|
|
- New 4L85-E heavy-duty electronic four-speed transmission for the Vortec 8100 V8 engine
- Upgraded 4L80-E electronic four-speed automatic transmission
- Flex-fuel capability for the Vortec 5300 V8 engine
- Upgraded Ultra Low Vehicle Emissions (ULEV) capability for the Vortec 5300 V8 engine
- More efficient Denso oxygen sensor in LEV version of the Vortec 4800 V8 engine
- More efficient starter for Vortec 4800, Vortec 5300, Vortec 6000 and Vortec 8100 V8 engines
- More durable steering gear housing
- New anchorage system for rear child seats
Engines
Transmissions
Vortec 4800
Vortec 5300
Vortec 6000
Vortec 8100
4-Spd Auto
4-Spd Auto
4-Spd Auto*
V8 (LR4)
V8 (LM7)
V8 (LQ4)
V8 (L18)
(4L60-E)
(4L80-E)
(4L85-E)
Yukon 2WD / 4WD
s
o
–
–
s
–
–
Yukon XL 1500 2WD / 4WD
–
s
–
–
s
–
–
Yukon XL 2500 2WD / 4WD
–
–
s
o
–
s
o
* 4L85-E transmission is standard with the optional Vortec 8100 V8 engine.
Key:
Standard
s
Optional
o
Not available
–
2002 GMC YUKON, YUKON XL FEATURE POWERTRAIN ENHANCEMENTS
GMC’s 2002 Yukon and Yukon XL provide surprising agility in full-size SUVs that stand out for their extraordinary roominess, cargo-hauling capability and safety. Yukon XL 3/4-ton models, powered by the segment’s highest output engines, provide the ultimate muscle for heavy work or recreational duties. Their standard Vortec 6000 and optional Vortec 8100 V8s now mate to more durable transmissions, including a new 4L85-E heavy-duty version of the
4L80-E electronic four-speed automatic, which also provides additional torque capacity for off-line acceleration and pulling power.
Powertrain upgrades
Yukon XL 3/4-ton models provide unparalleled power with their optional Vortec 8100 V8 (L18). Its 340 hp at 4200 rpm and 455 lb-ft (617 Nm) of torque at 3200 rpm out-muscles even the top competitor’s V10. The Vortec 8100 now mates to a new, heavier-duty 4L85-E version of the previously standard 4L80-E four-speed automatic transmission. The 4L85-E provides higher durability and handles more torque for even better off-line acceleration and launch capability. It also handles more torque in reverse gear. The 4L85-E can handle 460 lb-ft (624 Nm) of maximum engine torque, 20 lb-ft more than the 4L80-E. Design enhancements include:
- A more robust overdrive roller clutch, featuring larger diameter rollers and a "shuttle car" design; it allows high-speed 4-2 downshifts without any shift sequencing delays and is designed with error-proof assembly features
- A more durable turbine shaft; the shaft is induction-hardened using an electrical heat-treating process and then shot-peened to relieve internal stresses in the metal
- Brazed blades inside the torque converter; they allow the torque converter to accept and transfer higher torque levels and increase durability
- More pinion gears (five total), allowing the gearset to handle higher loads
In other respects, the 4L85-E has the same gear ratios and design features as the 4L80-E. That means operators get the benefit of GM’s Tow/Haul mode, for example, which reduces shift busyness and wear when pulling a heavy trailer. It also means they get the proven dependability and smoothness inherent in the 4L80-E’s basic design.
The 4L80-E, which continues to be standard with the Vortec 6000 V8 (LQ4) in Yukon XL 3/4-ton models, also provides increased durability by adopting the more robust overdrive roller clutch and stronger turbine shaft used in the 4L85-E. The 4L80-E handles 440 lb-ft (597 Nm) of maximum engine torque capacity. The transmission is so strong, smooth and dependable that it’s even used in such applications as medium-duty trucks, motorhomes and some of the world’s most expensive luxury cars. As the standard engine in Yukon XL 3/4-ton models, the Vortec 6000 delivers 320 hp at 5000 rpm and 360 lb-ft (488 Nm) of torque at 4000 rpm – more than any of the segment’s competing V8s.
