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Vehicle Identification Number (VIN)
111 1111 111 111111 II 1111 II 1111
SAMPLE4UXWM072675
ENGlNEA98 f ASSEMBLY
CODE MODEL YEAR PLANT
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 front passenger door frame.
It’s very helpful if you ever need
to order parts. On this
label is:
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.
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Engine Compartment Fuse Relay Center
The fuse block is on the driver’s side of the engine
compartment at the rear.
NAME
BLOWER
ABS
CIRCUITS PROTECTED
Front Blower Motor
Electronic Brake Control Module
NAME
IGN-B
IGN-A
BATT
LIGHTING
CIRCUITS PROTECTED
Ignition Switch
Starter Relay, Ignition Switch
Instrument Panel Fuse Block
Instrument Panel Fuse Block,
Headlamp Switch
RR BLOWER Rear Auxiliary Blower Motor Relays
ENG-I
AIC
SPARE
AUX A
AUX B
RH-HDLP
Heated 02 Sensors, Mass Air Flow
Sensor, EGR Valve Solenoid, Evap
Canister Purge Valve, Crankshaft
Position Sensor, Secondary Air
Injection Relay (Diesel), Water in
Fuel Sensor (Diesel), Fuel Heater
(Diesel), Glowplug Relay (Diesel),
Wastegate Solenoid (Diesel)
Air Conditioning Clutch Relay
Spare Fuses
Upfitter Provisions
Upfitter Provisions Right-hand Headlamp (Export only)
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NAME
RH-HIBM
ECM-I
HORN
LH-HDLP
LH-HIBM
FUEL SOL
IGN-E
ECM-B
CIRCUITS PROTECTED
Right-hand High-beam Headlamp
(Export only)
Ignition Coil, Camshaft Position
Sensor,
VCM, Fuel Injectors, Coil
Driver
Horn Relay, Underhood Lamp( s)
Left-hand Headlamp (Export
only)
Left-hand High-beam Headlamp
(Export only)
PCM,
Fuel Solenoid Driver, Engine
Shutoff Solenoid
Air Conditioning Clutch Relay
Fuel Pump Relay, VCM, PCM, Fuel
Pump and Engine Oil Pressure
Switch
Replacement Bulbs
LAMP OR BULB
Sealed Beam Headlamps
Composite Low-Beam
Headlamps
Composite High-Beam
Headlamps
Front Sidemarker Lamp
Front Parking and Turn Lamp
Rear Parking Lamp
Rear Stop and Turn Lamp
Back- up Lamp
Back-up Lamp
Rear Parking, Stop, and
Turn Lamp
CHMSL
License Plate Lamp
Underhood Lamp
Reel Lamp
Reading Lamps
Sunshade Vanity Mirror
QTY NUMBER
2 H6054
2 6052
2
2
4
2
1
1
1
6
4
9005
194
2357NA
3057
3057
3156
1156 1157
92
1
194
232
232
211-2
74
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Capacities and Specifications
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.
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.
Engine Identification -- Gasoline Engines
Engine “VORTEC” 4300 “VORTEC” 5000
Type V6 V8
VIN Code w M
Fuel System CSFI~ CSFI~
*Central Sequential Fuel Injection
2Sequential
Fuel Injection
“VORTEC” 5700
V8
R
CSFI~
“VORTEC” 7400
V8
J
SFI~
Wheel Nut Torque
MODEL TORQUE
All 140 ft-lb (190 N-m)
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Cooling System Capacity (Approximate)
ENGINE VIN QTY Without Rear Heater
“VORTEC”4300 W 11 Quarts (10.4 L)
“VORTEC”5000 M 17 Quarts (16 L)
“VORTEC”5700 R 17 Quarts (16 L)
“VORTEC”7400 J 23 Quarts (21.8 L)
QTY With Rear Heater
14 Quarts (13.2 L)
20 Quarts (18.9 L)
20 Quarts (18.9 L)
26 Quarts (24.6 L)
After refill, the level MUST be checked as outlined under “Engine Cooling System” in Section 5.
