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Jeep Liberty Transmission Problems



  • Mr_ShiftrightMr_Shiftright CaliforniaPosts: 44,403
    If you have a CAI with the K&N, that can lean out mixture, yes.

    With just a drop-in K&N, you are doing absolutely nothing to the engine except at WOT, because you have a throttle plate regulating air flow anyway.

    Rainy weather creates a denser fuel charge, so that effect makes perfect sense.


  • So I have this error code, P0838 in the haynes book it say it means 4wd mode sensor low. I can not get my liberty to shift when then speed reaches 35. So basically i can not go faster than 35. I have had previous problems with my 4wd not disengaging in the past. I have no clue what to do besides dynamite. So if anyone out there can give me some suggestions, i would be grateful. Thanks... :confuse:
  • Hello Yes, I should have been here when I bought my CRD but its better late then never. I have had this 2006 liberty CRD and it looks like the front pump when
    after 26,000 miles. Its out of warranty by 1 month and has been great. If indeed I
    can not get jeep to fix this under warranty who makes a good 5 or six speed after market transmission for replacement? I really enjoy the gas mileage and performance I get from the CRD and have realized they is not a reasonable replacement on the market for less the $40,000. So what can I do to fix it so
    I don't continue to have problem.
  • bsitzbsitz Posts: 1
    Yesterday while driving my 06 jeep liberty i put it into part time 4 wheel drive...i backed out of drive way to drive to work and the truck just will not go into reverse while in part time 4 wheel drive. Later on i wanted to check it out again to see if something was wrong and checked the hi neutral and lo....whiel in lo i couldnt get it back into neutral...then once i got it into neutral i couldnt get it into hi....after about 10 minutes it finally got into it but i smelled tranny fluid......any idea whats up?
  • ">Okay where to begin....

    I have a 2003 5 speed manual transmission Jeep Liberty. My truck has been running good up until now. Wednesday driving was fine but thrusday not the same issue. Thursday I went on an errand and notice I have having problems shifting. I felt like I was working against the gears. I fought to get into gear. Sometimes the gears would grind or even pop out of gear or it would shift really hard. That day I took it to a friend that works at a dealership didn't know if he could help me. He wasn't sure what was wrong with it because it wasn't his expertise. I have an on going issue with the transmission mount. When I had my oil change the mechanic there explained that the one of the housings that the bolt mounts to is cracked and needed to be replaced. He told me is wasn't a must-fix-this-minute thing but SHOULD be fixed ASAP. They were suppose to call me about parts and $ but never did. Then I kind of forgot about it. Well my friend that took a look at my truck said that the crack mount could be a factor but doesn't know for sure. He did say the cracked part is a serious problem and needs to be fixed. Upon looking at the crack, I noticed it's the actual transmission mount/assembly and the whole thing would need to be replaced. Oh Boy! But would replacing that fix my problem. Then friday I went on an errand again and it was worse. I had to jam it into gear. I mean all my strength to get into gear. I decided it wasn't safe to drive and turned around to go home. At my last stop sign I put it in neutral and then I couldn't get back into gear. I tried 1st and 2nd and no luck. I ended up having to push my car down the street into my driveway. I really don't know how to diagnosis this problems. I have been told just in talking that it could be A. the cracked bolt mount B. sync rose C. transmission D. clutch E. throw out bearing. Can someone shed some light on this issue because I need my car!!! I am a college student that works full time and this is my only line. Needless to say I need to do something ASAP. Please help.
  • caribou1caribou1 Posts: 1,349
    If you have a 2WD, to check the gearbox you can put the rear differential/axel on jacks, remove both wheels and gently select all gears without using the clutch and engine stopped. Now there is no effort coming from the transmission line, so you can evaluate the accuracy of the shifting mechanism. At this point if you can't shift easily you need to worry :cry:

    Then start the engine without any gear engaged and check for unusual transmission noise. This will tell you the status of the clutch alignment with the gearbox. If the gearbox is severely misaligned you should hear a complaint from the bearings and the splined shaft that reaches into the clutch plate + mechanism.

    Then you try shifting gears using the clutch with engine still running. If you hear cracking sounds while you shift then you can incriminate the synchromesh 'roses'.

