The WJ Grand Cherokee is a capable SUV undermined by a notoriously fragile 45RFE/545RFE automatic transmission and a tendency for the 4.7L V8 to drop valve seats or lose cylinder heads. The 4.0L I6 is bulletproof by comparison, but both engines suffer from cooling system neglect.
45RFE/545RFE Transmission Failure
Common · high severity
Typical onset: 80,000-140,000 mi
Symptoms: Harsh 2-3 shift or slipping between gears, Delayed engagement into Drive or Reverse, Transmission overheating, burnt fluid smell, Check engine light with P0750, P0731, P0734 codes
Fix: Factory transmission oil cooler inside the radiator fails, sending coolant into trans fluid and destroying clutch packs. Requires rebuild or replacement (8-12 hours labor) plus external cooler installation. Many shops recommend replacing the radiator simultaneously to prevent repeat failure.
Estimated cost: $2,800-4,500
4.7L V8 Valve Seat Recession and Head Cracking
Occasional · high severity
Typical onset: 120,000-180,000 mi
Symptoms: Cylinder misfire codes, usually on one bank, Loss of compression in one or more cylinders, Coolant consumption without visible leaks, Ticking noise that worsens when engine is hot
Fix: Early 4.7L engines (especially '99-'04) drop exhaust valve seats or crack heads between valves due to metallurgy issues. Requires cylinder head removal and replacement or machine work (12-16 hours labor). Often discover damage during misfire diagnosis.
Estimated cost: $2,200-3,800
Front Lower Control Arm Bushing Failure
Common · medium severity
Typical onset: 70,000-110,000 mi
Symptoms: Clunking over bumps or during braking, Steering wander or vague on-center feel, Uneven tire wear on inner edges, Visual cracking or separation of rubber bushings
Fix: Factory control arm bushings are rubber and deteriorate quickly. Many techs replace entire control arms rather than pressing bushings (2.5-3.5 hours labor for both sides). Alignment required after replacement.
Estimated cost: $450-750
EVAP System Leaks and Purge Valve Failures
Common · low severity
Typical onset: 60,000-120,000 mi
Symptoms: Check engine light with P0455, P0456, P0457 codes, Fuel smell near filler neck or under vehicle, Difficulty fueling, pump clicks off repeatedly, Hissing sound from fuel tank area when opening gas cap
Fix: EVAP canister purge valve sticks open, or vapor lines crack at connections. Diagnosis requires smoke test (0.5 hours). Purge valve replacement is simple (0.3 hours), but chasing line leaks or replacing the canister can take 2-3 hours.
Estimated cost: $150-600
Cooling System Deterioration
Common · high severity
Typical onset: 90,000-150,000 mi
Symptoms: Overheating in traffic or under load, Coolant leaks from water pump weep hole, Radiator end tanks cracking or leaking, Heater core leaking onto passenger floorboard
Fix: Plastic radiator end tanks crack, water pumps fail, and heater cores leak. Many owners neglect coolant flushes, accelerating corrosion. Water pump replacement on 4.7L V8 is 3-4 hours; radiator is 2-3 hours; heater core requires full dash removal (8-10 hours labor).
Estimated cost: $400-1,800
Rear Differential Pinion Seal Leak
Occasional · medium severity
Typical onset: 80,000-130,000 mi
Symptoms: Gear oil dripping from front of rear diff or onto driveshaft, Low differential fluid on dipstick or fill check, Whining noise from rear axle under acceleration, Visible oil coating on differential housing
Fix: Pinion seal hardens and leaks. Requires driveshaft removal and pinion nut torque reset to spec (2-3 hours labor). If ignored, low fluid destroys ring and pinion gears, requiring full diff rebuild.
Estimated cost: $350-550
Blend Door Actuator Failure (HVAC)
Common · low severity
Symptoms: Clicking or ticking noise from dashboard when adjusting temperature, No heat or AC on one side (dual-zone systems), Temperature stuck on hot or cold regardless of setting, Airflow direction won't change between vents
Fix: Plastic blend door actuators strip gears or seize. Depending on which actuator fails, repair ranges from simple (glovebox removal, 1 hour) to nightmare (full dash removal, 6-8 hours). Driver side blend door is the worst offender.
Estimated cost: $120-900
Owner tips
Install an external transmission cooler immediately and flush trans fluid every 30,000 miles — the factory cooler-in-radiator design is a ticking time bomb.
4.7L V8 owners should use quality coolant, change it every 3 years, and watch for misfires early — head jobs are expensive.
4.0L I6 is the more reliable engine choice but still needs diligent cooling system maintenance.
