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Jeep Grand Cherokee Transmission Problems



  • 2001 Jeep GC, 133K miles. Daughter driving it, stopped at a red light, put into park. Tried to put back in drive, would not go past neutral. Put it back into park and turned it off. Would not start after that. Acted like it was not into park/gear (not even trying to turn over). Tranny shop say it needs ripped apart and rebuilt ($1800-2400 guesstimate). Anybody had similar issues? Thoughts comments welcome. Thanks!
  • You may also want to check the Throttle Position Sensor. Not only does the tranny computer take inputs from the speed sensor and pressure sensor, but also from the throttle position sensor. If it thinks you're pushing the pedal down more than you are it will wait before shifting down so as to give you more power.

    When you switched out the pressure sensor did you also switch out the solenoid governor? They are on the same body. The solenoid is one of the the outputs from the tranny computer and puts its signals into action.
  • 2001 Jeep GC, 133K miles. Daughter driving it, stopped at a red light, put into park. Tried to put back in drive, would not go past neutral. Put it back into park and turned it off. Would not start after that. Acted like it was not into park/gear (not even trying to turn over). Tranny shop say it needs ripped apart and rebuilt ($1800-2400 guesstimate). Anybody had similar issues? Thoughts comments welcome. Thanks!
  • Hey buddy, sorry replying so late just seen the post. I had an 05 jeep limited hemi as well, with the same bang noise when i would shift from nuetral to reverse or drive. I was told all types of nonsense like replacing sensors and even transmission rebuild. Thankfully i went to an experienced mechanic and turns out it was a simple BUSHING that was worn out. It was located towards the front left of the bottom of the car. Tell this to a trust worthy mechanic and he will find it. Good luck
  • :confuse: :mad: I seem to have the same problem or at least similar. When I am in what would be 1st gear and under 15-20 miles per hour, my tranny grabs likes it's trying to slip or something. I've had it into the Jeep shop several times and they say they can't find anything wrong. They performed an update on it that they thought would help and all it did was lower my fuel mileage. I'm not sure what to do at this point and I don't know where to turn for answers. I'm sure they think because I'm a girl, I have no idea what I'm talking about and I'm simply wasting their time. I'm no mechanic, but I know when a car shouldn't do what it's doing! I'm not crazy...... Am I???

    HELP!!!!!!! I love my car, but when it does this "regularly", I'm afraid one day I'll be sitting along side the road with a blown tranny.
  • rwengrrwengr Posts: 177
    edited January 2012
    Because repairs at the dealer are so expensive I have lost touch with that environment. They did not find a problem with the transmission because there probably isn't any. The transmission must interract with other engine controls. My guess is that one of these controls is off and is affecting the transmission. My Jeep is a 97 which was before they began using a computer in the transmission so I can't be specific.

    If I was in your situation I would not go to the dealer any more. Retain the documentation of your previous visits. Do not go to a transmission shop right away. Find a good general mechanic. Look for a private shop. Take your car and ask them to make sure something else is not causing the problem. Ask them to make sure transmission cooler lines are not leaking 1 drop of oil. They should be bone dry.

    If they say it is the transmission, ask them to refer a transmission shop. If not, do their repair.

    If the transmission shop has to fix it, take their bill to the dealer and ask them to refund the amount to you under warranty.

    Your problem could be something as simple as a loose ground wire or an electrical connector that has become contaminated with grease or oil.

    Please be aware that you risk hitting another snag trying to follow my advice. It all depends on who you are dealing with.

    A 2011 Jeep transmission should be flawless.

    Do not take it to transmission shop right away. They may find a non-transmission problem, but ask you to do an expensive rebuild anyway.
    First, make sure something outside the transmission is causing a problem with the transmission.
  • boydscoveboydscove Posts: 1
    edited January 2012
    Hi, I don't know if anyone has had this happen before so here goes. I own a 2002 Jeep Grand Cherokee Laredo with 176,000 kms. Lost the reverse and just before that when you stopped at an intersection and than tried to accelerate, the tranmission was not dropping back into first and is trying to start off in third gear. Took the vehicle to a transmission shop, had the reverse replaced and than he took a look at the shifting problem. Governor sensor was replaced twice, wiring harness has been replaced. They said it was the computer, took the vehicle to the dealer and had another computer programed and put into it. Codes still show that the governor sensor is the problem. Advised to return vehicle back to transmission shop to be fixed. Still have the same problem. Is there anything else that can be done?
  • 76577657 Posts: 1
    my 2005 jgc with 80K miles makes a thumping noise when automatically switching between gears. once up and running at 60 mph on the freeway with no gear changes runs fine.
  • jclerkjclerk Posts: 2
    Have 2002 jgc, 4.7L, in the last year or so, when engine starts up cold, it revs high, 2 to 3 grand, up and down, and slowly drops rpm down;
    if put into drive when engine revving high, then engine stalls;
    if let engine idle and warm up; then engine still revs around 1 to 2 grand at idle; but car can be driven without stall;

    cleaned control valve body, no difference;
    took it to a mechanic, he checked with his alldata, says, the throttle control valve is bad; quoted $150 for part and labor;
    after new throttle control valve, no difference;

