Engine Mechanical:
Engine assembly, cylinder head, valve train, crankshaft, pistons, connecting rods, lubrication system, cooling system, timing system
Engine Performance:
Fuel system, ignition system, emissions control system, engine diagnostics, turbocharger system (if applicable)
Transmission Manual:
Clutch, manual transmission assembly, gear shift mechanism, driveline
Transmission Automatic:
Automatic transmission assembly, torque converter, transmission control module (TCM), hydraulic system, valve body
Drivetrain:
Transfer case, front axle, rear axle, differentials, driveshafts, U-joints, CV joints
Suspension:
Front suspension (independent), rear suspension (solid axle), shock absorbers, springs, control arms, stabilizer bars
Steering:
Steering gear, power steering system, steering column, tie rods, steering linkage
Brakes:
Front and rear brake systems (disc/drum), ABS, EBD, brake lines, master cylinder, calipers, rotors, pads
Electrical System:
Battery, charging system (alternator, regulator), starting system (starter), lighting system (headlights, taillights, interior), horn, wipers, washers
Body Electrical:
Body control module (BCM), power windows, power locks, mirrors, seats, remote keyless entry, interior trim, exterior trim, mirrors
HVAC:
Heating, ventilation, air conditioning system, refrigerant, compressor, condenser, evaporator, blower motor, control panel
Chassis Controls:
Traction control system (TCS), electronic stability program (ESP/ESC)
Restraints:
Airbag system, seat belt system, SRS module
Routine Maintenance:
Oil changes, filter replacements, fluid checks and top-offs, tire rotations, spark plug replacement, brake pad inspection
Diagnostic Troubleshooting:
Step-by-step diagnostic charts, symptom-based troubleshooting, wiring diagrams, connector pinouts, diagnostic trouble codes (DTCs)
Component Repair Replacement:
Detailed instructions for removing, inspecting, repairing, and reinstalling all major and minor components
Rebuilds Overhauls:
Engine, transmission, and axle overhaul procedures with specifications
Electrical Diagnostics:
Wiring schematics, troubleshooting for electrical faults, sensor testing, module programming
Body And Frame:
Body panel removal/installation, collision repair guidelines, structural repair
Emissions Systems:
Diagnosis and repair of evaporative emissions control (EVAP), catalytic converter, oxygen sensors, EGR
HVAC Service:
Refrigerant handling, system charging, component replacement, leak detection
Wheel Alignment And Balancing:
Alignment specifications and procedures, wheel balancing instructions
Depth Level:
Expert/Professional Level
Diagnostic Tools:
References to diagnostic scan tools, specialized equipment, and measurement tools
Specifications And Tolerances:
Precise measurements, torque values, clearances, and operating parameters for all components
Wiring Diagrams:
Detailed, system-specific wiring schematics with component locations and connector views
Troubleshooting Charts:
Flowchart-based troubleshooting guides for common and complex issues
Engine Code Gas:
2.4L PowerTech (ED1)
Engine Displacement Gas:
2429 cc (148.2 cubic inches)
Engine Configuration Gas:
Inline 4-cylinder, DOHC, 16-valve
Horsepower Gas:
150 hp @ 5800 rpm
Torque Gas:
165 lb-ft @ 4000 rpm
Engine Code Gas Optional:
2.7L PowerTech V6 (2.7L HO V6)
Engine Displacement Gas Optional:
2700 cc (164.8 cubic inches)
Engine Configuration Gas Optional:
V6, SOHC, 24-valve
Horsepower Gas Optional:
190 hp @ 6000 rpm
Torque Gas Optional:
205 lb-ft @ 4500 rpm
Engine Code Gas Optional 2:
3.7L PowerTech V6
Engine Displacement Gas Optional 2:
3700 cc (226 cubic inches)
Engine Configuration Gas Optional 2:
V6, SOHC, 24-valve
Horsepower Gas Optional 2:
201 hp @ 5200 rpm
Torque Gas Optional 2:
230 lb-ft @ 3800 rpm
Fuel Delivery:
Multi-point Fuel Injection (MPI)
Fuel Type:
Unleaded gasoline
Recommended Octane:
87 Octane (minimum)
NHTSA Front Crash Test Driver:
Good (2003 model year tested)
NHTSA Front Crash Test Passenger:
Good (2003 model year tested)
NHTSA Side Impact Front Seat:
Good (2003 model year tested)
NHTSA Side Impact Rear Seat:
Good (2003 model year tested)
IIHS Front Offset Crash Test:
Good (varies by year, generally good for the generation)
Traction Control:
Standard on most models
Electronic Stability Control:
Optional on some models, standard on later models
Anti Lock Brakes:
Standard
Airbags:
Front airbags, optional side curtain airbags
Seat Belts:
3-point front and rear seat belts
Oil Change Interval:
Every 5,000 - 7,500 miles (8,000 - 12,000 km) or 6 months, whichever comes first (refer to manual for specific engine/oil type).
Air Filter Replacement:
Every 15,000 - 30,000 miles (24,000 - 48,000 km), inspect more frequently.
Spark Plug Replacement:
Every 30,000 - 100,000 miles (48,000 - 160,000 km) depending on spark plug type (platinum/iridium recommended).
Coolant Flush Interval:
Every 30,000 - 60,000 miles (48,000 - 96,000 km) or 2-5 years.
Transmission Fluid Change Auto:
Every 30,000 - 60,000 miles (48,000 - 96,000 km), especially under severe use.
Brake Fluid Flush:
Every 2-3 years or 30,000 miles (48,000 km).
Engine Oil Type:
SAE 5W-30 (preferred) or 5W-20 (check owner's manual and ambient temperature chart)
Engine Oil Capacity:
2.4L: 4.5 US quarts (4.3 L); 2.7L V6: 5.0 US quarts (4.7 L); 3.7L V6: 6.0 US quarts (5.7 L)
Coolant Type:
Chrysler HOAT (Hybrid Organic Acid Technology) or equivalent meeting MS-9769
Power Steering Fluid:
Chrysler Power Steering Fluid or equivalent meeting MS-5901
Common Problem 1:
Heater core leaks (especially with the 2.7L V6)
Common Problem 2:
Blend door actuator failures (HVAC system)
Common Problem 3:
Oil filter housing leaks (common on Jeep engines of this era)
Common Problem 4:
Sway bar link and bushing wear (typical for SUVs)
Common Problem 5:
Minor electrical gremlins, particularly related to door modules or sensors.
Common Problem 6:
Transmission cooler line leaks (potential for fluid loss)