Budget for front suspension work around 80k miles — control arms, ball joints, and sway bar links all wear together.
Check for rust in rear wheel wells and lower tailgate — these are known rot zones in snow-belt states.
Buy the 4.0L I6 version if you must, budget $1,500 for deferred maintenance, and install a trans cooler on day one — the 4.7L V8 is a gamble you'll likely lose.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
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Chrysler (FCA US LLC) is recalling certain model year 2002-2003 Jeep Liberty vehicles manufactured January 9, 2001, to March 28, 2003, 2002-2004 Jeep Grand Cherokee vehicles manufactured February 13, 2001, to May 23 2003, and 2003-2004 Dodge Viper vehicles manufactured November 1, 2001, to June 30, 2004. Due to electrical noise beyond the tolerance of the air bag electronic control module (ECM), a component in the ECM may fail, causing the front air bags, side air bags, and/or seatbelt pretensioners to deploy inadvertently while the vehicle is being operated.
Consequence: Inadvertent deployment of the air bags may increase the risk of injury and the possibility of a vehicle crash.
Remedy: Chrysler dealers will replace the air bag control module and side impact sensors as required, free of charge. This recall remedy was applied during earlier recall campaigns of these vehicles under safety recalls 12V527 and 13V040. All owners that have not had the recall repair performed under safety recalls 12V527 or 13V040 are strongly encouraged to have it performed and not wait for the final remedy to be deployed to the field. The recall began on December 29, 2015. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is R06.
AIR BAGS · 12V527000
2012-11-08 · EA12001
Chrysler is recalling certain model year 2002 and 2003 Jeep Liberty vehicles manufactured January 9, 2001, through March 28, 2003, and 2002 through 2004 Jeep Grand Cherokee vehicles manufactured February 13, 2001, through May 23, 2003. A component in the air bag control module may fail causing the front airbags, side curtain airbags, and/or seatbelt pretensioners to deploy inadvertently while the vehicle is being operated.
Consequence: Inadvertent deployment of the airbags may increase the risk of injury and the possibility of a vehicle crash.
Remedy: Chrysler will notify owners, and dealers will install a supplemental jumper harness to the airbag control module, free of charge. Owners were notified of the recall by interim letter in January 2013. The remedy for affected Liberty vehicles is expected to be available in April 2013. The remedy for affected Grand Cherokee vehicles is expected to be available later in the year. Owners may contact Chrysler at 1-800-247-9753.
EXTERIOR LIGHTING:HEADLIGHTS · 09E025000
2009-05-11
DOPE, INC. IS RECALLING 42,540 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THESE LAMPS DO NOT CONTAIN THE REQUIRED AMBER SIDE REFLECTORS.
Consequence: DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.
Remedy: DOPE, INC. WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE SAFETY RECALL BEGAN ON JULY 28, 2009. OWNERS MAY CONTACT DOPE, INC. AT 1-626-272-1798.
CHRYSLER IS RECALLING 103,409 MY 2001-2004 JEEP GRAND CHEROKEE VEHICLES WITH HEATED SEATS AND WITH CHRYSLER RECALL NO. 06V-197 COMPLETED (03-04 MY) OR SEAT HEATER ELEMENTS SERVICE REPLACEMENT (01-02 MY). THE FRONT SEAT ELECTRIC HEATER ELEMENTS COULD OVERHEAT.
Consequence: OVERHEATING COULD POTENTIALLY CAUSE A FIRE OR INJURY.
Remedy: DEALERS WILL REPLACE THE FRONT SEAT HEATER ELEMENTS FREE OF CHARGE. THE RECALL BEGAN ON NOVEMBER 23, 2009. OWNERS MAY CONTACT CHRYSLER AT 1-800-853-1403.
EXTERIOR LIGHTING · 09E012000
2009-04-07
SABERSPORT IS RECALLING 16,270 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THESE LAMPS DO NOT CONTAIN THE REQUIRED AMBER SIDE REFLECTORS.
Consequence: DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.
Remedy: SABERSPORT WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE SAFETY RECALL BEGAN ON MAY 11, 2009. OWNERS MAY CONTACT SABERSPORT AT 1-909-598-7589.
EXTERIOR LIGHTING · 06E064000
2006-07-17
CERTAIN TRADESONIC COMBINATION LAMPS SOLD AS REPLACEMENT LAMPS FOR USE ON THE ABOVE LISTED PASSENGER VEHICLES. COMBINATION LAMPS NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.
Consequence: LACK OF AMBER SIDE REFLECTORS IN THE LAMPS WILL DECREASE LIGHTING VISIBILITY TO OTHER DRIVERS AND MAY POSSIBLY RESULT IN A VEHICLE CRASH.