The Vortec 5300 V8 (LM7), standard on Yukon XL half-ton models and optional on the regular Yukon, now provides ultra low emissions vehicle (ULEV) capability for California. For states without special low emissions requirements, the Vortec 5300 also provides flexible fuel capability that allows the trucks to run on varying blends of ethanol and gasoline – from 100 percent gasoline up to a maximum 85 percent ethanol (E85). Flex-fuel capability is available at no charge.
Emissions efficiency has been improved with the use of a new Denso oxygen sensor in the LEV version of the Vortec 4800, standard in Yukon models. All full-size SUV engines, including the Vortec 4800, Vortec 5300, Vortec 6000 and Vortec 8100, feature a more efficient starter that draws less current and a more durable steering gear housing.
Improved safety
An anchorage system called LATCH (Lower Anchors and Top tethers for Children) provides more accessible attachment for rear child seats. Its seat anchors, combined with the top tether anchors, allow installation of LATCH-compatible child seats without using the seatbelt.
Yukon and Yukon XL provide a high level of safety and security, which begins with their exceptionally strong, stiff body structure. It comes from their uniquely designed three-piece modular frame, which provide the foundation for outstanding body strength and structural integrity. The full-length box has hydroformed rails and a stamped steel midsection for maximum strength. On half-ton models, the front frame rails telescope during a collision for extra energy-absorbing protection.
All Yukons feature front air bags for the driver, center and outboard seat passengers, along with driver and front-passenger side-impact air bags. They also have seat-mounted safety belts in first and third row outboard positions, which are easy to use and comfortable to wear. Variable-effort power steering is standard on four-wheel-drive half-ton models. It provides more responsive feel and stability at high speeds, for example, and reduced effort for parking maneuvers.
In addition, standard four-wheel disc brakes with dynamic rear proportioning and four-wheel ABS provide quick, highly controlled stops on varying road surfaces. Two-wheel-drive half-ton Yukons offer an Electronic Traction Assist system for more controlled acceleration and stability on slippery surfaces. It manages the powertrain by retarding spark, reducing airflow and modifying transmission shifts and works in conjunction with a limited slip/locking rear axle to optimize traction and stability. The system controls traction at all speeds, reacting to emergency situations faster than the typical driver. For example, if cruise control is active and the vehicle hits a patch of ice, the system will immediately deactivate the cruise control and seek to regain stability by reducing torque to the rear wheels.
Four-wheel-drive Yukons provide AutoTrac as a standard feature. This active transfer case allows a truck to get all of its traction from the rear wheels until it senses slippage. At that point, AutoTrac automatically switches power between the rear and front wheels until the vehicle regains traction. Thereafter, it allows the vehicle to resume rear-wheel drive, and returns to the standby mode until another wheel speed differential occurs.
For maximum visibility, Yukons feature large windshields, long wipers both in front and rear (on liftgate models) and large 50-square-inch outside, electrically controlled heated outside rearview mirrors. They also provide many other features such as flash-to-pass, signaling a driver’s intention to pass another vehicle, side impact door beams and energy-absorbing foam blocks on the interior that help protect occupants against head injuries.
Superior occupant security is also provided by standard features like automatic programmable door locks and the PASSLock II theft-deterrent system and the available OnStar system, provided with SLT trim.
Comfortable, roomy interiors
Yukon and Yukon XL also excel in seating comfort by providing highly flexible passenger and cargo-carrying configurations. Each can accommodate up to nine vehicle occupants. Yukon offers an optional 50/50 split-bench folding third row seat. Yukon XL offers the choice of four-place bucket seating. Seats can easily be removed or stored on board. With its rear seats removed, Yukon XL provides room enough to carry 4 x 8-foot sheets of plywood, with the door closed.