Crankcase Capacity (Approximate)
ENGINE VIN Quantity With Filter
“VORTEC”4300 W 4.5 Quarts (4.3 L)
“VORTEC”5000 M 5 Quarts (4.8 L)
“VORTEC”5700 R 5 Quarts (4.8 L)
“VORTEC”7400 J 6.6 Quarts (6.24 L)
After refill, the level MUST be rechecked. Add enough engine oil so that the fluid is within the proper operating
range. See “Engine Oil” in the Index.
*Add one additional quart for
RPO 5Z1 and RPO KL5 Models.
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Fuel Tank Capacity (Approximate)
TYPE QUANTITY
Standard Tank 3 1 Gallons (117.33 L)
Standard Tank 33 Gallons (124.90 L)
Optional Tank* 55 Gallons (208.18 L)
** 159”, 177” Wheelbase Vehicles Only.
MODEL TYPE
Passenger and Cargo
Cab and Chassis
Cab and Chassis
Normal Maintenance Replacement Parts
Engine “VORTEC”4300 “VORTEC”5000
VIN W M
Oil Filter PF52 PF1218
Air Cleaner Filter
* A917C A917C
PCV Valve CV789C cv774c
Spark Plugs 41-932 4 1-932
Fuel Filter GF48 1 GF48 1
Radiator Cap
RC36 RC36
“VORTEC”5700
R
PF1218
A917C
cv774c 4 1-932
GF48 1
RC36
“VORTEC”7400
J
PF1218 A917C
cv774c 4 1-932
GF48
1
RC36
* Replace with AC Air Filter, Part No. A917C and for severe dusty conditions, use AC Air Filter, Part No. 1236C.
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I IMPORTANT: I
KEEP ENGINE OIL
AT THE PROPER
LEVEL AND CHANGE
AS
RECOMMENDED
Introduction
Your Vehicle and the Environment
Proper vehicle maintenance not only helps to keep your
vehicle in good working condition, but also helps the
environment. All recommended maintenance procedures
are important. Improper vehicle maintenance can even
affect the quality
of the air we breathe. Improper fluid
levels or
the wrong tire inflation can increase the level
of emissions from your vehicle. To help protect our
environment, and to keep your vehicle in good
condition, please maintain your vehicle properly.
Have you purchused the GM Protection Plan? The Plan
supplements
your new vehicle warranties. See your
Warranty and Owner Assistance booklet,
or your GM
dealer for detuils.
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Part A: Scheduled Maintenance
Servk - s
Using Your Maintenance Schedule
We at General Motors want to help you keep your vehicle
in good working condition. But we don’t know exactly
how you’ll drive it. You may drive very short distances
only a few times a week.
Or you may drive long distances
all the time in very hot, dusty weather. You may use your
vehicle
in making deliveries. Or you may drive it to work,
to do errands or
in many other ways.
Because of all the different
ways people use their
vehicles, maintenance needs
vary. You may even need
more frequent checks and replacements than you’ll find
in the schedules in this section.
So please read this
section and note how you drive. If you have any
questions
on how to keep your vehicle in good
condition, see your
GM dealer.
This part tells you the maintenance services you should
have done and when you should schedule them. If you
go to your dealer for your service needs, you’ll know
that GM-trained and supported service people will
perform the work using genuine GM
parts.
The proper fluids and lubricants to use are listed in Part D.
Make sure whoever services your vehicle uses these. All
parts should be replaced
and all necessary repairs done
before you or anyone else
drives the vehicle.
These schedules are for vehicles that:
carry passengers and cargo within recommended
limits. You will find these limits on your vehicle’s
Certificationflire label. See “Loading Your Vehicle’’
in the Index.
are driven on reasonable road surfaces within legal
driving limits.
use the recommended fuel. See “Fuel” in the Index.
Selecting the Right Schedule
First you’ll need to decide which of the two schedules is
right for your vehicle. Here’s how
to decide which
schedule to follow:
Gasoline engine vehicles
and diesel engine vehicles
have different maintenance requirements. If you have
a
diesel engine, follow a schedule designated for diesel
engine vehicles only.
See the Diesel Engine Supplement for diesel engine
maintenance schedules.
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