Remedy: TRADESONIC WILL NOTIFY OWNERS AND REPLACE THE LAMPS FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN DURING JULY 2006. OWNERS MAY CONTACT TRADESONIC AT 626-934-8884.
ON CERTAIN SPORT UTILITY VEHICLES EQUIPPED WITH HEATED SEATS, THE FRONT PASSENGER SEAT ELECTRIC HEATER ELEMENT COULD OVERHEAT.
Consequence: OVERHEATING COULD POTENTIALLY CAUSE A FIRE.
Remedy: DEALERS WILL REPLACE THE HEATED SEAT ELEMENTS. THE RECALL BEGAN ON JULY 24, 2006. OWNERS MAY CONTACT DAIMLERCHRYSLER AT 1-800-853-1403.
SERVICE BRAKES, HYDRAULIC · 06E022000
2006-03-13
CERTAIN AFTERMARKET BRAKE HYDRAULIC MASTER CYLINDERS SOLD AS REPLACEMENT BRAKE CYLINDERS FOR CERTAIN FORD, DAIMLERCHRYSLER, AND JEEP PASSENGER VEHICLES. THESE BRAKE CYLINDERS WERE SOLD UNDER THE BRAND NAMES OF NAPA, RAYBESTOS, AIMCO, AC DELCO, CARQUEST, BENDIX, AND WAGNER. ONLY PRODUCTS THAT WERE MANUFACTURED FROM JULY 27, 2005 THROUGH JANUARY 17, 2006 (DATE CODES 0529 THROUGH 0602) ARE SUBJECT TO THIS RECALL. WHEN SUBJECT TO VERY COLD TEMPERATURES, AN INTERNAL SEAL IN THE MASTER CYLINDER COULD LOSE FLEXIBILITY AND MAY CAUSE BRAKE FLUID TO LEAK.
Consequence: LOSS OF BRAKE FLUID CAN LEAD TO A DECREASE IN BRAKE LINE PRESSURE AND AN INCREASE IN STOPPING DISTANCE, WHICH CAN RESULT IN A VEHICLE CRASH.
Remedy: AFFINIA (BRAKE PARTS, INC.) WILL REPLACE THE SUBJECT BRAKE HYDRAULIC MASTER CYLINDERS FREE OF CHARGE. THE RECALL BEGAN ON MARCH 20, 2006. OWNERS CAN CONTACT AFFINA GROUP CUSTOMER SERVICE AT 1-800-323-0354.
EXTERIOR LIGHTING:HEADLIGHTS · 06E023000
2006-03-13
CERTAIN ANZO COMBINATION HEADLAMP ASSEMBLIES SOLD AS REPLACEMENT LAMPS FOR USE ON CERTAIN PASSENGER VEHICLES. SOME COMBINATION LAMPS ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS WHICH FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT."
Consequence: WITHOUT THE AMBER REFLECTORS, THE VEHICLE WILL BE POORLY ILLUMINATED, POSSIBLY RESULTING IN A VEHICLE CRASH.
Remedy: ANZO WILL NOTIFY OWNERS AND REPLACE THE HEADLAMPS FREE OF CHARGE. THE RECALL BEGAN MAY 9, 2006. OWNERS MAY CONTACT ANZO USA AT 909-468-3688.
CERTAIN AFTERMARKET AIRTEX ELECTRIC FUEL PUMPS INSTALLED FOR USE AS REPLACEMENT EQUIPMENT FOR CERTAIN 1997-2004 JEEP WRANGLER; 1997-2001 JEEP CHEROKEE; 1997-2004 JEEP GRAND CHEROKEE; AND 2000-2003 DODGE DAKOTA VEHICLES. THE PLASTIC ELECTRICAL GROMMET CONNECTORS AT THE TOP OF THE FUEL PUMP MODULE ARE NOT COMPATIBLE WITH AUTOMOTIVE FUELS AND MAY DEGRADE CAUSING A POTENTIAL LEAK PATH FOR FUEL.
Consequence: IN THE PRESENCE OF AN IGNITION SOURCE, A FUEL LEAK COULD RESULT IN A FIRE.
Remedy: AIRTEX WILL NOTIFY ITS CUSTOMERS AND WILL REPLACE THE AFFECTED FUEL PUMPS FREE OF CHARGE. THE RECALL BEGAN ON JANUARY 25, 2006. OWNERS MAY CONTACT AIRTEX CUSTOMER SERVICE DEPARTMENT AT 1-800-880-3056.
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