    All previous tests put no load on the transmission. When you are on the road you torque the transmission in both directions (+/-) and gears may want to 'let go' when they are severely damaged. This is different from synchromesh wear that has a function of putting two pieces at a same speed of rotation just before penetration of the annular splines/fingers/cogs machined on the gears that are engaged. The synchromesh is a 'consumable' compared to the gears.

    Bonne chance

    ps: the throw out bearing can only get noisier than usual but will not affect the transmission as such unless it explodes and permanently separates the clutch plates (not seen this yet!). If the clutch pressure plate is damaged, you will feel it with your foot when you press the pedal. A broken pressure plate mechanism will sound like a charm bracelet worn by a very old lady with Parkinson disease.

    By putting the truck on jacks, you simulate the usual 'stress' on the transmission and suspension elements; if a fixation element is broken, it will not relax into it's original shape.
  • Same thing happened to my daughter's 2002 Liberty. Driving down the road last week, for no apparent reason, the transmission locks up. Dealer did $300 worth of tests (eat doughnut, drink coffee, read paper, plug in test equipment, come back, read test results, go to lunch, etc..), and said car needs a $2,000 - $6,000 tranny rebuild. $2000 to "open up, poke around, replace gears," or 3-4 more thousand to replace transmission. Too bad, I just put 5 new tires on the jeep. Time to by a Toyota I guess. Too bad.

    Note: can't do a CARS clunkers trade in as jeep has to be in "running condition." Who was the stupid politician who though of that. This jeep is not just a clunker, it's a $10,000 flower pot :cry: .
  • My 2003 Liberty Sport has been running just fine UNTIL I took it in for the 60K service. I took it to a dealer that USED to be a Jeep Dealership, but lost that recently when Chrysler lost some dealerships. This dealership told me that even though they no longer sell Jeeps, they still service them and encouraged me to have my 60K service done there.

    So after I get the Jeep back I notice there's a harsh 4-3 downshift. I bought the vehicle NEW in 2003 and it NEVER did this before. I take the Liberty back to the shop and tell them to fix it. They say they take everything apart and re-check all of their work and that it's nothing that they did. They then tell me that there is a "TSB" about this problem but that they can't help me because they are no longer a Jeep dealership. They tell me I need to go to a Jeep dealership now.

    #1. Is it possible they screwed something up when they were "servicing" the tranny? What are the odds that this problem just happened to start at the very same time they "service" the tranny but the 2 aren't related? Give me a break!

    #2. Why should I have to pay for another shop to take care of a problem when this shop told me they could service the Jeep? Weren't they being dishonest?

