The 2004 Grand Cherokee WJ is a capable platform undermined by serious transmission cooling issues and head gasket failures on the 4.7L V8. The 4.0L I6 is more reliable but underpowered for the chassis weight.
Transmission Oil Cooler Failure Leading to Coolant Contamination
Common · high severity
Typical onset: 80,000-150,000 mi
Symptoms: Pink or strawberry milkshake appearance in transmission fluid, Transmission slipping or delayed engagement after cooler rupture, Overheating transmission followed by complete failure, Coolant loss with no external leaks
Fix: The internal radiator-mounted transmission cooler ruptures, mixing coolant and ATF. Requires radiator replacement, transmission fluid flush (or full rebuild if contamination circulated), and external cooler installation. Prevention is installing an aftermarket external cooler BEFORE failure. If caught early: 3-4 hours labor. If transmission damaged: add 12-18 hours for rebuild.
Estimated cost: $800-1,200 preventive; $3,500-5,000 after trans damage
4.7L V8 Head Gasket Failure
Common · high severity
Typical onset: 100,000-180,000 mi
Symptoms: White smoke from exhaust on cold start, Coolant consumption without visible leaks, Overheating under load, Rough idle and misfires as failure progresses, Milky oil if severe
Fix: The 4.7L PowerTech V8 develops head gasket leaks, particularly between cylinders and coolant passages. Proper fix requires both heads removed, decked if warped, new gaskets, and timing components while apart. 14-18 hours labor. Many shops find cracked heads upon removal, requiring replacement or machine work.
Estimated cost: $2,500-4,200
Front Lower Control Arm Ball Joint Failure
Common · high severity
Typical onset: 60,000-100,000 mi
Symptoms: Clunking over bumps from front suspension, Wandering or loose steering feel, Uneven tire wear on inside edges, Visible play when prying on wheel with vehicle raised
Fix: Ball joints are pressed into the lower control arms and fail frequently. Most techs replace entire control arms with new ball joints rather than pressing in replacements due to labor overlap. Alignment required after. 2.5-3 hours per side, but smart to do both fronts simultaneously.
Estimated cost: $600-900 both sides
Transfer Case Mode Shift Motor Failure (4WD models)
Occasional · medium severity
Typical onset: 70,000-120,000 mi
Symptoms: Service 4WD light illuminated on dash, Inability to shift into or out of 4WD modes, Grinding or clicking from transfer case area when selecting 4WD, Stuck in 4WD Low or part-time 4WD
Fix: The electronic shift motor on the NV242 or NV247 transfer case fails, leaving you stuck in whatever mode it's in. Motor replacement is straightforward if you can access it—typically 2-3 hours. Occasionally the encoder or internal mode fork also fails, requiring transfer case disassembly (add 6-8 hours).
Estimated cost: $400-700 motor only; $1,200-1,800 if internals needed
EVAP System Leaks and Check Engine Lights
Common · low severity
Typical onset: 60,000-140,000 mi
Symptoms: Check engine light with P0455 or P0442 codes (large/small EVAP leak), Fuel smell near filler area or under vehicle, Hissing when removing gas cap
Fix: Cracked EVAP hoses, faulty purge valve, or leaking gas cap are frequent culprits. Requires smoke test to locate leak. Gas cap is $25 DIY, purge valve 1 hour labor, but tracking down hose cracks in the maze behind fender liners can take 2-4 hours depending on location.
Estimated cost: $150-600 depending on component
Rear Differential Pinion Seal Leak
Occasional · medium severity
Typical onset: 80,000-150,000 mi
Symptoms: Gear oil drips or puddles under rear of vehicle, Whining or howling from rear axle if fluid level drops significantly, Visible oil coating on differential housing and driveshaft
Fix: Pinion seal hardens and leaks. If caught early, seal replacement is 2-3 hours (requires driveshaft removal, pinion nut torque spec critical). If run low on fluid, ring and pinion damage occurs requiring full differential rebuild (10-14 hours).
