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Jeep Grand Cherokee Transmission Problems

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  • I have an 05 Jeep Grand Cherokee Limited. I also have had this problem... a handful of times and I've only had my jeep for a year. I didn't really consider it that huge of a deal because I've been driving slow, stopping most the time. I didn't realize it was a real problem, I just considered it weird! I am also struggling with my transmission I have a 4.7L and when it shifts, mostly 2nd and 3rd gears it slams into gear with a super rough shift. My boyfriend and his Friend looked into it, (my boyfriend is a mechanic and his friend is a head tranny guy at a transmission shop) and couldn't find anything wrong. They cleaned a piece and it's been a little better but not much. What is going on here!! :(
  • I had this exhaust issue. I have an 05 Jeep grand Cherokee 4.7L. The guy at the muffler shop said Jeeps were having this issue because of how large the engine is.. yada yada something something. 450.00 later, my Jeep no longer sounds like a tractor! yay!
  • levy76levy76 Posts: 8
    hi, having teh exact same issue. Has this been resolved for anyone else here that is having teh issue? help!
  • hellerd1hellerd1 Posts: 3
    Mine was the starter. I took it to the dealer and it started fine for 2 days and they told me to come pick it up and when I did I started it quickly three times in a row and it wouldn't start after that and they were able to do diagnostic after that and determine it was the starter. It had the same message though, transmission over temp.
  • levy76levy76 Posts: 8
    Thanks hellerd1. they actually changed the starter a few months ago when I had this exact same issue but problem as actually come back. Trying to figure it out for myself as dealer seems completely oblivious to what's going on with the car.

    I hope the replaced starter does it for you though!

    Anyone else out there that had this issue and it ended up being fixed??
  • levy76levy76 Posts: 8
    I have a 2007 Laredo that has 30,000 on it. A few times a month I try to start my Jeep and it won't start. This usually happens right after I had been driving it for a little. I get a very brief "Transmission over temp" or "Trans over temp" which lasts a second. It won't turn over, no crank, lights are on and so jumping the battery doesn't help either. dealership changed the starter a few months ago and I had no problem for a couple of months after that. Problem came back though...

    In addition, pretty certain this is related, but my wife says that the car will just shut itself off when driving at very low speeds and up a hill...

    Does anyone know why this is happening? I took it to the Dealer and they can't reproduce the problem.

    I've been researching a bunch of forums and this problem seems to happen to otehr people but there is never a definitive answer to how a dealer fixed the issue once and for all.

    Any help with tis would be appreciated.

    Thanks.
  • levy76levy76 Posts: 8
    I have a 2007 Laredo that has 30,000 on it. A few times a month I try to start my Jeep and it won't start. This usually happens right after I had been driving it for a little. I get a very brief "Transmission over temp" or "Trans over temp" which lasts a second. It won't turn over, no crank, lights are on and so jumping the battery doesn't help either. That being said, I can wait 15 minutes or so and then starts right up. Dealership changed the starter a few months ago and I had no problem for a couple of months after that. Problem came back though...

    In addition, pretty certain this is related, but my wife says that the car will just shut itself off when driving at very low speeds and up a hill...

    Does anyone know why this is happening? I took it to the Dealer and they can't reproduce the problem.

    I've been researching a bunch of forums and this problem seems to happen to otehr people but there is never a definitive answer to how a dealer fixed the issue once and for all.

    Any help with tis would be appreciated.

    Thanks.
  • they replaced my starter too at first, but that wasn't my problem either. then after the "transmission over temp" came on again and it wouldn't start for me, i took it and left it there for them. after a few days and them going out often and starting it up, it finally wouldn't start for them either. so then they did a diagnostic check and found the transmission control module was bad. hope this helps
  • levy76levy76 Posts: 8
    Hi drell9924

    Super helpful. Did changing the TCM finally fix the problem for good?
  • yes, problem solved. haven't had any problems since. but the dealer couldn't diagnose the problem until it actually wouldn't start for them. so you may have to leave it with them like i had to
  • Hey everyone I'm knew to this forum.