# # #
Contact:
Pontiac-GMC Communications
Phone: 313-667-4000
Fax: 313-667-4001
Online: http://media.gm.com/division/gmc
SPECIFICATIONS
Model:
GMC Yukon, Yukon XL 1/2-ton, and Yukon XL 3/4-ton
Body style/driveline:
four-door sport-utility, body-on-frame construction, front-engine, two- or four-wheel drive
EPA vehicle class:
full-size sport-utility
Manufacturing location:
Yukon: Janesville, Wisconsin and Arlington, Texas
Yukon XL: Janesville, Wisconsin and Silao, Mexico
Key competitors:
Ford Expedition, Ford Excursion, Toyota Sequoia
Engine
Vortec 4800
Vortec 5300
Vortec 6000
Vortec 8100
V8 (LR4)
V8 (LM7/L59)
V8 (LQ4)
V8 (L18)
Type:
4.8-liter, OHV V8 w/cast iron block
5.3-liter, OHV V8 w/cast iron block
6.0-liter, OHV V8 w/cast iron block
8.1-liter, OHV V8 w/cast iron block
Displacement (cu in / cc):
294 / 4807
327 / 5328
364 / 5967
496 / 8128
Bore & stroke (in / mm):
3.78 x 3.27 /
96.0 x 83.0
3.78 x 3.62 /
96.0 x 92.0
4.00 x 3.62 /
101.6 x 92.0
4.25 x 4.37 /
107.95 x 111.0
Cylinder head material:
cast aluminum
cast aluminum
cast aluminum
cast iron
Valvetrain:
overhead valve
overhead valve
overhead valve
overhead valve
2 valves / cylinder
2 valves / cylinder
2 valves / cylinder
2 valves / cylinder
Ignition system:
composite distributor, platinum-tipped spark plugs, low-resistance spark plug wires
composite distributor, platinum-tipped spark plugs, low-resistance spark plug wires
composite distributor, platinum-tipped spark plugs, low-resistance spark plug wires
coil near plug, platinum-tipped spark plugs
Fuel delivery:
sequential fuel injection
sequential fuel injection
sequential fuel injection
sequential fuel injection
Compression ratio:
9.5:1
9.5:1
9.4:1
9.1:1
Horsepower (hp / kw @ rpm):
275 / 205.2
285 / 212.6
320 / 238.7
340 / 253.6
@ 5200
@ 5200
@ 5000
@ 4200
Torque (lb-ft / Nm @ rpm):
290 / 393
325 / 441
360 / 488
455 / 617
@ 4000
@ 4000
@ 4000
@ 3200
Recommended unleaded fuel:
87 octane
87 octane
87 octane
87 octane
Maximum engine speed (rpm):
6000
6000
5600
5000
Emissions controls:
three-way catalytic converter, exhaust gas recirculation, positive crankcase ventilation, evaporative collection system
three-way catalytic converter, exhaust gas recirculation, positive crankcase ventilation, evaporative collection system
three-way catalytic converter, exhaust gas recirculation, positive crankcase ventilation, evaporative collection system
exhaust gas recirculation, Air Injection Reaction (available)
Estimated fuel economy
(mpg city / hwy / combined):
C1500 Yukon (2WD):
15 / 20 / 17
14 / 18 / 16
N/A
N/A
C1500 Yukon XL (2WD):
N/A
14 / 18 / 16
N/A
N/A
K1500 Yukon (4WD):
14 / 18 / 16
14 / 17 / 15
N/A
N/A
