Transmission Kit with Torque Converter 1. All Promaster (VF) 3.6L/62TE equipped vehicles. If the transmission bracket to the transmission case fasteners are removed during servicing, the fasteners (Part Number 06511385A$) are one-time usage. Vehicles built prior to 10/23/2015 requires Service Kit PN 68461214AA; includes Transmission Isolator PN 68264483AA, and Adaptation Bracket 68264479AA and Fastener Service Kit PN 68329056AA Vehicles built after on or after 10/23/2015 will require only the Fastener Service Kit PN 68329056AA. 2. All 3.6L/62TE equipped vehicles. If the vehicle you are repairing has a crack in the flex plate or failed pump bushing inspect and confirm that both (2) dowel pins
full bulletin at NHTSA ↗2008 Jeep Liberty powertrain problems
severe 24 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Failure mileage
Complaints
24
Recalls
0
Avg fix
$2,500
2crashes
1fire
1injury
When does it fail?
Of the 24 powertrain complaints filed for the 2008 Jeep Liberty, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA powertrain complaint has been filed on this vehicle in over 15 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Mechanical rocker arm, intake, 1.7 ratio.
full bulletin at NHTSA ↗(Revision A) No Start No Crank ? Starter Will Not Engage And There Are No Related Codes Or Concerns
full bulletin at NHTSA ↗Some of the above vehicles may experience a condition where the underbody transmission tunnel shield may partially separate from the vehicle floor pan and contact the aluminum driveshaft. Operating the vehicle with the transmission tunnel shield rubbing against the driveshaft could weaken the driveshaft at the rub point and cause it to break.
full bulletin at NHTSA ↗Some of the above vehicles may experience a condition where the underbody transmission tunnel shield may partially separate from the vehicle floor pan and contact the aluminum driveshaft. Operating the vehicle with the transmission tunnel shield rubbing against the driveshaft could weaken the driveshaft at the rub point and cause it to break.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Manual transmission owners describe violent gear popping—especially out of first gear into neutral—that dealerships addressed with synchro replacement under service bulletin 21-001-10, only to have the problem return within weeks or months. One owner's transmission failed completely at highway speed (I-25 in Denver), leaving the vehicle unable to engage any gear.
Automatic transmission failures include torque converter problems causing violent chatter when backing uphill (dealerships replaced both converter and driveshaft without stopping it), transmission seal leaks that persist after seal and housing replacement, hard shifting, and one burnt control module while towing light cargo.
A widespread electrical gremlin triggers uncontrolled power surges—lights, horn, wipers, and door locks activating on their own, trapping owners inside. Code P0883 appears intermittently.
Transfer case heat shields rubbing driveshafts and causing breakage triggered NHTSA recall 13V-121, but remedy parts remain unavailable at dealerships months after recall notice. One owner's vehicle wasn't even included in the recall despite showing identical symptoms.
Other critical faults: parking brake fails to hold on hills; traction control randomly activates on dry pavement, throwing the front end misaligned and nearly causing accidents; transmission won't start for 20–30 minutes due to heat-sensitive shift module placement; engine fire at manifold; fuel overflow during every fill-up; and severe front axle corrosion on original factory parts. Dealerships repeatedly claim inability to replicate problems or refuse further diagnosis.
Same Jeep Liberty powertrain reports on nearby years: 2005 · 2006 · 2007 · 2010
Failure modes owners describe
Manual Transmission Gear Popping/Synchro Failure
Manual transmission pops violently out of first gear into neutral, sometimes progressing to complete clutch malfunction where vehicle cannot engage any gear. Owners report dealerships replaced first and second gear synchronizers per service bulletin 21-001-10, but problem returned or worsened within months despite repair.
