1997 Jeep Wrangler specifications
Assembly Plant: Toledo, Ohio; introduced in April, 1996 as a 1997 model
Two engines were available: the 2.5 liter four-cylinder developed by AMC and generating 120 hp; and the 4.0 liter inline six-cylinder, also developed by AMC, and generating 181 (or more) horsepower. At launch, the four-cylinder was only available in the base SE model; the 4.0 was in Sport and Sahara. For each model, a manual transmission was standard, and an automatic was optional. The engines had this in common: gasoline powered, liquid-cooled, in-line engines, with cast iron block and head and sequential multiple-port electronic fuel injection. Two overhead valves per cylinder, hydraulic lifters, flat followers. The two engines were closely related.
4.0 liter In-Line 6-cylinder engine specifications
AMC-Jeep 4.0 liter engine details!
Displacement: 242 cu in. (3958 cc);
Bore x Stroke: 3.88 x 3.41 (98.4 x 86.7)
Compression Ratio: 8.8:1
Power (SAE net): 181 bhp (135 kW) @ 4600 rpm
Torque (SAE net): 222 lb-ft (301 N-m) @ 2800 rpm
BHP/Liter: 45.7
Max. Engine Speed: 5250 rpm
Fuel Requirement: Unleaded regular, 87 octane (R+M)/2
Oil Capacity: 6.0 qt (5.7 L)
Coolant Capacity: 10.5 qt (9.9 L)
Emission Controls: 3-way catalyst, heated oxygen sensors (2), engine modifications
Max. Gross Trailer Weight: 2000 lbs, 300 lbs tongue load
EPA Fuel Economy (MPG City/Hwy): 17/21 - man. trans.; 15/18 - auto. trans.
2.5 liter in-line four-cylinder engine specifications
Traditional AMC/Jeep engine, later used in the Dakota as well
Displacement: 150 cu in. (2464 cc)
Bore x Stroke: 3.88 x 3.19 (98.4 x 81)
Compression Ratio: 9.2:1
Power (SAE net):120 bhp (90 kW) @ 5400 rpm
Torque (SAE net): 140 lb-ft (190 N-m) @ 3500 rpm
BHP/Liter: 48.7
Max. Engine Speed: 5550 rpm
Fuel Requirement: Unleaded regular, 87 octane (R+M)/2
Oil Capacity: 4.0 qt (3.8 L)
Coolant Capacity: 9.0 qt (8.5 L)
Emission Controls: 3-way catalyst, heated oxygen sensors (2), engine modifications
Max. Gross Trailer Weight: 2000 lbs (900 kg); 1000 lbs (450 kg) w/auto. trans.
EPA Fuel Economy (MPG City/Hwy): 19/21 - man. trans.; 17/19 - auto. trans.
Transmissions and Command-Trac® transfer case
Assembly Plant: Toledo, Ohio; introduced in April, 1996 as a 1997 model
4.0 liter In-Line 6-cylinder engine specifications
AMC-Jeep 4.0 liter engine details!
Displacement: 242 cu in. (3958 cc);
Bore x Stroke: 3.88 x 3.41 (98.4 x 86.7)
Compression Ratio: 8.8:1
Power (SAE net): 181 bhp (135 kW) @ 4600 rpm
Torque (SAE net): 222 lb-ft (301 N-m) @ 2800 rpm
BHP/Liter: 45.7
Max. Engine Speed: 5250 rpm
Fuel Requirement: Unleaded regular, 87 octane (R+M)/2
Oil Capacity: 6.0 qt (5.7 L)
Coolant Capacity: 10.5 qt (9.9 L)
Emission Controls: 3-way catalyst, heated oxygen sensors (2), engine modifications
Max. Gross Trailer Weight: 2000 lbs, 300 lbs tongue load
EPA Fuel Economy (MPG City/Hwy): 17/21 - man. trans.; 15/18 - auto. trans.
2.5 liter in-line four-cylinder engine specifications
Traditional AMC/Jeep engine, later used in the Dakota as well
Displacement: 150 cu in. (2464 cc)
Bore x Stroke: 3.88 x 3.19 (98.4 x 81)
Compression Ratio: 9.2:1
Power (SAE net):120 bhp (90 kW) @ 5400 rpm
Torque (SAE net): 140 lb-ft (190 N-m) @ 3500 rpm
BHP/Liter: 48.7
Max. Engine Speed: 5550 rpm
Fuel Requirement: Unleaded regular, 87 octane (R+M)/2
Oil Capacity: 4.0 qt (3.8 L)
Coolant Capacity: 9.0 qt (8.5 L)
Emission Controls: 3-way catalyst, heated oxygen sensors (2), engine modifications
Max. Gross Trailer Weight: 2000 lbs (900 kg); 1000 lbs (450 kg) w/auto. trans.
EPA Fuel Economy (MPG City/Hwy): 19/21 - man. trans.; 17/19 - auto. trans.
Transmissions and Command-Trac® transfer case
Five-speed manual | Three-speed automatic | |
Overdrive, synchronized in all forward gears | Electro-hydraulic control, electronically controlled converter clutch | |
First | 3.93 (a); 3.83 (b) | 2.74 |
Second | 2.33 (a); 2.33 (b) | 1.54 |
Third | 1.45 (a); 1.44 (b) | 1.00 |
Fourth | 1.00 | |
Fifth | 0.85 (a); 0.79 (b) | |
Axle | 4.11 (a); 3.07 std., 3.55 opt. (b) | |
Overall top gear ratio | 3.49 (a); 2.24 w/3.07 AR, 2.55 w/3.55 AR (b) | 3.73 (a); 3.07 std., 3.55 opt. (b) |
Notes | (a). With 2.5 L engine; (b) With 4.0 L engine |