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Jeep transmissions & drivetrains repair questions and answers

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  • AutoMD Member
    AutoMD Member - 2005 Jeep Wrangler (TJ) - Transmissions & Drivetrains - 7/23/2014
    When you try and start you have to jam the shifter back and forth on an auto transmission
    After you jam it back in park, it starts.
    0 answer
  • zippy911
    zippy911 - 1994 Jeep Grand Cherokee - Transmissions & Drivetrains - 6/29/2014
    Transmission when ever i start my jeep i get a klunking noise not all the time only sometimes does anyone no what it is
    is the torque converter suppose to touch the flexplate after its tightened sometimes when i start my jeep it makes an awful klunking noise
    0 answer
  • AutoMD Member
    AutoMD Member - 1987 Jeep Comanche - Transmissions & Drivetrains - 6/8/2014
    Was started to happen is the car starts on the first shifts the second but won't shift into the third it stays in second
    also when I put the 4 Will Dr. on it will not activate I believe I'm having a vacuum leak somewhere what is the easiest way of finding a vacuum leak?
    • AutoMD Member
      6/8/2014 AutoMD Member
      Make sure the engine is cool and start up the jeep and spray carb. Cleaner on ths vaccum hoses if it revs up or dies down .... you found your leak .. carb cleaner is flammable so be careful keep away from exhaust
  • AutoMD Member
    AutoMD Member - 2006 Jeep Commander - Transmissions & Drivetrains - 5/12/2014
    2006 Jeep Commander Base 8Cyl4.7L - Transmissions or air conditioner = "Blend Door"
    Took my car in for a belt replacement - told me I need a transmission -got a transmission. Since then less than 30-day one problem after another. They currently are making the repairs for free but are now say this "need Service light and Blend Door issue" is not ...
    • GT500Knights
      5/12/2014 GT500Knights
      Take it to another reputable repair facility. I've known firestone to do some poor work.....not necessarily on firestone's part. Probably the technicians fault. I would either take it elsewhere or ask for their master technician to resolve all your problems since they keep breaking something else on your vehicle.
  • mopar67
    mopar67 - 2008 Jeep Wrangler (JK) - Transmissions & Drivetrains - 5/7/2014
    How do I replace the neutural safety switch
    Starts won't get out of park
    • jdl
      5/7/2014 jdl
      The way you describe it, might be a problem with shift interlock system? Do the brake lites work?
  • AutoMD Member
    AutoMD Member - 2002 Jeep Grand Cherokee - Transmissions & Drivetrains - 4/1/2014
    My auto gear is slugish on drive. But active on 1. What do I do?
    The VIN is 1J4GX486392C3112. What is the posible solutin?
    0 answer
  • jpellis79
    jpellis79 - 2006 Jeep Commander - Transmissions & Drivetrains - 3/29/2014
    I hear a clunking noise when I start to move from a stop. Sound and feeling is from from drivers side. Axle?
    Is it ok to drive easy with it?
    • AutoMD Member
      3/29/2014 AutoMD Member
      if it only happens when you first start moving and does not happen again it could be engine or tranny mount gone out, if you hear a constant clunking noise while in motion then it would be the axle especially when you hit the brakes it should get louder
      AutoMD Member
      3/29/2014 jpellis79
      Forget that last question cause the axle let got with my mechanic!
  • AutoMD Member
    AutoMD Member - 2002 Jeep Liberty - Transmissions & Drivetrains - 3/26/2014
    When leaving a stop my liberty is randomly making a grinding noise like splines are rubbing .
    it continues until i stop . checked the cv joints on the drive line and front wheel hubs and can find no damage . i am unable to tell if the noise is coming from the front end or the transfer case . pulled the front drive line and cannot seem to make it happen ...
    • HouseCallAuto
      3/26/2014 HouseCallAuto
      Is it possible that you are hearing false abs activation? The same noise that you get when you apply the brakes when on ice?
  • AutoMD Member
    AutoMD Member - 1998 Jeep Grand Cherokee - Transmissions & Drivetrains - 3/20/2014
    What causes a thump- thump-thump in rear when vehicle is going down the road?
    New rakes and rotors. Tires and wheels checked. when lifted off ground and in gear no noise. Thumping increases with increased speed.
    • Jimm
      3/20/2014 Jimm
      Several possibilities; faulty / worn rear axle bearing, tire or wheel out-of-balance, tire worn or tread flat spot - or bubble / separated tread. May also be related to worn / faulty rear shock absorbers or worn / faulty suspension bushings. In addition, be sure to check the exhaust system mounting along the length of the vehicle.

      Try this as the next step - rotate the rear tires - one at a time; left rear to left front - only - as example to see if the sound or problem moves with that wheel position. If no change, then perform the same swap / exchange for the opposite side tires and wheels. Be sure to make only the one tire position change at a time to isolate the issue.