When: First reported after warranty repair in January 2013; recurred May-August 2013 intermittently, then routinely by December 2013-January 2014
Symptoms owners cite: Violent popping out of first gear into neutral; Loss of ability to safely turn or move on inclines; Complete clutch malfunction—cannot engage any gear; Vehicle rolls backward with no forward motion capability
Repairs/costs cited: Dealerships replaced first and second gear synchro (performed January 2013); second dealership performed 'complete diagnostic' with 13 test miles but could not replicate; problem recurred within 2 miles to 2 weeks of each dealership visit
Recalls/TSBs owners mention: Service Bulletin 21-001-10 (April 2010) called for replacement of first and second synchro; Chrysler issued bulletin but owners report continued failure after repair
Transfer Case Heat Shield Rubbing/Breaking Driveshaft
Transfer case heat shield drops down and rubs on driveshaft, weakening it and potentially causing driveshaft breakage. Broken driveshaft section can strike transfer case tunnel with enough force to trigger airbag deployment. Multiple owners report grinding/popping noise from rear; one owner's vehicle not included in recall campaign despite exhibiting symptoms.
When: Occurred at 194,232 miles; one owner with 53,000 miles reported recall issued but repair parts unavailable at dealerships
Symptoms owners cite: Grinding or popping noise from rear of vehicle; Heat shield detachment visible; Driveshaft rubbing damage
Repairs/costs cited: Heat shield repair parts were unavailable at multiple dealerships for extended periods (over 30 days to indefinite wait time)
Recalls/TSBs owners mention: NHTSA Recall 13V-121 / Chrysler Safety Recall N10 issued; Chrysler recall letter mentions heat shield and driveshaft risk but omits NHTSA information about potential airbag deployment from driveshaft striking transfer case tunnel; remedy parts not available at dealerships at time of complaints
Transmission Seal/Housing Leak with Unusual Knocking
Transmission fluid leaks abnormally from transmission seal area. Dealer replaced seal and housing extension, but leak persists. Vehicle exhibits unusual knocking when shifting gears. Abnormal acceleration incident occurred at 30 mph; problem unresolved.
When: Failure began at 1,850 miles; issue persisted at 45,000 miles
Symptoms owners cite: Abnormal transmission fluid leak; Unusual knocking noise when shifting; Abnormal acceleration (1 incident at 30 mph)
Repairs/costs cited: Dealership replaced transmission seal and housing extension; repair unsuccessful—leak continued
Check Engine/Traction Control Light with Sensor Code C121C
Check engine light illuminates followed by traction control light, usually after left-hand turns. Vehicle shows code C121C along with faulty cam and crankshaft sensor codes. Despite dealership replacement of cam and crankshaft sensors during warranty period, codes return within 20 miles of replacement, preventing overdrive engagement and normal acceleration. Vehicle shudders wildly above 50 mph when foot off gas.
When: Occurred while vehicle still under warranty; warranty expired before second occurrence
Symptoms owners cite: Check engine light and traction control light illuminate together; Loss of overdrive engagement; Reduced acceleration; Severe shuddering above 50 mph when coasting
Codes mentioned: C121C, Faulty cam sensor codes, Faulty crankshaft sensor codes
Repairs/costs cited: Dealership replaced cam and crankshaft sensors during warranty; owner later replaced them twice more after code return within 20 miles each time; persistent failure
Recalls/TSBs owners mention: Jeep refused to warranty drivetrain despite owner's claim of 100,000-mile warranty coverage on drivetrain
Electrical Gremlin—Uncontrolled Power Surges/Door Locks/Lights
Vehicle experiences uncontrolled power surges with multiple systems activating independently: lights flashing, horn sounding, wipers squirting, door locks operating without input. Ignition key becomes inoperable; vehicle cannot be exited in one instance. In second incident, vehicle trapped in park and engine continues running despite key removal. Error code P0883 occasionally appears. Jeep repaired vehicle once under warranty for same fault, but problem recurs.
When: Problem is intermittent and recurring; one incident occurred while vehicle parked, another while approaching junction at 10 mph
Symptoms owners cite: Lights flashing uncontrollably; Horn sounding without input; Windshield washers squirting without input; Door locks operating without input; Ignition key inoperable; Vehicle trapped in park; Engine running after key removal; Vehicle cannot be exited; Uncontrollable power surges
Codes mentioned: P0883
Repairs/costs cited: Jeep repaired vehicle once under warranty for same fault; removing battery connections temporarily resets system until problem recurs
Recalls/TSBs owners mention: After warranty expiration, Jeep response was only 'vehicle out of warranty, see your dealer'; described as systemic problem with numerous complaints in Jeep forums
Transmission Will Not Start After Short Cool-Down (Shift Module Thermal Issue)
Vehicle will not start for 20–30 minutes after being driven and turned off. No check engine codes, no overheating, no hot running condition. Reported as issue with transmission shift module positioned too close to heat source, preventing module from recognizing vehicle is in park until engine cools. If turned off less than 5 minutes there is no issue; 5+ minutes off requires 20–30 minute wait. Remote start works if used before timeout.
