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SUVs Jeep Cherokee and Jeep Grand Cherokee Jeep Grand Cherokee Transmission Problems
497 messages, Last post on Nov 24, 2009 at 5:54 AM
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Replying to: kalanibobb (Nov 04, 2009 6:26 am) Also have scanner hooked up to see the codes, or like on my 95 jeep you switch the key on an off three times leaving the key on at last turn(not starting), then wait for the check engine light to flash. The light will flash codes like one flash, pause, two flashes, pause would equal 12. This will tell you what to look for. This might not work for all vehicle. Good luck! |
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Replying to: remjeep (Oct 02, 2009 12:27 pm)
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Replying to: remjeep (Oct 02, 2009 12:27 pm) What engine work did you do because there's alot of things that factor into the tranny. let me know what you find, if find somthing i'll let you know good luck! |
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Replying to: nneal (Nov 04, 2009 4:14 am) I read an article you posted the 42RE about a default mode on the TCM, which is 3rd but manual shifting is possible, and that modes from a fault code, what does this mean, there a way to reset this TCM? Thank you!
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Replying to: kalanibobb (Nov 04, 2009 6:26 am) --after re-soldering mt headlight switch,my headlights don't blink on and off like the alarm has tripped..it works fine now.. --my best advice is to get a tube of DIELECTRIC GREASE-available from electrical supply places,then anytime you unplug ANYTHING-give the connection a good coat of that non-conductive grease..at least it will slow the contact corosion problem these trucks seem to be plauged with--even when you change a bulb ! p.s.. people--PLEASW CHECK YOUR TAILIGHTS AND BRAKE LIGHTS!..this annoys the hell outta me when people don't seem to care if their lights work ! the simplest way is to see your reflection in a store window !..might keep someone from hitting you! to keep the break pedal down to check brake lights-i use a hammer weged between the pedal and the front of the seat !but don't leave them on too long,as they get hot !..makes changing them harder.. 
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Hi , I need help !! my 2001 jeep has 150K on it , and when i take off the car is so heavy like putting a lot of effort ( i assume the transmission starts from the 2nd) and it will not shift to 3rd or 4th unless i start driving with the shift is on 2 and when i aproch a highway i shift it to D and OD then it runs smoothly , it used to do that once in a while but now it does it everyday , took it to the mechanic he said rebuilt or change the transmission which i will not do and prefer to sell the car instead if couldnt fix the problem , so please Help !!
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Replying to: xelvis66x (Nov 05, 2009 5:28 pm) The 42RE article about the default mode means if the TCM has a trouble code set, then it places the transmission in default mode as you described. On my 98 Cherokee, when I erase trouble codes with the scanner, it erases trouble codes in everything (engine computer and TCM). On my Jeep, I can only read the engine computer trouble codes, and not the TCM. I'm told I need a DRBII scanner to read those which the dealer has and is very expensive. I was surprised by some Jeeps with the 42RE, having the capability to read trouble codes of the TCM separate of the engine computer. I don't know if yours has an overdrive switch, but this is what the article described: "This system has self-diagnostics. Fault codes can be read with a scan tool or by cycling the ignition key three times, then counting the flashes of the LED in the OD off switch." Good luck and keep us posted on what you find.
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Replying to: nneal (Nov 06, 2009 4:15 am) My Jeep is a 95, with the OD off switch, which is before the OBD-II scanner connector, mines the OBD-I connector, there is one in the engine bay at the computer which we looked at and some codes were on that we caused, and then I found a plug inside for my TMC. The scanner we have reads the TMC and the computer, from that we got alot of readings, but I had no codes when I had the scanner in. Now with the flashes you said about I checked because I didn't have the scanner and I have TPS codes in both computers, this is after I wiggled the wiring harness a few days ago. How do you know if it's in default mode, from the articles my symtoms would say but i'm not sure. I guess the scanner will reset this.
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Replying to: xelvis66x (Nov 06, 2009 1:46 pm)
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Replying to: amab (Nov 05, 2009 8:05 pm) I knew the "guts" of the transmission was alright, because like yours, once I got it to drive it ran normally. Only when I came to a stop, it would not shift down to first unless I manually put it there (in order to take off again). So with nothing to loose, I bought a solenoid kit consisting of three solenoids off the web and installed them. To my surprise that's what my problem was. If this is what you decide to do, look around at some of the transmission parts sites on the web for solenoids. The Jeep dealer wants an outrageous price for theirs. I got all three solenoids (the kit) off the web for LESS than the price of one from the Jeep dealer. |
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