1999 CHEVROLET C/K Owners Manual

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6-71
Instrument Panel Fuse Block
The fuse block access door
is on the driver's side edge
of the instrument panel. Pull
off the cover to access the
fuse block.
You can remove fuses with a fuse extractor. The fuse
extractor is mounted to the fuse block access door. To
remove fuses if you don't have a fuse extractor, hold the
end of the fuse between your thumb and index finger
and pull straight out.
You may have spare fuses located behind the fuse block
access door. These can be used to replace a bad fuse.
However, make sure it is of the correct amperage.
Fuse/Circuit
Breaker Usage
1 Stop/TCC Switch, Buzzer,
CHMSL, Hazard Lamps,
Stoplamps
2 Transfer Case

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Fuse/Circuit
Breaker Usage
3 Courtesy Lamps, Cargo Lamp,
Glove Box Lamp, Dome/Reading
Lamps, Vanity Mirrors,
Power Mirrors
4 Instrument Cluster, DRL Relay,
Lamp Switch, Keyless Entry,
Low Coolant Module, Illuminated
Entry Module,
DRAC (Diesel Engine)
5 Not Used
6 Cruise Control
7 Auxiliary Power Outlet
8 Crank
9 License Lamp, Parking Lamps,
Taillamps, Roof Marker Lamps,
Tailgate Lamps, Front
Sidemarkers, Fog Lamp Relay,
Door Switch Illumination,
Fender Lamps, Headlamp
Switch IlluminationFuse/Circuit
Breaker Usage
10 Not Used
11 Wiper Motor, Washer Pump
12 A/C, A/C Blower,
High Blower Relay
13 Power Amp, Cigarette Lighter,
Door Lock Relay,
Power Lumbar Seat
14 4WD Indicator, Cluster, Comfort
Controls, Instrument Switches,
Radio Illumination,
Chime Module
15 DRL Relay, Fog Lamp Relay
16 Front and Rear Turn Signals,
Back
-Up Lamps, BTSI Solenoid
17 Radio (Ignition)
18 4WAL/VCM, ABS,
Cruise Control
19 Radio (Battery)

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Fuse/Circuit
Breaker Usage
20 PRNDL, Automatic Transmission,
Speedometer, Check Gages
Warning Light
21 Security/Steering
22 Not Used
23 Not Used
24 Front Axle, 4WD Indicator Lamp,
TP2 Relay (Gasoline Engine)
A Power Door Lock, Six
-Way Power
Seat, Keyless Entry Module
B Power WindowsUnderhood Fuse/Relay Center
The underhood fuse/relay center is located in the rear of
the engine compartment near the brake fluid reservoir.
Move the retainer clips for the cover to access the
fuse block.
You can remove fuses with a fuse extractor. The fuse
extractor is mounted to the interior fuse block. To
remove fuses if you don't have a fuse extractor, hold the
end of the fuse between your thumb and index finger
and pull straight out.

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6-74
Name Usage
ECM
-B Fuel Pump, PCM/VCM
RR DEFOG Rear Window Defogger
IGN
-E Auxiliary Fan Relay Coil,
A/C Compressor Relay,
Hot Fuel Module, Dual Tanks
HORN Horn, Underhood Lamps
AUX FAN Auxiliary FanName Usage
ECM
-1 Injectors, PCM/VCM, Fuel
Solenoid (Diesel Engine, Fuel
Control Module (Diesel Engine)
HTD ST
-FR Not Used
A/C Air Conditioning
HTD MIR Not Used
ENG
-1 Ignition Switch, EGR, Canister
Purge, EVRV Idle Coast Solenoid,
MAF, Heated O
2,
Fuel Heater (Diesel Engine),
Water Sensor (Diesel Engine),
Boost Solenoid (Diesel Engine),
EPR (Diesel Engine)
HTD ST
-RR Not Used
LIGHTING Headlamp and Panel Dimmer
Switch, Fog and Courtesy Fuses
BATT Battery, Fuse Block Busbar
IGN
-A Ignition Switch
IGN
-B Ignition Switch
ABS Anti
-Lock Brake Module
BLOWER High Blower Relay
STOP/HAZ Stoplamps
HEATED SEATS Not Used

