Page 311 of 436

Brakes
Brake Fluid
Your brake master cylinder
reservoir is here. It
is filled
with
DOT-3 brake fluid.
There are
only two reasons why the brake fluid level in
the reservoir might go down. The first is that the brake
fluid goes down to an acceptable level during normal
brake lining wear. When new linings are put in, the fluid
level goes back up. The other reason
is that fluid is
leaking out of the brake system.
If it is, you should have
your brake system fixed, since a leak means that sooner
or later your brakes won’t work well, or won’t work
at all.
So, it isn’t a good idea to “top off’ your brake fluid.
Adding brake fluid won’t correct a leak.
If you add fluid
when your linings are worn, then
you’ll have too much
fluid when you get new brake linings. You should add
(or remove) brake fluid,
as necessary, only when work is
done on the brake hydraulic system.
I
If you have too much brake fluid, it can spill
on the engine. The fluid will burn if the engine
is hot enough. You or others could be burned,
and your vehicle could be damaged. Add brake
fluid only when work is done on the brake
hydraulic system.
Refer to the Maintenance Schedule to determine when to
check your brake fluid. See “Periodic Maintenance
Inspections”
in the Index.
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FuseKircuit Breaker
15
16
17
18
19
20
21
22
23
24
A
B
Usage
DRL Relay, Fog Lamp Relay
Front and Rear Turn Signals,
Back-up Lamps, BTSI Solenoid
Radio (Ignition)
LCWALNCM, ABS, Cruise Control
Radio (Battery)
PRNDL, Automatic Transmission, Speedometer, Check Gages
Warning Light
Variable Effort Steering
Not Used
Not Used
Front Axle, 4WD Indicator Lamp,
TP2 Relay (Gasoline Engine)
Power Door Lock, Six-Way Power
Seat, Keyless Entry Module
Power Windows
Underhood Fusemelay 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.
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Fuel Tank Capacity (Approximate)
Type
Short Bed
Long Bed Standard Crew Cab
Chassis-Cab Side Tank
Chassis-Cab Rear Tank 3500
HD Models Side Tank
3500
HD Models Rear Tank
Cooling System Capacity (Approximate)
After refill, the level must be rechecked. See “Cooling
System” in the Index.
Engine
“VORTEC” 4300
“VORTEC”
5000
“VORTEC” 5700
“VORTEC” 7400
“VORTEC”
7400
w/3500 HD
VIN
W
M
R
J
J
Quantity
13 quarts (12.3 L)
17.5 quarts (16.6 L)
17.5 quarts (16.6 L)
25 quarts (23.5 L)
28.5 quarts (27 L)
Crankcase Capacity (Approximate)
After refill, the level must be rechecked. See “Engine
Oil” in the Index.
Engine
“VORTEC” 4300
“VORTEC”
5000
“VORTEC” 5700”
“VORTEC” 7400*
VIN
W
M
R
J
Quantity with Filter?
5 quarts (4.8 L)
5 quarts (4.8 L)
7 quarts (6.5 L)
4.5 quarts (4.3
L)
?Oil
filter should be changed at every oil change.
*Add one additional quart (.946
L) for C-3500 HD Models.
Quantity
26 gallons (98 L)
34 gallons (128 L)
34 gallons (128 L)
22 gallons (83 L)
18 gallons (68 L)
22 gallons (83 L)
18 gallons (68 L)
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 GM dealer.
See the refrigerant charge label under the hood for
information regarding refrigerant capacity.
6-78
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Page 358 of 436

Part A: Scheduled Maintenance
Services
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 GM
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:
0
0
0
0
carry passengers and cargo within recommended
limits. You will find these limits on your vehicle’s
Certificatioflire label. See “Loading Your Vehicle”
in the Index.
are driven
on reasonable road surfaces within legal
driving limits.
are driven off-road in the recommended manner. See
“Off-Road Driving With Your Four-Wheel-Drive
Vehicle’’
in the Index.
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.
7-4
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Page 361 of 436