K1500 Yukon XL (4WD):
N/A
14 / 16 / 15
N/A
N/A
Transmission
4L60-E
4L80-E
4L85-E
Type:
four-speed electronic automatic
four-speed electronic automatic
four-speed electronic automatic
Gear ratios (:1):
First:
3.06
2.48
2.48
Second:
1.63
1.48
1.48
Third:
1.00
1.00
1.00
Fourth:
0.70
0.75
0.75
Reverse:
2.29
2.08
2.08
Final drive ratio:
Yukon (optional): 3.42:1 – 4.10:1
Yukon XL (optional): 3.73:1 – 4.10:1
Chassis/Suspension
Yukon
Yukon XL
Front:
independent with torsion bars
independent with torsion bars
Rear:
5-link coil spring w/automatic load leveling
1/2-ton: 5-link coil spring
3/4-ton: two stage, semi-elliptic, multileaf springs and semifloating rear axle
Traction control system:
full-function standard; Precision Control System
(2WD only) manages powertrain by retarding spark, reducing airflow and modifying transmission upshifts and works in conjunction with limited-slip, locking rear axle
Steering type:
2WD: power electronic,
1/2-ton, 2WD: power electronic
4WD: power, variable-assist, speed-sensitive
1/2-ton, 4WD: power, variable-assist, speed-sensitive
3/4-ton: power electronic
Steering ratio:
12.7:1
1/2-ton: 12.7:1
3/4-ton: 15 / 13:1 variable ratio
Steering wheel turns, lock-to-lock:
3.0
1/2-ton: 3.0; 3/4-ton: 3.25
Turning circle, curb-to-curb (ft / m):
38.3 / 11.7
1/2-ton: 42.3 / 12.9
3/4-ton, 2WD: 44.5 / 13.6
3/4-ton, 4WD: 44.3 / 13.5
Brakes
Type:
four-wheel disc, four-wheel ABS, dual piston calipers with Dynamic Rear Proportioning
four-wheel disc, four-wheel ABS, dual piston calipers with Dynamic Rear Proportioning
Rotor diameter x thickness (in / mm):
Front:
12.01 x 1.14 / 305 x 29
1/2-ton: 12.01 x 1.14 / 305 x 29
3/4-ton: 12.80 x 1.50 / 325 x 38
Rear:
13.0 x 1.18 / 320 x 20
1/2-ton: 13.0 x 1.18 / 320 x 20
3/4-ton: 13.0 x 1.14 / 330 x 29
Swept area (sq in / sq cm):
Front:
213.6 / 1378
1/2-ton: 213.6 / 1378
3/4-ton: 245.5 / 1584
Rear:
223.5 / 1440
1/2-ton: 223.5 / 1440
3/4-ton: 223.5 / 1440
Wheels/Tires
Wheel size & type:
1/2-ton:
16-inch x 7-inch cast aluminum
3/4-ton:
16-inch x 7-inch forged aluminum
Tire size & type:
1/2-ton:
P265/70R16 all-season, steel-belted radials
3/4-ton:
LT245/75R16 all season, steel-belted radials
Dimensions
Exterior
Yukon
Yukon XL
Wheelbase (in / mm):
116.0 / 2946
130.0 / 3302
Overall length (in / mm):
198.8 / 5050
219.3 / 5570
Overall width (in / mm):
78.8 / 2002
1/2-ton: 78.9 / 2004
3/4-ton: 79.8 / 2027
Overall height (in / mm):
2WD: 76.7 / 1948.2
(with luggage rack)
4WD: 76.5 / 1943.1
1/2-ton, 2WD: 75.8 / 1925
1/2-ton, 4WD: 75.7 / 1923
3/4-ton, 2WD: 76.8 / 1951
3/4-ton, 4WD: 77.1 / 1958
Track (in / mm):
Front:
65.0 / 1651
65.0 / 1651
Rear:
66.0 / 1676
66.0 / 1676
Min. ground clearance (in / mm):