    #3. I paid this dealership over $800 when all was said and done for the 60K service! Is it possible they did the complete 60K service when they can't fix this "software" problem that a real Jeep dealership can supposedly easily?
  • Do you ever figure this out ??
    We're having the same issues
  • My 2006 CRD now has 90k miles on it and I have never had any transmission problems that I know of. I don't recall having any warranty work or recall work done at the dealer either. Last week I experienced two (2) similar events that have me concerned. The first time I was in Full Time 4WD and slowing at an ice and snow covered intersection. The tranny failed to disengage, I heard and felt some noise/vibration and it started to drag us into the intersection until I really jammed on the brakes hard and it finally disengaged. The second time I was on drive pavement in 2WD and approaching an intersection. Again the tranny was pulling in idle against the brakes as I approached the intersection. This time I jammed on the brakes hard enough to stall the engine. Once I restarted, the tranny seemed to work OK. About a month ago I had the transmission pan dropped, both filters replaced, and new fluid at my local AAMCO Shop. Since my warranty is expired I try to avoid trips to my Jeep Dealer for service. Any advice or suggestions would be appreciated.
  • This could be a problem with the throttle control module. The CRD has enough torc it can easy lee over power the brakes if the system is not falling back to ideal.
  • What happened with this? I having the same problem with my 2003 Liberty Sport 4x4 - took it in for 75K service and got it back with the slip. Jeep won't pay for another dealer to look at it. I feel like this is a service scam and I'm being ripped off and totally inconvenienced. Dealer says they can't do anything about it and want me to plead with Jeep to cover the work as I am past the 70K limit. A minor version of this happened when I previously had the fluid changed (lived in another state), took it back the next day and it was corrected.
    Anyone else having this problem and found a solution?
  • grod1grod1 Posts: 1
    I have a 2005 liberty with 68000 miles.the problem I am having is the jeep shifts in to overdrive too early.when I accelerate it shifts normal but goes into high at about 40-45 mph,but I have to give it more "gas" ,then it down shifts until it gets to around 60 mph.the only way to eliminate the problem is to really get on it from the start,then relax the acceleration when my speed is aquired,then it goes to overdrive.thank -you for any advice. tranny has been recently flushed,but original filter I assume.
  • I started having problems with my Jeep Liberty tonight. When I was on the freeway I heard this "bang" and then the truck jerked, after that I had loss of power, After I pulled to the side I turned the motor off, waited 30 seconds and started the truck, it was find and lasted that way for the rest of the evening. Does anybody know what happen. I am taking it in tomorrow.
  • Thanks for the response. I will look into the throttle control module. I have noticed a very small deviation in RPM when the problem seems to occur. At 700 RPM (nomal idle) there is no problem. At 725 to 750 RPM (hard to tell) the tranny keeps pulling against the brakes. My temporary "work-around" is to slip it onto neutral any time I feel I am braking against the transmission. I think I need to take it to the dealer to have the PCM scanned. Since my alternator failed & drained the battery I have had some strange things happen. The tranny problems started about that time and I get occasional lights on and off on the dash. Maybe I need a "reflash" or update or something. AAMCO transmission could not get anything from their scan so they told me to take it to a dealer.
  • hermithermit Posts: 15
    05 CRD 91k miles on it. Shifting rough at 20mph, worse when accelerating slowly, whole jeep will jerk when shifting. Usually does at first start up, then once or twice more then works self out. Occasional rough shift at 40-45 mph. Had torque converter recall done in 2006.
    Taken to dealer 4 times and they could not reproduce problem. Had computer flashed and all fluids, filters etc done. This has been going on for 6 months.

    Finally got service tech to feel it this am. Service rep working with my extended warrantly company.

    I have the feeling extended warranty company will try to weasel out of this. Adjuster meeting my service rep tomorrow to go over repairs. Also have turbo and intercooler/boost tubes issues going on.

    Any ideas on what could be causing the transmission issues? The more info I have the better.

    Thanks in advance (still love the vehicle, just need her fixed) :sick:
  • matchbox...

    We are having the very exact same problem. They replaced internal transmission module but the problem exists still. What was the result of your issue?
  • benibiker, how did that transmission controller repair work out for you?
  • I have a 2003 Jeep Liberty 2x4 / 4 speed AT. I purchased this vehicle new in Q3 of 2003. The dealer recommended a trans service while in for the 30K service (early 2006). Upon p/u, I noticed a hard upshift between 1st & 2nd gear & also a very hard downshift from 4th to 3rd. I brought it back to the dealer & they re-flashed the trans. This fixed the hard downshift between 3rd & 4th but the hard shift between 1st & 2nd remained. They adamantly explained that it was working properly & sent me on my way.

    Fast forward to June 2010… my jeep now has 56K miles. The hard shift between 1st & 2nd is still there but another problem between 3rd & 4th has presented itself. There is a hesitation between 3rd & 4th gear & the engine revs/tach spikes before it hits 4th gear. I took it to the dealer & they broke down the trans. They tell me I need a new trans. Luckily, this is covered under the 7/70K Powertrain warranty. Then they tell me that I am getting a remanufactured trans. When I ask what type of warranty comes with this "new" remanufactured trans, they tell me that there is no additional warranty - that I only get the remainder of the original 7/70K Powertrain warranty.

    Questions: 1. Has anyone else had this problem/situation? 2. If so, how was it resolved & were you pleased w/the results? 3. Should I be concerned with receiving a "remanufactured" trans as opposed to a "new" trans? 4. Is it standard practice to not warranty something like this (parts &/or labor)?

    Thanks for the info!
  • vannadrewvannadrew Posts: 1
    Does anyone know if the transmission computer and the engine computer are integerated in the 2003 model or are they seperate?
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