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NOTICE:
0 Using the wrong fluid can badly damage
brake system parts. For example, just
a few
drops of mineral-based oil, such
as engine
oil, in your brake system can damage brake
system parts
so badly that they’ll have to be
replaced. Don’t let someone put in the
wrong kind of fluid.
If you spill brake fluid on your vehicle’s
painted surfaces, the paint finish can be
damaged. Be careful not to spill brake fluid
on your vehicle. If you do, wash it off
immediately. See “Appearance Care” in
the Index.
Brake Wear
worn and new pads are needed. The sound may come and
go or be heard all the time your vehicle is moving (except
when you are pushing on the brake pedal firmly).
I
The brake wear warning sound means that soon
your brakes won’t work well. That could lead to
an accident. When you hear the brake wear
warning sound, have your vehicle serviced.
I NOTICE:
r
Continuing to drive with worn-out brake pads
could result in costly brake repair.
Your vehicle has front disc brakes and rear drum brakes.
Disc brake pads have built-in wear indicators that make a
high-pitched warning sound when the brake pads are Some
driving conditions or climates may cause a brake
squeal when the brakes are first applied or lightly
applied. This does not mean something is wrong with
your brakes.
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Page 316 of 433
Bulb Replacement
Before you replace any bulbs, be sure that all the lamps
are off and the engine isn’t running. For the proper bulb
-
lbs” in the
type,
see “Replacement Bu
Halogen Bulbs
A CAUTION:
Index.
-
Halogen bulbs have pressurized gas inside and
can burst if
you drop or scratch the bulb. You or
others could be injured. Be sure to read and
follow the instructions on the bulb package.
1
Sealed Beam Headlamps
1. Remove the
four screws from
the headlamp retainer.
2. Pull the headlamp out and remove the retainer.
6-37
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Page 340 of 433

Vehicle Identification Number (VIN)
II I
1
- I1 11111111 1111 111 111111 111 111111 I1 111111111111 111111111 IIrn 0
@ SAMPLE4UXVM072675
CODE- MOD
This is the legal identifier for your vehicle. It appears on
a plate in the front corner of the instrument panel, on the
driver’s side. You can see it if you look through the
windshield from outside your vehicle. The VIN also
appears on the Vehicle Certification and Service Parts
labels and the certificates
of title and registration.
Engine Identification
The 8th character in your VIN is the engine code. This
code will help
you identify your engine, specifications
and replacement parts.
Service Parts Identification Label
You’ll find this label on the inside of the glove box. It’s
very helpful if
you ever need to order parts. On this
label
is:
0 your VIN,
0 the model designation,
0 paint information and
0 a list of all production options and
Be sure that this label is not removed from the vehicle.
special equipment.
6-61
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Page 343 of 433
Fuse/Circuit Breaker Usage
4
Fuse/Circuit Breaker Usage
1 Stop/TCC Switch, Buzzer, CHMSL,
2 Transfer Case
Hazard Lamps, Stoplamps
3 Courtesy Lamps, Cargo Lamp, Glove
Box Lamp, DomeReading Lamps,
Vanity Mirrors, Power Mirrors 10
11
12
13 Instrument Cluster, DRL
Relay, Lamp
Switch, Keyless Entry, Low Coolant
Module, Illuminated Entry Module,
DRAC (Diesel Engine)
Rear Comfort Controls
Cruise Control
Auxiliary Power Outlet
Air Bag System
License Lamp, Parking Lamps,
Taillamps, Roof Marker Lamps,
Tailgate Lamps, Front Sidemarkers,
Fog Lamp Relay, Door Switch
Illumination, Fender Lamps,
Headlamp Switch Illumination
Air Bag System
Wiper Motor, Washer Pump
NC, A/C Blower, High Blower Relay
Power Amp, Rear Liftglass, Cigarette
Lighter, Door Lock Relay, Power
Lumbar Seat
,
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Page 344 of 433