      If yes, then the issue must be with that one wheel or tire combination.
      3/22/2014 AutoMD Member
      worked, by rotating the tires thump moved to front but no nearly as bad. will check out tire and wheel. Thanks.
  • grace
    grace - 2005 Jeep Grand Cherokee - Transmissions & Drivetrains - 3/18/2014
    Why does my jeep keep going into third gear when I am driving????
    I will be driving and all of a sudden my jeep will make a noise and kind of jump and switch into 3rd gear, when I try to put it back into drive it will do nothing. Also my jeep has stalled three times since this started happening.
    • HouseCallAuto
      3/18/2014 HouseCallAuto
      Plug in a code reader and see what fault codes (if any) are stored. Checking for codes cannot be skipped.
      4/1/2014 AutoMD Member
      I did that and no fault codes showed up.
  • drelsabido
    drelsabido - 1997 Jeep Wrangler (TJ) - Transmissions & Drivetrains - 3/10/2014
    My jeep wrangler accelerates good on first start (cold engine) but feels like slipping after a full stop
    When accelerating from a full stop it feels like the car wont move forwArd rev is high but no power
    • Jimm
      3/10/2014 Jimm
      First step - have the stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' with the specific code for more assistance. There may be a fault code stored in the OBD memory which may not be displayed as a check engine light.

      Possible Causes of Engine Hesitation or Stumble:

      Dirty fuel injectors (cleaning the injectors often fixes this)
      Dirty air filter (change filter)
      Dirty / clogged fuel filter (change filter)
      Bad MAP (manifold absolute pressure) sensor
      Bad TPS (throttle position) sensor
      Bad or dirty MAF (mass airflow) sensor
      Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
      Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
      Bad gasoline (fuel contaminated with water or too much alcohol)

      Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

      Dirty or worn spark plugs
      Bad plug wires
      Weak ignition coil
      Wet plug wires
  • AutoMD Member
    AutoMD Member - 1999 Jeep Grand Cherokee - Transmissions & Drivetrains - 3/6/2014
    I have a 1999 grand cherokee and when I drive it pulls to the right and feels like more power comes from driver side.
    it is a rear wheel drive car but I don't know what's causing this pull it's only when I'm on the gas and when I lay off the car bounces left
    • Jimm
      3/6/2014 Jimm
      Several possibilities; faulty / worn engine mount, worn transmission mount, worn rear suspension or spring bushings.

      The parts are readily available from these many on-line sources,,,,, - to list only a few possibilities.
      In fact, they (RockAuto) list the engine mount from around $47.00 and the transmission mount from around $39.00 for your vehicle.
  • terrymaiese
    terrymaiese - 1997 Jeep Grand Cherokee - Transmissions & Drivetrains - 3/5/2014
    Herd a pop and wont go into drive, reverse, or neutral and makes a sound when put in park. is it worth fixing?
    133xxx miles. I notices it a few days ago and thought it was a loose rotor but last night it got louder then I herd a pop and now it wont go into anything but park and when it does it makes a grinding sound for a few seconds then quits.
    • Welder95
      3/5/2014 Welder95
      it sounds to me like you should check your clutch, if it is automatic you will need to get it rebuilt, if it is a manual you can fix it yourself, if you could find a shop to do it for cheap its worth it, if not getting a whole new transmission may turn out to be cheaper in the long run.
  • AutoMD Member
    AutoMD Member - 2005 Jeep Wrangler (TJ) - Transmissions & Drivetrains - 3/5/2014
    I installed a 3" lift kit, now i can not get my transfer case out of 4 wheel drive? How can i fix this problem?
    I put my 3" lift kit on and when I put it into 4 wheel drive I could not get it back out of 4 wheel drive. So, here I am with a 3" lift kit and can't use my 4 wheel drive. Please tell me what to do?
    • Jimm
      3/2/2014 Jimm
      Check with the manufacturer of the lift kit to see if the kit has affected the transfer case. Sometimes, simply adding a lift kit can change; suspesion geometry, steering, driveline angles for adverse reactions or results.
    • Welder95
      3/5/2014 Welder95
      first step would be to check your linkage, are you experiencing driveline vibration?
  • AutoMD Member
    AutoMD Member - 2005 Jeep Wrangler (TJ) - Transmissions & Drivetrains - 3/3/2014
    Installation of 3" lift kit
    I recently installed a 3" lift kit on my 2005 Rubicon Jeep, and now when I put the transfer case into 4 wheel i can not take it out of 4 wheel. What do I need to do to fix this problem?
    • Jimm
      3/3/2014 Jimm
      Check with the manufacturer of the lift kit to see if the kit has affected the transfer case. Sometimes, simply adding a lift kit can change; suspesion geometry, steering, driveline angles for adverse reactions or results.
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