Estimated cost: $350-550 seal only; $1,800-2,800 if gears damaged
Blend Door Actuator Failure (HVAC)
Occasional · low severity
Typical onset: 90,000-160,000 mi
Symptoms: Clicking or tapping noise from behind dash when adjusting temperature, Heat or A/C only from certain vents regardless of mode selected, Temperature control stuck on hot or cold
Fix: Plastic blend door actuators break internally. Replacement requires partial dash disassembly to access. 3-5 hours labor depending on which actuator (some require more dash removal than others). Not a breakdown issue but incredibly annoying in extreme weather.
Estimated cost: $400-750
Owner tips
Install an external transmission cooler immediately on any 2004 WJ—it's $200 insurance against a $4,000 transmission replacement
The 4.0L I6 is bulletproof compared to the 4.7L V8; if buying used, pay the premium for the I6 if towing isn't required
Check for coolant in the transmission dipstick BEFORE test-driving any used WJ—pink fluid means walk away
Replace differential fluid every 30,000 miles, especially if towing; these diffs run hot and fluid breaks down fast
Buy only if you find a well-maintained 4.0L I6 example with external trans cooler already installed and documented head gasket work on any 4.7L; otherwise, budget $3,000-5,000 for deferred powertrain repairs within the first year.
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 2003 Jeep Liberty vehicles manufactured March 29, 2003, to July 3, 2003, and 2004 Jeep Grand Cherokee vehicles manufactured May 27, 2003, to May 20, 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 will notify owners, and dealers will replace the air bag electronic control module and the side impact sensors, as necessary, free of charge. The recall began on May 5, 2016. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is R60.
AIR BAGS:FRONTAL · 15V046000
2015-01-28 · RQ14001
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.
ELECTRICAL SYSTEM:STARTER ASSEMBLY · 04V112000
2004-03-04
ON CERTAIN SPORT UTILITY VEHICLES EQUIPPED WITH 4.0L ENGINES, THE CRANKSHAFT POSITION SENSOR WIRING INSULATION MAY CRACK AND EXPOSE THE WIRE.
Consequence: IN THE PRESENCE OF MOISTURE, THIS COULD RESULT IN SENSOR MALFUNCTION, WHICH COULD CAUSE THE ENGINE TO STALL, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE CRANKSHAFT POSITION SENSOR. OWNER NOTIFICATION BEGAN ON MARCH 29, 2004. OWNERS SHOULD CONTACT DAIMLERCHRYSLER AT 1-800-853-1403.
EQUIPMENT:OTHER:LABELS · 04V048000
2004-02-03
ON CERTAIN SPORT UTILITY VEHICLES, DUE TO A RECENT SOFTWARE PROGRAMMING ERROR, THE TIRE, WHEEL, AND INFLATION PRESSURE INFORMATION WAS INADVERTENTLY OMITTED FROM THE VEHICLE CERTIFICATION LABEL.
Consequence: THE VEHICLE OWNER WOULD NOT BE AWARE OF THE TIRE, WHEEL, AND INFLATION PRESSURE INFORMATION FOR THEIR VEHICLE.
Remedy: OWNERS WILL BE PROVIDED WITH A CORRECTED TIRE CERTIFICATION LABEL. OWNER NOTIFICATION BEGAN ON MARCH 1, 2004. OWNERS SHOULD CONTACT DAIMLERCHRYSLER AT 1-800-853-1403.
STEERING:GEAR BOX (OTHER THAN RACK AND PINION) · 03V079000
2003-03-10
ON CERTAIN SPORT UTILITY VEHICLES, THE POWER STEERING GEAR MAY CONTAIN AN IMPROPERLY FORMED SPACER CLIP, WHICH COULD DISLODGE WITHIN THE STEERING GEAR.
Consequence: A DISLODGED CLIP MAY CAUSE INCREASED STEERING EFFORT, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE STEERING GEAR ASSEMBLIES. OWNER NOTIFICATION BEGAN ON MARCH 12, 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT DAIMLERCHRYSLER AT 1-800-853-1403.
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