Page 377 of 458

6-67 Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from
short circuits by a combination of fuses and circuit
breakers. This greatly reduces the chance of fires caused
by electrical problems.
Look at the silver
-colored band inside the fuse. If the
band is broken or melted, replace the fuse. Be sure you
replace a bad fuse with a new one of the identical size
and rating.
If you ever have a problem on the road and don't have a
spare fuse, you can borrow one that has the same
amperage. Just pick some feature of your vehicle that
you can get along without
-- like the radio or cigarette
lighter
-- and use its fuse, if it is the correct amperage.
Replace it as soon as you can.
Instrument Panel Fuse Block
The instrument panel fuse
block is located at the end
of the instrument panel on
the driver's side.
Remove the cover by turning the fastener
counterclockwise. Extra fuses and the fuse extractor
are provided in the cover. To reinstall the fuse panel
cover, push in and turn the fastener clockwise.
Page 378 of 458
6-68
Fuse/Circuit
BreakerUsage
A Not Used
B Not Used
1 Not Used
2 Cigarette Lighter, Data Link
ConnectorFuse/Circuit
BreakerUsage
3 Cruise Control, Body Controls
TBC, Cruise Module, Cruise
Switch
4 Gages, Body Controls TBC,
Instrument Panel Cluster,
B+ Power
5 Parking Lamps, Power Window
Switch, TBC, Ashtray Lamp
6 Steering Wheel, Illumination
7 Headlamp Switch, Body Controls
TBC, Headlamp Relay
8 Courtesy Lamps, Inadvertent
Power Relay
9 HVAC Control Head
10 Turn Signal
11 Instrument Panel Cluster,
Engine Controls
12 Interior Illumination
13 Auxiliary Power
Page 379 of 458
6-69
Fuse/Circuit
BreakerUsage
14 Power Locks
15 4WD Switch, Engine Control
(VCM, PCM, Transmission)
16 Supplemental Inflatable Restraint
17 Front Wiper
18 Steering Wheel, Radio, Ignition
19 Radio Battery
20 Amplifier
21 HVAC I, HVAC Control Head,
HVAC Devices
22 Anti
-Lock Brakes
23 Rear Wiper
24 Radio, Ignition
Engine Compartment Fuse Block
The fuse block is located under the hood on the driver's
side of the engine compartment. See ªEngine
Compartment Overviewº in the Index for more
information on location.
Remove the cover by turning the fastener
counterclockwise. To reinstall the fuse panel cover,
push in and turn the fastener clockwise.
Page 380 of 458
6-70
Name Usage
TRL TRN Not Used
TRR TRN Not Used
TRL B/U Not Used
VEH B/U Vehicle Back
-Up Lamps
RT TURN Right Turn Signal FrontName Usage
LT TURN Left Turn Signal Front
HDLP W/W Not Used
LT TRN Left Turn Signal Rear
RT TRN Right Turn Signal Rear
RR PRK Right Rear Parking Lamps
TRL PRK Not Used
LT HDLP Left Headlamp
RT HDLP Right Headlamp
FR PRK Front Parking Lamps
INT BAT I/P Fuse Block Feed
ENG I Engine Sensors/Solenoids, MAF,
CAM, PURGE, VENT
ECM B Engine Control Module, Fuel
Pump Module, Oil Pressure
ABS Anti
-Lock Brake System
ECM I Engine Control Module Injectors
BTSI Automatic Transmission Shift
Lock Control System
Page 381 of 458
6-71
Name Usage
B/U LP Back
-Up Lamps
A/C Air Conditioning
W/W PMP Not Used
HORN Horn
IGN B Column Feed, IGN 2, 3, 4
RAP Retained Accessory Power
LD LEV Not Used
OXYSEN Oxygen Sensor
IGN E Engine
MIR/LKS Mirrors, Door Locks
FOG LP Fog Lamps
IGN A Starting and Charging IGN 1
STUD #2 Accessory Feeds, Electric Brake
PARKLP Parking Lamps
LR PRK Left Rear Parking LampsName Usage
IGN C Starter Solenoid,
Fuel Pump, PRNDL
HTDSEAT Heated Seat
HVAC HVAC System
TRCHMSL Not Used
RRDFOG Not Used
TBC Truck Body Computer
CRANK Clutch Switch, NSBU Switch
HAZLP Hazard Lamps
VECHMSL Vehicle Center High
-Mounted
Stoplamp
HTDMIR Heated Outside Mirrors
ATC Transfer Case (Four
-Wheel Drive)
STOPLP Stoplamps
RR W/W Not Used
Page 382 of 458