15
16
Fuse/Circuit Breaker Usage
14 4WD Indicator, Cluster, Front and
Rear Comfort Controls, Instrument
Switches, Radio Illumination,
Chime Module
DRL Relay, Fog Lamp Relay
17
18
19
20
21
22
23
24
A
B Front and Rear Turn Signals,
Back-up
Lamps, BTSI Solenoid
Radio (Ignition)
4WALNCM, ABS, Cruise Control
Radio (Battery)
PRNDL, Automatic Transmission, Speedometer, Check Gages,
Warning Lights
Variable Effort Steering
Not Used
Rear Wiper, Rear Washer Pump
Front Axle, 4WD Indicator Lamp,
TP2 Relay (Gasoline Engine)
Power Door Lock, Six-Way Power
Seat, Keyless Entry Module
Power Windows
Underhood Fuse/Relay Center
The underhood fusehelay 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.
6-65
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Page 345 of 433
Name
ECM-B
RR DEFOG
IGN-E
Circuits Protected
Fuel Pump, PCMNCM
Rear Window Defogger
Auxiliary Fan Relay Coil,
A/C Compressor Relay,
Hot Fuel Module
Name
FUEL SOL
GLOW PLUG
HORN
AUX FAN
ECM-
1
AIC ENG-
1
LIGHTING
BATT
IGN-A IGN-B
ABS
BLOWER
STOP/HAZ
Circuits Protected
Fuel Solenoid (Diesel Engine)
Glow plugs (Diesel Engine)
Horn, Underhood Lamps
Auxiliary Fan
Injectors, PCMNCM
Air Conditioning
Ignition Switch, EGR, Canister
Purge, EVRV Idle Coast Solenoid,
Heated
02, Fuel Heater
(Diesel Engine), Water Sensor
(Diesel Engine)
Headlamp and Panel Dimmer
Switch, Fog and Courtesy Fuses
Battery, Fuse Block Busbar
Ignition Switch
Ignition Switch Anti-Lock Brake Module
Hi Blower and Rear
Blower Relays
Stoplamps
6-66
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Capacities and Specifications
Please refer to “Recommended Fluids and Lubricants”
in the Index for more information.
Type
RPO Code
VIN Code
Fuel System
Engine Identification -- Gasoline Engines
Engine “VORTEC” “VORTEC”
5700 7400
V8 V8
L3 1 L29
R J
SFI* SFI*
*Sequential Fuel Injection
Wheels and Tires
MODEL DESCRIPTION
C 1500 5 bolts ( 14 mm)
K 1500, 6 bolts (14 mm)
C-IS
2500
TORQUE
(190 Nam)
(190 N-m) 140 lb-ft
140 lb-ft
C-K 2500 8 bolts ( 14 mm) 140 lb-ft
(190 N-m)
Tire Pressure See the Certificationmire label on
the rear edge of the driver’s door
or the incomplete vehicle document in the cab.
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Page 349 of 433

Normal Maintenance Replacement Parts -- Gasoline Engines
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.
Engine
“VORTEC” 5700
VIN R
Oil Filter AC Type PF1218f
Air Cleaner Filter AC Type A1300C
Spark Plugs
AC Type 4 1-932
Spark Plug Gap 0.060
in. (1.52 mm)
Fuel Filter AC Type GF626
Wiper Blades (Front) GM Part No. 22154886
Wiper Blade Type (Front) Trico
Wiper Blade Length (Front) 18 inches (45.0 cm)
Wiper Blade (Rear) GM Part
No. 22154396
Wiper Blade Type (Rear) Trico
Wiper Blade Length (Rear) 14 inches (35.5 cm)
“four-Wheel-Drive Vehicles
-- use a PF52 oil filter.
‘VORTEC” 7400
J
AC Type PF1218
AC Type A1300C AC Type 41-932
0.060 in. (1.52 mm)
AC Type GF626
GM Part
No. 22154886
Trico
18 inches
(45.0 cm)
GM Part No. 22154396
Trico
14 inches (35.5 cm)
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