    mechanics says, the tps, throttle position sensor, is also bad, another $150;
    now engine runs and idles smooth as silk; idling under one grand, no more high revving after start up, and no more stalling when put into gear;
  • Hi my 2004 Grand Cherokee Jeep has an intermittent fault, every week or so the Transmission sticks in first gear. I have to stop and then the fault is fine. It happens maybe twice in a journey, but only happens every 4 or 5th journey. I have had the fluid and filter change. it has 70k on the clock. Any advice.
  • gcat1gcat1 Posts: 2
    I am SOOOO disappointed in Chrysler with this problem. This shuttering occurs at exactly 17 MPH in my 2011 GC Limited. They have rebuilt the entire valve body in the transmission, replaced the drive train control module and updated the software as well and I also have lost about 3 MPG!

    I have spoken with Chrysler customer service a couple of times and they have told me that they have left my file open on this problem (supposedly that means that they are working on a fix), but nothing yet. The dealer said that they have this with all the Limited models and offered me to drive others (I really don't care if the trucks in their lot shake, rattle and roll --- I just want mine fixed) to feel it for myself and they told me that the cause is that the torque converter is engaging at that speed and this is the cause -- If this is the cause it can be fixed and I think I am being told a load of crap so that they don't have to have a recall and replace all the transmissions in this model (which is something that they have done with overseas models)

    As an aside, if you change the drive control between the seats to SPORT vs AUTO, this will cause the shift pattern to change a little and it won't be as noticeable, but that damn vibration is still there ...

    LET'S GO CHRYSLER, these are $35 - $50,000 vehicles that you make a ton of money on --- If you cannot afford to get this done right, have FIAT give you the money to fix this problem correctly NOW!
  • rwengrrwengr Posts: 177
    Make sure there are no fluid leaks. It affects the pressure. Pay special attention to transmission cooler lines. They should be bone dry.

    Next, check all electrical connections between engine and transmisssion. Make sure no wiring or connectors are contaminated with oil. Sometimes the engine leaks oil and it blows back over the transmission.

    If you don't find anything, then I think you have an electrical-mechanical component like a solenoid inside the transmission with an intermittent fault. Unless somebody can diagnose the problem, you will have to do a rebuild.

    If your transmission has a computer, check with the dealer about any Tech Service Bulletins or firmware upgrades.

    Transmission problems are the worst.

    Once you fix the problem, please update the post
  • Hi Iam having the same problem only worse it is now stuck in crawl and wont advance through the gears. have you made any progress in diagnosing the cause as where i live it is going to cost a fortune to get it to a garage that can diagnose the exact problem. the OBD codes that show up are P0700 and P1652
  • Try Dr. Tranny's Shudder Fixx. It is awesome. I buy it inexpensively off eBay and put it in all my vehicles. I have a 2003 Ford Windstar company van - that model of which is known for transmission torque converter issues. Dr. Tranny's has stopped the issues with my Ford and both my Jeep GC and Commander rough shifting. The company responds quickly and thoroughly to any question you have about their extensive and unique product line. Dr. Tranny is perhaps the best kept automotive secret. I learned about it from a transmission expert.
  • unsure_jeepgrlunsure_jeepgrl Posts: 1
    edited January 2012
    i have a 2000 jeep grand cherokee laredo; 4wd; 4.0L; i don't know what kind of transmission i have. the codes that came up are: cylinder misfire detected on cylinders 4, 5, and 6; govenor pressure sensor, offset voltage too high/low;
    it explains the codes that came up and the probable causes, but i am unsure what to do first, and i don't want to blow my engine up. please help me.
  • I'm having the same problem. I have a 2007 jeep grand cherokee lardeo. I have everything working fine other then it won't start and says transmission over temp. Has anyone figured out what it is or has it been fixed? Please feel free to send me a email at thanks.
  • nnealnneal Posts: 72
    There is a discussion about similar symptoms on this page. Hope it helps.
  • Does anyone know if we will be able to order the 8 speed tranny in June for the 2013 MY.
  • shifts fine from 1 to 2. as it goes into 3rd it either revs engine as if in neutral or holds gear and tachs out. after a sec either way it shifts into 3rd. it does not always do this. sometime it shifts normal. changed tps, input and output sensor. are there anymore sensors besides the tcm that might cause this? or is it the tcm? any suggestions? if it is the fluid is it alright to change filter and fluid. always heard that would tear up trans if you have not changed it at specified intervals.
  • I recently purchased a 2011 JGC Limited, in 2 months have put about 7K miles on it. I have been noticing what feels like a studder or shudder when slowly accellerating - like the transmission is slipping or something. I've cancelled a couple of appointments with the dealer - I'm sure these folks won't be able to "notice" it or feel it like I do. It seems to happen when the vehicle is slowly speeding up, or trying to maintain speed at any speed. For example, cruise control at 55, going up a gentle slope - it feels like it's misfiring. I also feel it slip when pulling away from a stop - almost feels like something sliding to the back of a pickup truck bed and hitting the tailgate. If anyone has a solution, or have had success diagnosing this - please post. At this point, I'm just waiting for the tranny to quit - then they can fix it....!
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