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Angry grand cherokee stalling problem

hi
everyone i have a 2006 jeep grand cherokee limited all wheel drive with a 4.7 and have been going crazy with a stalling issue it will stall when slowing down jeep has real low idle it doesnt matter if its warm cold it will stall i have replaced crank censor,cam censor,and tps can anyone help with this problem there are no codes in computer or check engine light and i have ran two large bottles of lucas fuel cleaner and changed fuel filter jeep has 100,000 miles any ideas please help and thanks in advance....
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Old 02-25-2013, 04:48 PM
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Re: grand cherokee stalling problem

Replace the IAC motor located on the Throttle Body and make sure the TB is clean.

Good Luck!
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Old 02-26-2013, 01:09 AM
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Re: grand cherokee stalling problem

Check your trans fluid level.
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Old 02-28-2013, 11:21 PM
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Re: grand cherokee stalling problem

Our Jeep is having similar problems. Most recent is when slowing down at the intersection ready to make a left turn. I hit the pedal when the traffic clears, nothing happens, keep revving and rpm is now at around 4500rpm, now I'm crawling at 20km but the rpm is still at 5000 rpm. Pull over, ignition off, key out then start it up and everything is normal again. What's going on?
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Old 02-28-2013, 11:51 PM
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Re: grand cherokee stalling problem

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Originally Posted by BLKCRD View Post
Our Jeep is having similar problems. Most recent is when slowing down at the intersection ready to make a left turn. I hit the pedal when the traffic clears, nothing happens, keep revving and rpm is now at around 4500rpm, now I'm crawling at 20km but the rpm is still at 5000 rpm. Pull over, ignition off, key out then start it up and everything is normal again. What's going on?
I don't think your problem is the same as the OP's. Your issue sounds transmission related. Have you checked your transmission fluid? If the fluid is fine ( fairly fresh and full and the right type), then it might be your torque converter lockup not working correctly. You should have your system scanned for any codes as well.
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Old 03-05-2013, 11:54 AM
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Re: grand cherokee stalling problem

I'm getting a OBD2 code P0717, electrohydraulic sensor unit. Dealer want a lot of money for this part.
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Old 03-06-2013, 10:55 AM
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Re: grand cherokee stalling problem

I was dealing with the same issue and replaced the iac valve, changed spark plugs, egr valve.....did not solve the problem. I then cleaned the throttled body pretty well and it eliminated the stalling issue. That was about a year ago and now I'm starting to get a weaker idle and feels like it may want to stall out again...but not extreme. I guess it's time to clean the tb again. I wonder if an oil catch can help eliminate this problem??
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Old 03-06-2013, 11:26 AM
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Re: grand cherokee stalling problem

I have three mid-nineties Chysler vehicles, two Jeeps and a ram truck. I have finally learned over these many tortured years that the very first place to start when experiencing random behavior is the PCM plug connections. The pin sockets have sprung gold alloy fingers that get relaxed over time and can cause all kinds of intermittent problems, from random stalling or ignition cut-out to rough idling, to improper pressure regulation in your transmission (which is controlled by the PCM) as well as poor voltage regulation.

I learned my lesson the hard way after many years of chasing down random gremlins on all three of my vehicles, replacing all kinds of sensors, IAC, CPS and such, thinking the problem is gone only to return in hours, days or weeks, change of weather and such, and for many others like me this will be the last thing they try that finally resolves their problem(s). So to all others I advise that it should be the first thing they try before opening their wallets.

I wrote a detailed write-up of this problem and how to repair it (for free) at jeepforum dot com under the thread "Infamous stalling problem - The REAL fix", but in short it involves pulling out the plugs and bending in the fingers with a sharpened dental tool. The two photos attached show 1) two plugs, the one on the left repaired and the one on the right prior to repair, fingers visible on the left, none visible on the right, and 2) the method of tool insertion. Each pin socket, the actual metal shell crimped onto the wire, has two internal gold alloy contact fingers. You need to get your needle or tool behind that finger, between the finger and the shell, and continue inserting the tool inward to bend the finger gently inward and restore contact pressure. If you do not have good eyes, the proper tool and good coordination I would recommend asking your dentist if he makes house calls, or combine appointments on your next cleaning:-)

A final note - Make sure you disconnect the battery before removing those plugs, and since that will reset the PCM you need to drive for a bit to be sure the problem is resolved... you could still have other issues as the root cause, but this one needs to be ruled out first.


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Old 03-09-2013, 09:15 AM
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Re: grand cherokee stalling problem

bump!
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Old 03-14-2013, 06:26 PM
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Re: grand cherokee stalling problem

the throttle positioning sensor helped mine
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Old 03-15-2013, 03:52 PM
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Re: grand cherokee stalling problem

I think everyone or almost everyone with a 4.7 have this issue, I did, but havent stalled in a couple months. Kinda just fixed itself. I did replace the TPS to no avail. Havent tried anything else as the leak in my truck from either the sunroof or something else has gotten my attention. GL to you though.
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Old 03-16-2013, 08:18 AM
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Re: grand cherokee stalling problem

Quote:
Originally Posted by chris2006cherokee View Post
hi
everyone i have a 2006 jeep grand cherokee limited all wheel drive with a 4.7 and have been going crazy with a stalling issue it will stall when slowing down jeep has real low idle it doesnt matter if its warm cold it will stall i have replaced crank censor,cam censor,and tps can anyone help with this problem there are no codes in computer or check engine light and i have ran two large bottles of lucas fuel cleaner and changed fuel filter jeep has 100,000 miles any ideas please help and thanks in advance....
did you replace the IACV? also a good idea to clean out the TB & the IAC passages in the TB, mine had 97K & was like oily n filled with a thick layer of soot. see the pic.
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