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Replacement Bulbs
Exterior Lamps Quantity Number
Sealed Beam Headlamps 2 H6054
Composite Low
-Beam
Headlamps2 9006
Composite High
-Beam
Headlamps2 9005
Front Marker Lamp 2 194
Front Parking and
Turn Lamp4 2357NA
Rear Parking Lamp 2 3057
Rear Stop and Turn
Lamp2 3057
Back
-up Lamp2 3156
Fender Marker Lamp 4 194
Roof Marker Lamp 5 194
License Plate Lamp 2 194
Center High
-Mounted
Stoplamp4 921
Underhood Lamp 1 93
Pickup Box
Identification Lamp3 153R*Interior Lamps Quantity Number
Dome Lamps 2
211
-2
Reading Lamps 2
211
-2
Door Courtesy Lamps 2 194
Four
-Wheel-Drive
Indicator**1 194
Four
-Wheel-Drive
Shift Lever**1 194
Instrument Panel
Compartment Lamp1 194
Ashtray Lamp 1 194
Sunshade Vanity Mirror 1 74
* Peterson Manufacturing
** Manual Transfer Case

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Capacities and Specifications
Please refer to ªRecommended Fluids and Lubricantsº in the Index for more information.
Engine Type VIN Code Spark Plug Gap
ªVORTECº 5000 V8 M 0.06 inches (1.52 mm)
ªVORTECº 5700 V8 R 0.06 inches (1.52 mm)
ªVORTECº 7400 V8 J 0.06 inches (1.52 mm)
Wheels and Tires
Model Description Torque
C/K 1500 5 bolts (14 mm)
140 lb
-ft (190 N´m)
C/K 1500 and C/K 2500 6 bolts (14 mm)
140 lb
-ft (190 N´m)
C/K 2500 (w/C6P) 8 bolts (14 mm)
140 lb
-ft (190 N´m)
C/K 3500 (Single Rear Wheels) 8 bolts (14 mm)
140 lb
-ft (190 N´m)
C/K 3500 (Dual Rear Wheels) 8 bolts (14 mm)
140 lb
-ft (190 N´m)
C 3500 HD Front 5 bolts (5/8 in.)
175 lb
-ft (240 N´m)
C 3500 HD Rear 10 bolts (5/8 in.)
175 lb
-ft (240 N´m)
Tire Pressure See the Certification/Tire label on the rear edge of the driver's door
or the incomplete vehicle document in the cab.

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6-77 Cooling System Capacity (Approximate)
After refill, the level must be rechecked. See ªCooling
Systemº in the Index.
Engine VIN Quantity
ªVORTECº 5000 M 17.5 quarts (16.6 L)
ªVORTECº 5700 R 17.5 quarts (16.6 L)
ªVORTECº 7400 J 25.0 quarts (23.5 L)
ªVORTECº
7400 w/3500 HDJ 28.5 quarts (27.0 L)
Crankcase Capacity (Approximate)
After refill, the level must be rechecked. Add enough
engine oil so that the fluid is within the proper operating
range. See ªEngine Oilº in the Index.
Engine VIN
Quantity with Filter

ªVORTECº 5000 M 5.0 quarts (4.8 L)
ªVORTECº 5700 R 5.0 quarts (4.8 L)
ªVORTECº 7400 J 6.6 quarts (6.3 L)

Oil filter should be changed at every oil change.
Fuel Tank Capacity (Approximate)
Type Quantity
Short Bed 26 gallons (98 L)
Long Bed 34 gallons (128 L)
Standard Crew Cab 34 gallons (128 L)
Chassis
-Cab Front Tank 21 gallons (79 L)
Chassis
-Cab Rear Tank 18 gallons (68 L)
3500 HD Models Front Tank 21 gallons (79 L)
3500 HD Models Rear Tank 18 gallons (68 L)

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Air Conditioning Refrigerants
Not all air conditioning refrigerants are the same. If the air conditioning system in your vehicle needs refrigerant, be
sure the proper refrigerant is used. If you're not sure, ask your dealer.
See the refrigerant charge label under the hood for information regarding refrigerant capacity.
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 truck dealer.
These specifications are for information only. If you have any questions, see the service manual for the chassis or
refer to the body manufacturer's publications.
VIN Code M R J
Oil Filter* PF1218
PF1218
PF1218
Air Cleaner Filter* A1300C

A1300C

A1300C


PCV Valve* CV769C CV769C CV774C
Spark Plugs* 41
-932 41-932 41-932
Fuel Filter* GF626 GF626 GF626
Wiper Blades** 22154886 22154886 22154886
Wiper Blade Type Trico Trico Trico
Wiper Blade Length 18 inches (45.0 cm) 18 inches (45.0 cm) 18 inches (45.0 cm)
*AC part number
**GM part number
Use a PF52 oil filter if your vehicle has
four
-wheel drive.


A1301C high
-capacity air cleaner filter.