Brake pad and rotor replacement, caliper rebuilding/replacement, brake line repair/replacement, bleeding procedures.
Suspension And Steering Repair:
Component replacement (shocks, struts, ball joints, tie rods), alignment procedures, power steering pump replacement.
Electrical Diagnostics:
Testing and replacement of electrical components, wiring harness repair, troubleshooting of electrical faults using diagrams.
Body And Interior Repair:
Panel repair, rust mitigation, glass and seal replacement, interior trim panel removal and installation.
Troubleshooting Guides:
Step-by-step diagnostic flowcharts for common drivability and system issues.
Technical Depth
Depth:
Comprehensive (from basic maintenance to complete engine and transmission rebuilds, advanced electrical diagnostics, and body repair).
📊 Manual Specifications
File Format
File Type:
PDF
Searchable Text:
Yes
Print Quality
Image Resolution:
High resolution for clear diagrams and illustrations
Binding Type
Binding:
N/A (Digital Download)
Paper Type
Paper Quality:
N/A (Digital Download)
⚙️ Engine Specifications
Primary Engine
Engine 1 Type:
4.0L Power-Tech Inline-6
Engine 1 Displacement:
3952 cc (241 cubic inches)
Engine 1 Bore X Stroke:
98.5 mm x 86.6 mm (3.88 in x 3.41 in)
Engine 1 Compression Ratio:
9.7:1
Engine 1 Horsepower:
195 hp @ 4600 rpm
Engine 1 Torque:
235 lb-ft @ 3200 rpm
Engine 1 Fuel System:
Sequential Multi-Port Fuel Injection (MPI)
Optional Engine
Engine 2 Type:
4.7L V8 Magnum
Engine 2 Displacement:
4701 cc (287 cubic inches)
Engine 2 Bore X Stroke:
93.0 mm x 86.5 mm (3.66 in x 3.41 in)
Engine 2 Compression Ratio:
8.7:1
Engine 2 Horsepower:
235 hp @ 4700 rpm
Engine 2 Torque:
325 lb-ft @ 3200 rpm
Engine 2 Fuel System:
Sequential Multi-Port Fuel Injection (MPI)
Performance
Engine Management System:
Chrysler/Jeep Controller Area Network (CAN) bus architecture
🔧 Transmission
Standard
Transmission Type:
42RE 4-Speed Automatic (standard on 4.0L)
Optional
Transmission Type:
45RFE/545RFE 4-Speed Automatic (standard on 4.7L V8, optional on 4.0L with certain configurations)
Features
Overdrive Gears:
4th gear provides overdrive for improved fuel economy
Transmission Fluid Type:
ATF+4 (Mopar)
📐 Dimensions
Exterior
Wheelbase:
2888 mm (113.7 inches)
Length:
4727 mm (186.1 inches)
Width:
1839 mm (72.4 inches)
Height:
1747 mm (68.8 inches)
Weights
Curb Weight Min:
1950 kg (4300 lbs)
Curb Weight Max:
2150 kg (4750 lbs)
Towing Capacity:
Up to 6,500 lbs (2,948 kg) with appropriate equipment
Cargo
Cargo Volume Behind 2Nd Row:
2006 liters (70.8 cu ft)
Cargo Volume Behind 1St Row:
3973 liters (140.3 cu ft)
🛡️ Safety Features
Ratings
NHTSA Frontal Impact Driver:
4/5 stars
NHTSA Frontal Impact Passenger:
4/5 stars
IIHS Offset Frontal Impact:
Acceptable
Active Features
ABS:
Standard (4-wheel disc ABS)
Traction Control:
Optional (part of Selec-Trac or Quadra-Drive systems)
Stability Control:
Not available for 2004 model year
Passive Features
Airbags:
Driver and front passenger airbags; Optional side curtain airbags (early availability, not widespread)
Seatbelts:
3-point seatbelts for all occupants; pretensioners for front seats
💡 Technology Features
Infotainment
Audio System:
Available premium Infinity Gold audio system with CD player, optional subwoofer.
Navigation:
Optional factory navigation system.
Driver Assistance
Cruise Control:
Standard
Parking Assist:
Not available for 2004 model year
Connectivity
Onstar:
Not available for 2004 model year
🔧 Maintenance
Service Intervals
Engine Oil Change Interval:
Every 7,500 miles (12,000 km) or 6 months, whichever comes first (under normal driving conditions).
Engine Air Filter Replacement:
Every 30,000 miles (48,000 km) or as needed based on inspection.
Spark Plug Replacement 4.0L:
Every 100,000 miles (160,000 km) with Champion Copper Plus spark plugs or equivalent.
Spark Plug Replacement 4.7L V8:
Every 100,000 miles (160,000 km) with Champion Platinum Power spark plugs or equivalent.
Transmission Fluid Service:
Every 60,000 miles (96,000 km) or 4 years.
Fluid Specifications
Engine Oil Viscosity:
SAE 5W-30 (preferred), SAE 10W-30 (acceptable in warmer climates)
Engine Coolant:
Mopar OAT (Organic Additive Technology) 5-Year/100,000 Mile Coolant or equivalent.
Power Steering Fluid:
Mopar Power Steering Fluid or equivalent (ATF+4 is NOT recommended for power steering).
Brake Fluid:
DOT 3
Known Issues
Common Problems:
Heater core leaks, transmission valve body issues (especially in early 4.7L models), front suspension component wear (ball joints, tie rod ends), rear main seal leaks, transfer case chain stretch (NV247).
Diesel Option Availability:
No diesel engine option was officially offered in North America for the 2004 WJ Grand Cherokee.
📚 Vehicle History
Brand Heritage
Jeep Legacy:
Jeep has a storied history of off-road prowess and rugged utility dating back to WWII.
Model Evolution
Wj Generation Introduction:
The WJ Grand Cherokee was introduced for the 1999 model year, replacing the ZJ. It featured a significant redesign with a more upscale interior and exterior, improved on-road manners, and the introduction of the more advanced Quadra-Drive system.
2004 Model Year Updates:
Minor refinements, including potential updates to audio systems and options packages. The 4.7L V8 received a power boost in earlier WJ years, and the 2004 model benefited from these advancements.
Production
Production Period Wj:
1999-2004
Assembly Locations:
Jefferson North Assembly, Detroit, Michigan, USA; Austrian (Graz) assembly for European markets.
🏆 Awards & Recognition
Recognitions
Off Road Awards:
Consistently rated highly by automotive publications for its off-road capability and the effectiveness of its Quadra-Drive system.
Ratings
Consumer Reports Rating:
Variable; often cited for powertrain reliability issues in specific model years and engine configurations, though generally well-regarded for its off-road capability and comfort.