6-72
Replacement Bulbs*
Lamps Number
Halogen Headlamps,
Composite Low
-Beam9006 HB4 or
9006 LL
Halogen Headlamps,
Composite High
-Beam9005 HB3
Tail and Stoplamps 3057
Rear Sidemarker Lamps 194
Front Sidemarker Lamps 194NA
Front Turn Signal Lamps 3457A
Center High
-Mounted
Stoplamp211-2
*For replacement bulbs not listed here, please consult
your dealer.
Capacities and Specifications
Please refer to ªRecommended Fluids and Lubricantsº
in the index for more information. See refrigerant
change label under the hood for charge capacity
information and requirements.
Wheel Nut Torque100 lb
-ft (140 N´m) . . . . . . . . . .
Tire PressureSee the Certification/Tire label. . . . . . .
See ªLoading Your Vehicleº in the Index.
Cooling System
2.2L Engine 9.9 quarts (9.4 L). . . . . . . . . . . . . . . . .
4.3L Engine w/Auto. Trans. 13.8 quarts (13.1 L). .
4.3L Engine
w/Manual. Trans. 14.1 quarts (13.3 L). . . . . . . .
Engine Oil with Filter*
2.2L Engine 4.5 quarts (4.3 L). . . . . . . . . . . . . . . . .
4.3L Engine 4.5 quarts (4.3 L). . . . . . . . . . . . . . . . .
Fuel Capacity
Reg./Ext. Cab 18.5 U.S. Gallons (70.0 L). . . . . . . .
Crew Cab 17.8 U.S. Gallons (67.4 L). . . . . . . . . . . .
Page 383 of 458

6-73
Automatic Transmission
Drain and Refill 5.0 quarts (4.7 L). . . . . . . . . . . . . .
Differential Fluid
Rear Axle 4.0 pints (1.9 L). . . . . . . . . . . . . . . . . . .
Front Axle 2.6 pints (1.2 L). . . . . . . . . . . . . . . . . . .
All capacities are approximate. After refill, the level
must be checked.
All capacities are approximate. When adding, be sure to
fill to the appropriate level or as recommended in this
manual. See ªRecommended Fluids and Lubricantsº in
the Index.
ªVORTECº 2200 L4 (VIN Code 5)
Engine Specifications
Type L4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Firing Order 1
-3-4-2 . . . . . . . . . . . . . . . . . . . . . . . . . .
Spark Plug Gap 0.040 inches (1.01 mm). . . . . . . . . .
ªVORTECº 4300 V6 (VIN Code W)
Engine Specifications
Type V6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Firing Order 1
-6-5-4-3-2 . . . . . . . . . . . . . . . . . . . . . .
Spark Plug Gap 0.060 inches (1.52 mm). . . . . . . . . .
Air Conditioning
Refrigerant Capacity
If you do your own service work, you'll need the proper
service manual. See ªDoing Your Own Service Workº in
the Index for additional information. It is recommended
that service work on your air conditioning system be
performed by a qualified technician.
Air Conditioning
Refrigerant R134a 1.8 lbs (.79 kg). . . . . . . . . . . .
Use Refrigerant Oil, R134a Systems
Page 384 of 458

6-74
Normal Maintenance
Replacement Parts
Replacement part numbers listed in this section are
based on the latest information available at the time of
printing and are subject to change. If a part listed in this
manual is not the same as the part used in your vehicle
when it was built, or if you have any questions, please
contact your GM dealer.
ªVORTECº 2200 L4 (VIN Code 5)
Engine Specifications
Oil Filter *PF47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner Filter *A1163C. . . . . . . . . . . . . . . . . . . . .
PCV Valve N/A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Transmission Filter Kit **24200796. . . .
Spark Plugs *41
-948 . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Filter *GF481. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Wiper
Blades (Trico) 20 inches (51 cm). . . . . . . . . . . . . . .
*ACDelco
Part No.
**GM Part No.
ªVORTECº 4300 V6 (VIN Code W)
Engine Specifications
Oil Filter *PF47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner Filter *A1163C. . . . . . . . . . . . . . . . . . . . .
PCV Valve *CV769C. . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Transmission Filter Kit **24200796. . . .
Spark Plugs *41
-948 . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Filter *GF481. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Wiper
Blades (Trico) Trico 20 inches (51 cm). . . . . . . . . .
*ACDelco
Part No.
**GM Part No.