Short TripKity Maintenance Schedule =- Gasoline Engines
The services shown in this schedule up to 100,000 miles
(166 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals. The services shown
at 150,000 miles (240 000 km) should be performed at
the same interval after 150,000 miles (240 000 km).
See “Owner Checks and Services” and “Periodic
Maintenance Inspections” following.
Footnotes
The U.S. Environmental Protection Agency or the
California
Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to the
completion of the vehicle’s useful life. We, however, urge
that all recommended maintenance services
be performed
at the indicated intervals and the maintenance be recorded.
# Lubricate the front suspension, kingpin bushings,
steering linkage, transmission shift linkage, transfer case
shift linkage, parking brake cable guides, rear driveline
center splines, front axle propshaft splines and brake
pedal springs. Ball joints and kingpin bushings should
not be lubricated unless their temperature
is 10°F
(- 12°C) or higher, or they could be damaged.
+ A good time to check your brakes is during tire
rotation. See “Brake System Inspection’’ under “Periodic
Maintenance Inspection”
in Part C of this schedule.
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Page 362 of 436

Short TripKity Maintenance Schedule -- Gasoline Engines
** Drive axle service (see “Recommended Fluids and
Lubricants”
in the Index for proper lubricant to use):
0
e
0
0
Locking Differential -- Drain fluid and refill at first
engine oil change. At subsequent oil changes, check
fluid level and add fluid as needed. If driving in
dusty areas
or towing a trailer, drain fluid and refill
every 15,000 miles
(25 000 km).
Standard Differential -- Check fluid level and add
fluid
as needed at every oil change. If driving in
dusty areas or towing a trailer, drain fluid and refill
every
15,000 miles (25 000 km).
More frequent lubrication may be required for
heavy-duty
or off-road use.
3500 HD Models with applications requiring extreme
overloadtrailer towing conditions and high-speed (above
45 mph or 70 km/h) conditions for extended
periods of time must have the drive axle fluid changed every
30,000 miles (50 OOO km). See “Recommended
Fluids and Lubricants” in this section.
3,000 Miles (5 000 km)
0 Change engine oil and filter (or every
3 months, whichever occurs first).
An Emission Control Service.
0 Lubricate chassis components (or every
3 months, whichever occurs first).
(See footnote
#.)
0 Check readfront axle fluid level and add
fluid as needed. Check constant velocity
joints and axle seals for leaking.
(See footnote **.)
DATE ACTUAL MILEAGE SERVICED BY:
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Page 363 of 436
1 Short Trip/City Maintenance Schedule =- Gasoline Engines I
6,000 Miles (10 000 km)
Change engine oil and filter (or every
3 months, whichever occurs first).
An Emission Control Service.
0 Lubricate chassis components (or every
3 months, whichever occurs first).
(See footnote
#.)
0 Check readfront axle fluid level and add fluid
as needed. Check constant velocity joints and
axle seals for leaking. (See footnote
**.)
Rotate tires. See “Tire Inspection and
Rotation” in the Index for proper rotation
pattern and additional information.
(See footnote
+.)
9,000 Miles (15 000 km)
0 Change engine oil and filter (or every
3 months, whichever occurs first).
An Emission Control Service.
0 Lubricate chassis components (or every
3 months, whichever occurs first).
(See footnote
#.)
0 Check readfront axle fluid level and add
fluid as needed. Check constant velocity
joints and axle seals for leaking.
(See footnote
**.)
DATE SERVICED BY: ACTUAL MILEAGE
7-9
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Page 364 of 436
Short TripKity Maintenance Schedule -- Gasoline Engines
12,000 Miles (20 000 km)
0 Change engine oil and filter (or every
3 months, whichever occurs first).
An Emission Control Service.
0 Lubricate chassis components (or every
3 months, whichever occurs first).
(See footnote
#.)
0 Check readfront axle fluid level and add fluid
as needed. Check constant velocity joints
and
axle seals for leaking. (See footnote **.)
0 Rotate tires. See “Tire Inspection and
Rotation”
in the Index for proper rotation
pattern and additional information.
(See footnote
+.)
15,000 Miles (25 000 km)
0 Change engine oil and filter (or every
3 months, whichever occurs first).
An Emission Control Service.
0 Lubricate chassis components (or every
3 months, whichever occurs first).
(See footnote
#.).
0 Check readfront axle fluid level and add
fluid
as needed. Check constant velocity
joints and axle seals for leaking.
(See footnote
**.)
7-10
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