Jeep Grand Cherokee Wk Positioning:
The 2007 Grand Cherokee, part of the WK generation, was positioned as a premium mid-size SUV, emphasizing luxury, off-road capability, and refinement within the Jeep lineup. It competed with vehicles like the Ford Explorer, Toyota 4Runner, and Chevrolet TrailBlazer.
Competitive Landscape 2007:
Jeep Grand Cherokee WK competed in a segment where buyers valued capability alongside comfort. Its strong V8 engine options and available advanced four-wheel-drive systems differentiated it from less rugged competitors.
Key Features Of The Vehicle
Wk Generation Highlights:
The WK generation Grand Cherokee offered a more refined interior and ride compared to its predecessors. Key features included advanced Hemi V8 engines, luxurious interior options, and sophisticated multi-mode four-wheel-drive systems like Quadra-Drive II.
Engine Systems:
3.7L V6, 4.7L V8, 5.7L HEMI V8: diagnosis, repair, overhaul, specifications, timing, cooling, lubrication, fuel delivery, emissions.
Transmission Systems:
5-Speed Automatic (W5A580, NAG1), 5-Speed Automatic (545RFE): repair, overhaul, fluid specifications, diagnosis, torque converter.
Drivetrain Systems:
Four-wheel drive (Quadra-Trac II, Quadra-Drive II), transfer case, differentials (front and rear), driveshafts, CV joints, axle shafts: removal, installation, repair, specifications.
Suspension Systems:
Front independent suspension (double wishbone), Rear multi-link suspension: ball joints, control arms, bushings, springs, shock absorbers, steering knuckle, alignment specifications.
Brake Systems:
Front and rear disc brakes, ABS, Electronic Stability Control (ESC), Brake assist: rotor and pad replacement, caliper overhaul, hydraulic system bleeding, diagnostic procedures.
Steering Systems:
Power steering, steering gear, steering column, tie rod ends: diagnosis, repair, fluid specifications.
Electrical Systems:
Battery, charging system, starter, ignition system, lighting, power distribution, wiring diagrams, fuses, relays, body control module (BCM).
HVAC Systems:
Air conditioning, heating, climate control: refrigerant handling, compressor, evaporator, condenser, blower motor, actuators, diagnostic procedures.
Body And Interior:
Body panels, doors, windows, locks, seats, trim, weather stripping: removal, installation, adjustment.
Maintenance Procedures:
Oil change, filter replacement, fluid checks and changes, tire rotation, spark plug replacement, belt inspection and replacement, brake pad and rotor replacement.
Diagnostic Procedures:
On-Board Diagnostics (OBD-II) system, trouble codes (DTCs), systematic troubleshooting guides for all major systems, electrical circuit testing.
Repair Procedures:
Complete engine rebuilds, transmission overhauls, suspension component replacement, brake system repairs, electrical component diagnostics and replacement, exhaust system repairs.
Technical Specifications Inclusion:
Torque specifications for all fasteners, alignment angles, fluid capacities, electrical specifications, engine performance data.
Electrical Procedures:
Complete wiring diagrams, component locations, diagnostic flowcharts for electrical faults, starting and charging system diagnosis, lighting system repair, body electrical diagnostics.
Depth Of Coverage:
Comprehensive, suitable for professional technicians and advanced DIY enthusiasts. Covers detailed diagnostics, component testing, and complete overhauls.
Diagnostic Tool References:
References diagnostic procedures using common automotive scan tools and specialized Jeep diagnostic equipment.
Engine Options:
3.7L SOHC V6, 4.7L SOHC V8, 5.7L HEMI OHV V8
3.7L V6 Performance:
Horsepower: 210 hp @ 5200 rpm; Torque: 235 lb-ft @ 4000 rpm
4.7L V8 Performance:
Horsepower: 230 hp @ 4500 rpm; Torque: 290 lb-ft @ 3800 rpm
5.7L Hemi V8 Performance:
Horsepower: 357 hp @ 5000 rpm; Torque: 389 lb-ft @ 4000 rpm
Fuel Delivery:
Sequential Multi-Port Fuel Injection (MPI)
Engine Identification Codes:
Examples: EKG (3.7L), N_A (4.7L), EZH (5.7L HEMI)
Engine Type 3.7L:
PowerTech V6
Engine Type 4.7L:
PowerTech V8
Engine Type 5.7L:
HEMI V8 with Multi-Displacement System (MDS)
Infotainment Systems Available:
Optional MyGIG infotainment system with GPS navigation, SiriusXM Satellite Radio, CD/DVD player, and hard drive for music storage.
Driver Assistance Features:
ParkSense parking assist (rear), rain-sensing wipers (optional).
Connectivity Options:
Uconnect hands-free communication system (optional), Bluetooth connectivity.
Comfort Features:
Dual-zone automatic climate control, heated front seats, power adjustable pedals, power liftgate (optional).
Oil Change Interval:
Every 5,000 to 7,500 miles (8,000 to 12,000 km) or 6 months, depending on driving conditions and oil type used.
Engine Air Filter Replacement:
Every 30,000 miles (48,000 km) or as needed based on inspection.
Cabin Air Filter Replacement:
Every 15,000 to 30,000 miles (24,000 to 48,000 km) or 12-24 months.
Engine Oil Type:
SAE 5W-20 (3.7L & 4.7L), SAE 5W-20 or 5W-30 (5.7L HEMI) - check owner's manual for specific certifications.
Coolant Type:
Mopar OAT (Orange) Antifreeze/Coolant, 5-Year/100,000-Mile Formula (MS-9805) or equivalent.
Common Issues 3.7L V6:
Intake manifold leaks, oil filter housing leaks, occasional oil consumption.
Common Issues 4.7L V8:
Head gasket failures (especially earlier models), spark plug blowouts (if not torqued correctly), oil leaks.
Common Issues 5.7L Hemi:
MDS (Multi-Displacement System) lifter issues, exhaust manifold leaks, valve spring issues.
Common Issues General:
Water pump leaks, power steering pump noise, HVAC blower motor failures, ABS sensor failures, minor electrical glitches.
Engine Oil Capacity 3.7L:
5.0 US quarts (4.7 liters)
Engine Oil Capacity 4.7L:
6.0 US quarts (5.7 liters)
Engine Oil Capacity 5.7L:
7.0 US quarts (6.6 liters)
Coolant Capacity Approx:
10.7 US quarts (10.1 liters) - varies slightly by engine