When: Started several months prior to complaint; exact date unknown
Symptoms owners cite: Inability to start for 20–30 minutes after short driving sessions; No check engine codes displayed; No overheating condition; Remote start works as workaround if used before timeout
Repairs/costs cited: Spark plugs, spark plug wires, alternator, and battery already replaced without resolving issue
Parking Brake Failure—Hydraulic System
Parking brake fails to engage on automatic transmission vehicle. With parking brake fully engaged and transmission in neutral, vehicle rolled backward and struck wall, causing minor right front fender damage. Owner notes identical recall exists for manual transmission (Chrysler Recall H28) but not automatic, though both use same parking brake system.
When: Vehicle parked on driveway
Symptoms owners cite: Parking brake fully engaged but does not hold vehicle; Vehicle rolls backward uncontrollably
Recalls/TSBs owners mention: No recall issued for automatic transmission despite identical recall for manual transmission vehicles using same parking brake system (Chrysler Recall H28)
Transmission Pan Corrosion/Rust—Premature Deterioration
Transmission pan is rusting and corroding, leaking fluid onto exhaust manifold and surrounding components. Pan surface is painted but rusting beneath paint, indicating inadequate paint preparation during manufacturing. Exhaust converter and Y-pipe located very close (within 3 inches), creating extreme heat environment. Owner reports burning smell every morning.
When: Discovered during second year of ownership; rusting occurred over extended period beforehand
Symptoms owners cite: Transmission fluid leak from corroded pan; Burning smell from fluid on hot exhaust; Visible rust on painted pan surface
Recalls/TSBs owners mention: Chrysler declined coverage, stating they do not cover rust and corrosion as manufacturing defect
Torque Converter/Driveline Chatter on Reverse Uphill
Vehicle chatters, shudders, or jerks violently when backing up on incline, present since new. Dealership installed torque converter and new rear driveshaft on separate visits. Local transmission shop attributed problem to front U-joint stiffness in one direction, stiff slip yoke, and slow hill brake release; replaced driveline but problem continued. Chrysler and dealership told owner this is 'the nature of the beast' and refused further diagnosis.
When: Problem present since new vehicle
Symptoms owners cite: Violent chattering/shuddering/jerking when backing up on incline
Repairs/costs cited: Dealership installed torque converter (no result); installed new rear driveshaft (no result); transmission shop replaced driveline after diagnosing stiff U-joint and slip yoke (no result)
Recalls/TSBs owners mention: Chrysler and dealership refused further service, claiming issue is normal ('the nature of the beast'); dealership service rep reported seeing several other 2008 Liberties with same problem
Unintended Acceleration—Engine Revs in Reverse
Engine revved up on its own while vehicle in reverse with driver's foot on brake, causing vehicle to shoot backward at top speed. Vehicle hit and toppled a light post before hitting a tree. Owner found online documentation of at least 31 similar incidents with 2008 Jeep Liberty.
When: Occurred February 17 during parking maneuver
Symptoms owners cite: Engine uncontrolled rev-up while in reverse; Sudden high-speed backward acceleration; Loss of brake control ability
Transmission Control Module Burnt—Stuck in Gear
Transmission control module completely burnt out while towing 9x12 U-Haul trailer (less than 300 lbs cargo). Transmission seized in gear; vehicle driving at 45 mph unable to shift into overdrive, locked at 4000 rpm. Transmission would not shift at all.
When: February 12, 2010; vehicle equipped with tow-haul mode
Symptoms owners cite: Complete burnt transmission control module; Transmission seized in gear; Unable to shift gears or engage overdrive; Vehicle locked at high rpm (4000 rpm at 45 mph)
Traction Control Malfunction—Random Activation on Dry Pavement
Traction control system randomly activates on dry pavement without cause, braking individual wheels and throwing front end out of alignment. Activation accompanied by noise and smoke at braked wheel. Owner reports nearly causing several accidents. Dealership replaced front brakes and rotors without resolving issue, then recommended new driveshaft, tie rods, and front-end pieces, which owner believes are incorrect diagnosis.
