WJ Grand Cherokee
From JeepForum.com Community Jeep Wiki
(diff) ←Older revision | Current revision | Newer revision→ (diff)
Contents |
Jeeps Grand Cherokee WJ (1999-2004)
Chrysler introduced the new 1999 Jeep Grand Cherokee WJ to the world on June 16, 1998 at Cobo Center in Detroit. The new WJ was developed in 28 months for a cost of approximately $2.6 billion. The SUV is a full unibody design with coil springs and full live axles front and rear giving it a fully trail ratable capability. The rear tire was moved to a spot under the rear deck inside the truck, and all the body contours were redone with an eye to smoothing out all the corners.
Technical Information
1999-2004 North American Market Engines:
4.0L I-6
4.0 liter In-line 6 cylinder (242 C.I.) 195HP @ 4600 RPM 230lb.ft. torque @ 3000 RPM(SAE net) EPA est. MPG: 2wd=15 city/21 highway 4wd=15/20
The venerable 4.0 liter engine had been upgraded and strengthened to make it more robust in operation for this series of Grand Cherokee. There was a slight increase in horsepower of this proven design. The engine was no longer used in the Grand Cherokee after the WJ series, having originated near the end of the 1970's as a production engine which had gone through many improvements and changes during its long manufacturing run.
4.7L V-8
The 4.7-liter V-8 engine was introduced as an all new design that has not only has stood the test of time becoming the basis for newer engines, but became a very popular choice for this model.
4.7 liter V8 (287 C.I.) 235HP @ 4800 RPM 295lb.ft. torque @ 3200 RPM(SAE net) EPA est. MPG: 14 city/19 highway
4.7 liter V8 HO (high output) (287 C.I.) 265HP @ 5100 RPM 325lb.ft.torque @ 3600 RPM(SAE net) EPA est. MPG: 14 city/19 highway. This motor was introduced in 2002 and was standard on all 2002-2004 Overland models. Optional on 2002-2004 Limiteds. Also offered in 2004 as an option on Freedom, Columbia, and Rocky Mountain editions.
All three motors run on regular unleaded 87 octane without any problems, but 93 octane is recommended with the 4.7 HO. All three motors have a 6 quart oil capacity.
1999-2004 North American Market Transmissions:
2 wheel drive
42RE/44RE - 4 speed automatic used behind the 4.0 litre I-6
45RFE/545RFE - 5 speed automatic used behind the 4.7 litre V-8
4 wheel drive
1) Quadra-Trac I NV147 - On-demand; utilizes a gerotor coupling for improved response; high-range only (does not include neutral or low-range positions).
2) Quadra-Trac II NV247 - On-demand; utilizes a gerotor coupling for improved response;includes Low-range and Full-Time (2:72:1); single lever transfer case mode operation.
3) Selec-Trac NV-242 - Full-time; two speed with shift on the fly; includes low-range (2:72:1); allows for 2WD or 4WD mode; full or part-time 4WD; single lever transfer case mode operation.
4) Quadra-Drive NV247 - On-demand; utilizes a gerotor coupling in the Quadra-Trac II transfer case and in the Vari-Lok front and rear progressive axles to send torque to the front driveshaft and/or from side to side within each axle when wheel slippage occurs; includes Low-range and Full-Time (2:72:1) single-lever transfer case mode operation.
Stock Specs
Exterior
Length: 181.5 in. Width: 72.3 in.
Height: 69.4 in. Wheel Base: 105.9 in.
Ground Clearance: 9.1 in. Curb Weight: 3879 lbs.
Interior
Front Head Room: 39.7 in. Front Shoulder Room: 58.9 in.
Rear Head Room: 39.5 in. Rear Shoulder Room: 57.8 in.
Front Leg Room: 41.4 in. Rear Leg Room: 35.3 in.
Luggage Capacity: 39 cu. ft. Maximum Cargo Capacity: 72 cu. ft.
Maximum Seating: 5
Optional Engines
4.0 liter I6:
Horsepower - 195 @ 4600 RPM
Torque - 230 LB-FT @ 3000 RPM
4.7 liter V-8:
Horsepower - 235 @ 4800 RPM
Torque - 295 LB-FT @ 3200 RPM
4.7 liter V8 HO (High Output):
Horsepower - 265-270 @ 5100 RPM
Torque - 325-330 LB-FT @ 3600 RPM
Trim Levels
1999- Laredo, Limited
2000- Laredo, Limited
2001- Laredo, Limited
2002- Sport, Laredo, Special Edition, Limited, Overland
2003- Laredo, Limited, Overland
2004- Laredo, Special Edition, Columbia/Freedom/Rocky Mountain Edition, Limited, Overland