    I'm having a few quirks with my Jeep and I'm not real familiar with it, so I kinda need to bounce some ideas off of someone. I have a 96 grand cherokee limited with a 5.2 V8 and an automatic transmission with a manual transfer case that goes from 4whl HI, N, and 4whl LO.

    I was driving home and I noticed I was getting some serious white smoke behind me. I made it home and checked my oil and my coolant, no transference was evident. Oil wasn't milky, so I don't suspect the head gasket. I checked the transmission fluid though and it was bone dry. Then I checked around the engine bay some more and noticed red fluid all over the place, which I can only guess is transmission fluid.

    I did some more poking around and found that the one of the two lines going to the cooler is fairly loose. I did a little more tooling around in there and it looks like it's just leaking from where the line goes from a hard line to a rubber hose.

    Has anyone had this kind of problem before, and does my trouble shooting sound about right? I price checked the lines (full assemblies) and it's $40 for the lower, and $60 for the upper. My guess is that this should be about a $300 repair at a transmission shop, but I know how mechanics can be - I myself am a former marine that used to fix helicopters, so I know just how miserable some repairs can be, and this looks like the kind of repair thats going to become a pain in the butt. I can't imagine I'd charge less than that for me to fix it (if I knew how). Any one ever come across something like this with their jeep? If I take it to an auto mechanic, about how much do you think would be a fair price for the repair?

    I appreciate any help you guys can give!

    - Will
  • nnealnneal Posts: 72
    edited March 2010
    Absolutely, that would do what you described. I don't know what an auto mechanic would charge, but the job itself is not unusually hard. Setting up the Jeep so you have clearance room underneath, It only entails cleaning the road crap away from the end fittings, unhooking any hanger/supports and using a line disconnect tool available at parts stores or Sears auto department (link title) to undo the end fittings. If or when you do it, the key thing is not to be in a rush and keep everything clean as possible. I did mine on a 98 Cherokee and undoing of the fittings was the only real challenging part if it. It would be worth asking an auto mechanic what they would charge, as I wouldn't think the labor cost would be that much.
  • devriesdevries Posts: 3
    edited March 2010
    what would cause my trans not to down shift to 1st it takes off in 2nd if i put it in first myself it shifts great
  • devriesdevries Posts: 3
    where is the throttle p s on 96 jgc 4.0 auto
  • rwengrrwengr Posts: 177
    I have a 97 JGC 4x2 I6. I do a lot of my own repairs. Completely self-trained. An SUV with a frame is not too difficult to put on jackstands, but I use 6-ton stands; not the small ones you buy at autozone. Review Haynes manual you try it yourself.

    I've done this repair. You have to lay on your back so yes, it's a PITA. But compared to some procedures, cutting off old hose is easy.

    Otherwise, I suggest you look into getting the transmission flushed. It probably needs it. You have to disconnect these lines to flush it so incremental cost to put new line on should be small.

    You can ask transmission shop.
  • rwengrrwengr Posts: 177
    I have a 97 jgc shop manual and here's what it says

    1. Throttle linkage misadjusted
    2. Accelerator pedal travel restricted (make sure it's not hung up on floor mat).
    3. Valve body hydraulic pressures too high or low
    4. Governor circuit electrical fault
    5. Valve body malfunction (sticky shift valve
    6. TPS malfunction (throttle position sensor ?)
    7. PCM malfunction

    Sounds like it can be repaired without rebuilding entire transmission.
  • nnealnneal Posts: 72
    edited March 2010
    I had the exact same symptoms on my 98 Cherokee and it turned out to be one of the three solenoids in the AW4 transmission. Taking it to a transmission shop and also the dealer resulted in a diagnosis of replacing the transmission...no thanks! I discovered the bad one while changing the fluid and filter.

    There are other reasons your transmission could be acting up like this (especially since it might be a different transmission), but I thought I'd let you know what mine turned out to be.
  • devriesdevries Posts: 3
    edited March 2010
    thanks! mine is 2 wheel drive how do i find out which one is bad
  • I took the tranny out of my 97 and put it in my 98 gc. when i took it for test drive it went from first to second then kept jumping back and forth from third and over drive. The tranny fluid got super hot and now it is not working at all and it is stuck in drive and will not go into park. is my tranny shot? the manual said the two years were compatible!
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