When: Intermittent; traction control light comes on during driving
Symptoms owners cite: Traction control light comes on intermittently while driving; Random brake engagement on one wheel on dry pavement; Noise from brake system during engagement; Smoke from engaged wheel; Front-end thrown out of alignment by single-wheel braking; Loss of steering control during engagement
Repairs/costs cited: Dealership replaced front brakes and rotors (no result); dealership then recommended driveshaft, tie rods, and other front-end components
Transmission Shifting Hard/Clunky with Weak Fluid Flow
Transmission shifting is clunky and rough. Transmission fluid has been changed without improvement. Weak air flow from vents despite replacement of blower fan and relay. Power steering difficult to turn. Owner reports transmission seems 'off all of the time.' Related to fuel filler issue where vehicle spews gasoline during refueling.
When: Ongoing issue
Symptoms owners cite: Clunky, hard shifting; Weak HVAC airflow from vents; Difficult power steering
Repairs/costs cited: Transmission fluid changed without resolving issue; blower fan and relay replaced for HVAC without resolving weak airflow
Front Axle Severe Corrosion—Original Factory Parts
Front axles show extreme heavy corrosion beyond typical wear; steel easily removed by hand. Axle nut no longer present on both sides. Affects both front axles but no other steel parts show same corrosion. Original factory Jeep parts. Vehicle was stationary when issue discovered.
When: Discovered while vehicle stationary; original factory parts
Symptoms owners cite: Severe corrosion on both front axles; Steel easily removed by hand; Missing axle nuts; Corrosion isolated to axles only
Engine Fire—Manifold Origin
Fire started in engine compartment at engine manifold. Owner gifted vehicle to son-in-law for use as station vehicle. Owners took pictures of fire damage. No recall or acknowledgment of problem from manufacturer.
When: Incident occurred; exact timing not specified
Symptoms owners cite: Engine compartment fire; Fire originating at engine manifold
Recalls/TSBs owners mention: No recall issued; no manufacturer acknowledgment of problem
Fuel Filler Overflow—Gasoline Spewing During Refueling
Vehicle spews gasoline all over vehicle, driver, and ground every time fuel tank is filled, regardless of fill speed (fast or slow). Owner considers vehicle dangerous and describes transmission as 'off all of the time.'
When: Occurs with every refueling
Symptoms owners cite: Gasoline overflow during refueling at any speed; Fuel sprays on vehicle, driver, and ground
Grinding Noise at 40 mph—Torque Converter or Driveline Issue
New vehicle (800 miles) developed grinding sound at 40 mph. Torque converter replaced without resolving issue. Service rep test-driving vehicle to identify cause.
When: Appeared at 800 miles on new vehicle
Symptoms owners cite: Grinding noise at 40 mph
Repairs/costs cited: Torque converter replaced without resolving issue
Synthesized from 24 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
2008 Jeep liberty chatters when backing up slight incline. Problem since new. Still under warranty. Dealer installed torque converter and new rear drive shaft on two different visits. Neither solved issue. Dealer and Chrysler told me that this is "...the nature of the beast." local service rep. Told me that he's driven several with same problem. Chrysler refuses to go any further with solving…
The parking brake failed to engage on my 2008 Jeep liberty automatic transmission. While the parking brake was fully engaged with the Jeep in neutral the Jeep rolled backward and struck the wall causing minor right front fender damage. Fortunately the Jeep hit the wall stopping it from rolling down the driveway into traffic or running over pedestrians. Note; there is a recall on the 2008…
Had powertrain trouble with your 2008 Jeep Liberty?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2008 Jeep Liberty?
It's a meaningful issue. 24 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $2,500.
At what mileage does the powertrain typically fail?
Across the 18 complaints that reported odometer mileage, most powertrain failures cluster between 46,000 and 94,000 miles, with the median around 80,000. A quarter of owners report trouble before 46,000; a quarter make it past 94,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2008/Jeep/Liberty.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.