8.4 / 213.4
1/2-ton: 8.4 / 213; 3/4-ton: 7.1 / 180
Ground to top of rear load floor (in / mm):
2WD: 31.5 / 800
1/2-ton, 2WD: 31.3 / 795
4WD: 31.3 / 795
1/2-ton, 4WD: 31.3 / 790
3/4-ton, 2WD: 32.6 / 828
3/4-ton, 4WD: 33.3 / 846
Step-in height (in / mm):
2WD: 19.9 / 505
1/2 ton, 2WD: 19.7 / 501
4WD: 22.1 / 562
1/2-ton, 4WD: 21.8 / 554
3/4 ton, 2WD: 22.1 / 562
3/4-ton, 4WD: 22.9 / 581
Approach angle:
22°
23-25°
Departure angle:
15°
20-22°
Base curb weight (lbs / kg):
2WD: 4828 / 2190
1/2-ton, 2WD: 4914 / 2229
4WD: 5050 / 2290
1/2-ton, 4WD: 5123 / 2323
3/4-ton, 2WD: 5447 / 2470
3/4-ton, 4WD: 5760 / 2612
Weight distribution (front / rear):
53 / 47
53 / 47
Interior
Seating capacity, 7 to 9 total:
First row:
3 or 2
3 or 2
Second row:
3
3 or 2
Third row:
3
3
Head room (in / mm):
First row:
40.7 / 1034
40.7 / 1034
Second row:
39.4 / 1001
39.4 / 1001
Third row:
37.4 / 950
37.4 / 950
Leg room (in / mm):
First row:
41.3 / 1049
41.3 / 1049
Second row:
38.6 / 980
38.6 / 980
Third row
27.3 / 693
27.3 / 693
Shoulder room (in / mm):
First row:
65.2 / 1656
65.2 / 1656
Second row:
65.1 / 1654
65.1 / 1654
Third row:
64.4 / 1636
64.4 / 1636
Hip room (in / mm):
First row:
64.4 / 1560
61.4 / 1560
Second row:
61.3 / 1557
61.3 / 1557
Third row:
49.2 / 1250
49.2 / 1250
Cargo volume (cu ft / liters):
First row:
104.6 / 2962
131.6 / 3726
Second row:
63.6 / 1801
90.0 / 2549
Third row:
16.3 / 461
45.7 / 1294 (seat back in up position)
Capacities
GVWR, standard (lbs / kg):
2WD: 6500 / 2948
1/2 ton, 2WD: 7000 / 3175
4WD: 6800 / 3084
1/2 ton, 4WD: 7200 / 3265
3/4 ton, 2WD: 8600 / 3901
3/4 ton, 4WD: 8600 / 3901
Payload, base (lbs / kg):
2WD: 1573 / 714
1/2 ton, 2WD: 2193 / 995
4WD: 1616 / 733
1/2 ton, 4WD: 1963 / 890
3/4 ton, 2WD: 3054 / 1385
3/4 ton, 4WD: 2749 / 1247
Trailer towing maximum (lbs / kg):
2WD: 7700 / 3493
1/2-ton, 2WD: 8400 / 3810
4WD: 8100 / 3674
1/2-ton, 4WD: 8100 / 3674
3/4-ton: 12,000 / 5443
Maximum tongue weight (lbs / kg):
Trailer tongue weight should be 10-15 percent of the total loaded trailer weight. Weight-carrying hitch limit on 4000-lb trailer is 400-pound tongue weight. Weight-distributing hitch and sway control required for over 4000 pound trailer weight.
Fuel tank (gal / liters):
26.0 / 98.4
1/2-ton: 28.9 / 109.5; 3/4-ton: 34.3 / 129.7
Engine oil with filter (qts / liters):
6.0 / 5.7
6.0 / 5.7
Cooling system (qts / liters):
Vortec 4800: 14.4 / 13.7
Vortec 6000 (base model): 15.8 / 15.0
Vortec 5300: 15.8 / 15.0
Vortec 8100 (base model): 27.0 / 25.6
(with 3rd seat 16. 8 / 15.9)
Note: Information shown is current at time of publication. Please visit our GM Media web site at http://media.gm.com for future updates.
