Transmission Temperature Gage.....................3-39
Exhaust Brake Indicator Light.........................3-40
Differential Lock Indicator Light.......................3-40
Reduced Engine Power Light.........................3-41
Highbeam On Light.......................................3-41
Daytime Running Lamps (DRL) Indicator Light.....3-41
Low Washer Fluid Warning Light.....................3-42
Check Gages Warning Light...........................3-42
Fuel Gage...................................................3-42
Water in Fuel Warning Light...........................3-43
Air Filter Restriction Indicator..........................3-43
Air Pressure Gage........................................3-44
Hourmeter Gage...........................................3-44Audio System(s).............................................3-44
Setting the Time...........................................3-45
AM-FM Radio...............................................3-45
Radio with Cassette......................................3-48
Radio with CD..............................................3-53
Theft-Deterrent Feature (Non-RDS Radios).......3-57
Radio Reception...........................................3-57
Care of the Cassette Tape Player...................3-58
Care of Your CDs.........................................3-59
Care of the CD Player...................................3-59
Fixed Mast Antenna......................................3-59
Chime Level Adjustment................................3-59
Section 3 Instrument Panel
3-2
If your vehicle has dual fuel tanks, the reading on the
gage is the total fuel left in both tanks.
Here are four concerns of some operators. None of
these shows a problem with your fuel gage:
•The gage moves a little when you turn a corner or
speed up.
•The gage does not go back to empty when you turn
off the ignition.
•At the gas station, the pump shuts off before the
gage reads full.
•It takes a little more or less fuel to fill up than the
gage indicated.
If you have a Caterpillar
®diesel engine, also see your
Caterpillar®Operation & Maintenance Manual.
Water in Fuel Warning Light
If your vehicle has the 6.6L
or 7.8L DURAMAX®diesel
engine, this light will
come on to warn you that
there is water in the
fuel system.
For more information on how this light works, seeWater
in Fuel on page 5-10.
Air Filter Restriction Indicator
If your vehicle has this
feature, the gage is
located above the
switchbank in the center of
the instrument panel. It
monitors the engine
air filter.
As the filter gets dirty, the yellow indicator will begin to
rise. When it reaches 25 inches of vacuum on the
scale, the filter should be replaced.
After replacing the filter, reset the gage by pressing in
the yellow reset button at the bottom of the gage.
If you have a Caterpillar
®diesel engine, also see your
Caterpillar®Operation & Maintenance Manual.
3-43
Service............................................................5-3
Doing Your Own Service Work.........................5-4
Two Safety Cautions about Engine Fan
Breakage...................................................5-5
Fuel................................................................5-6
Gasoline Octane............................................5-6
Gasoline Specifications....................................5-6
Additives.......................................................5-6
Diesel Engine Fuel.........................................5-7
What Fuel to Use...........................................5-8
Very Cold Weather Operation.........................5-10
Water in Fuel...............................................5-10
Running Out of Fuel.....................................5-15
Fuel Filter Replacement.................................5-16
Fuels in Foreign Countries.............................5-17
Filling the Tank............................................5-18
Filling a Portable Fuel Container.....................5-19
Checking Things Under the Hood....................5-20
Hood Latches...............................................5-20
Engine Oil (Caterpillar
®Diesel Engine).............5-22
Engine Oil (DURAMAX®Diesel)......................5-22
Engine Oil (Gasoline Engine)..........................5-26
Engine Oil Life System (Gasoline Engine)........5-29
Engine Oil Life System (DURAMAX
®Diesel).....5-31
Engine Oil Life System (Caterpillar®
Diesel Engine)..........................................5-32Engine Air Cleaner/Filter................................5-33
Automatic Transmission Fluid.........................5-34
Manual Transmission Fluid.............................5-35
Engine Coolant (Gas and
DURAMAX
®Engines).................................5-36
Engine Coolant (Caterpillar®Diesel Engines).....5-38
Coolant Surge Tank Pressure Cap..................5-38
Engine Overheating.......................................5-38
Cooling System (Gas and
DURAMAX
®Engines).................................5-40
Engine Fan Noise.........................................5-45
Power Steering Fluid.....................................5-45
Windshield Washer Fluid................................5-46
Brakes........................................................5-47
Battery........................................................5-55
Jump Starting...............................................5-56
Rear Axle.......................................................5-60
Rear Axle Shift Motor....................................5-62
Four-Wheel Drive............................................5-62
Front Axle......................................................5-63
Noise Control System.....................................5-64
Tampering with Noise Control System
Prohibited.................................................5-64
Bulb Replacement..........................................5-65
Windshield Wiper Blade Replacement..............5-65
Section 5 Service and Appearance Care
5-1
Other Service Items........................................5-66
Fuel Filter....................................................5-66
Primary Fuel Filter and Water Separator..........5-67
Secondary Fuel Filter and Water Separator/
Heater (Caterpillar
®Diesel)..........................5-68
Automatic Ether Injection System
(Caterpillar
®Diesel)....................................5-68
Front Wheel Bearings with Oil-Filled Hubs........5-69
Air Conditioning System.................................5-70
Tires..............................................................5-70
Inflation - Tire Pressure.................................5-71
Wheel Loading.............................................5-71
Dual Tire Operation.......................................5-72
When It Is Time for New Tires.......................5-72
Wheel Alignment and Tire Balance..................5-73
Tightening the Wheel Nuts.............................5-73
Wheel Replacement......................................5-77
If a Tire Goes Flat........................................5-78
Appearance Care............................................5-79
Cleaning the Inside of Your Vehicle.................5-80
Fabric/Carpet...............................................5-81
Instrument Panel, Vinyl, and Other
Plastic Surfaces........................................5-82
Care of Safety Belts......................................5-82
Weatherstrips...............................................5-82Washing Your Vehicle...................................5-83
Cleaning Exterior Lamps/Lenses.....................5-83
Finish Care..................................................5-83
Windshield and Wiper Blades.........................5-84
Aluminum or Chrome-Plated Wheels................5-84
Tires...........................................................5-85
Sheet Metal Damage.....................................5-85
Finish Damage.............................................5-85
Underbody Maintenance................................5-85
Chemical Paint Spotting.................................5-85
Vehicle Identi cation......................................5-87
Vehicle Identification Number (VIN).................5-87
Service Statement.........................................5-87
Service Parts Identification Label.....................5-88
Electrical System............................................5-88
Add-On Electrical Equipment..........................5-88
Headlamp Wiring..........................................5-88
Windshield Wiper Fuses................................5-88
Fusible Links................................................5-89
Power Windows and Other Power Options.......5-89
Fuses and Circuit Breakers............................5-89
Instrument Panel Fuse Block..........................5-89
Underhood Fuse Block..................................5-92
Capacities and Speci cations..........................5-95
Normal Maintenance Replacement Parts.........5-100
Section 5 Service and Appearance Care
5-2