1996 CHEVROLET SUBURBAN heater

NOTICE:
In cold weather, water can freeze and crack the engine, radiat\
or,
heater core and other parts.
So use the recommended coolant.
1. You can remove the coolant surge tank pressure cap when the cooling
system, including the coolant surge tank pressure cap and upper
radiator hose, is no longer hot. Turn the pressure cap slowly to the left
until
it first stops. (Don’t press down while turning the pressure cap.)
If you hear a hiss, wait for that
to stop. A hiss means there is still some
pressure left.
5-21
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NOTICE:
Use only engine oil with the American Petroleum Institute
Certified For Gasoline Engines “Starburst” symbol. Failure \
to
use the proper oil can result in engine damage not covered by
your warranty.
GM Goodwrench@ oil (in Canada, GM Engine Oil) meets all the
requirements for your vehicle.
Engine Oil Additives
Don’t add anything to your oil. Your GM dealer is ready to advise if you
think something should be added.
When to Change Engine Oil
See if any one of these is true for you:
Most trips are less than 5 to 10 miles (8 to 16 km). This is particularly
important when outside temperatures are below freezing.
0 Most trips include extensive idling (such as frequent driving in stop and
go traffic).
Most trips are through dusty areas.
You operate your vehicle in dusty areas or off-road frequently.
0 You frequently tow a trailer or use a carrier on top of your vehicle.
If any one of these
is true for your vehicle, then you need to change your oil
and filter every 3,000 miles (5 000 km) or 3 months - whichever comes
first.
Light Duty Emissions:
If none of them is true, change the oil and filter every 7,500 miles (1 2 500
km) or 12 months - whichever comes first.
Heavy Duty Emissions:
If none of them is true, change the oil and filter every 6,000 miles (10 000
km) or 12 months - whichever comes first.
Engine Coolant Heater
An engine coolant heater can be a big help if you have to park outside in
very cold weather, 0°F (- 18OC) or colder. If your vehicle has this option,
see “Engine Coolant Heater” in the Index.
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Specification 6038-M.” Use GM Coolant Supplement (Sealer) with a
complete coolant flush and refill. If
you use this mixture, you don’t need to
add anything else.
NOTICE:
If you use an improper coolant mix, your engine could overheat
and be badly damaged. The repair cost wouldn’t be covered by
your warranty.
Too much water in the mix can freeze and crack
the engine, radiator, heater core and other parts.
Some conditions, such
as air trapped in the cooling system, can affect the
coolant level
in the radiator. Check the coolant level when the engine is cold
and follow the steps under “Adding Coolant”
for the proper way to add
coolant.
If you have to add coolant more than four times
a year, have your dealer
check
your cooling system.
I NOTICE:
If you use the proper coolant, you don’t have to add extra
inhibitors or additives which claim to improve the system. These
can be harmful.
6-34
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Engine Identification - Diesel Engines
Engine Type
VTN Code
Fuel System
Wheel Nut Torque
MODEL
C 1500
K 1500, C-K 2500
C-K 2500
6.5L
V8
S
Turbo Diesel
DESCRIPTION
5 bolts (14mm)
6 bolts
(1 4mm)
8 bolts ( 14mm)
Cooling System Capacity
ENGINE
5.7L
6.5L
6.5L 7.4L
VIN
K
S
F
N
6.5L
V8
F
Turbo Diesel
TORQUE
120 ft. Ibs. ( 160 N*m)
120 ft. Ibs. (1 60 Nom)
I20
ft. lbs. ( 160 Nom)
QTY Without
Rear Heater*
1 7.5 Quarts
( 16.5 Liters)
23.5 Quarts (22.2 Liters)
23.5 Quarts
(22.2 Liters)
25 Quarts
(23.5
Liters)
QTY With
Rear Heater4’
20 Quarts (1 9
Liters)
27.5 Quarts (26
Liters)
27.5 Quarts (26
Liters)
27.5 Quarts (26
Li ters)
After refill. the level MUST be checked
as outlined under “Engine Cooling
System” in Section 5.
‘$All quantities are approximate.
6-77
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Index
A
Adding Equipment to Your Air Bag-Equipped Vehicle (See “Supplemental
Inflatable Restraint System (SIR)”) Air Bag (See “Supplemental Inflatable Restraint System (SIR)”)
Readiness Light (See “Lights”)
Air Cleaner (See “Engine-Air Cleaner”)
Air Conditioning (See “Heater/Air Conditioning Controls”)
Antenna
....................................................... 3-28
Anti-Lock Brakes (See “Brakes”)
Appearancecare
............. i .................................. 6-62
Materials Chart
............................................... 6-71
Arbitration Program (See “Better Business Bureau Mediation”)
Audiosystems
................................................... 3-9
Care of Your Cassette Player and Tape
............................. 3-27
Care of Compact Discs
......................................... 3-28
ETR@ AM-FM Stereo Audio Cassette System
...................... 3-12
ETR@ AM-FM Stereo Audio Cassette ATC System
.................. 3-14
ETR@ AM-FM Stereo Audio Compact Disc (CD) ATC System
......... 3-19
Remote Cassette Player
...................................... 3-25
ETR@’AM-FM Stereo Audio System
.............................. 3-10
THEFTLOCK Theft Deterrent Feature
........................ 3-17, 3-23
Understanding Radio Reception
.................................. 3-26
Automatic Transmission (See “Transmission”)
Axle Front (See “Four-wheel Drive”)
LockingRe ar
................................................. 2-25
Rear
........................................................ 6-31
B
Battery ........................................................ 6-45
Belts (See “Safety Belts”)
Better Business Bureau Mediation
.................................... 8-3
Blizzard (See “Driving-If You’re Caught in a Blizzard”)
Brakes Adjustment
.................................................. 643
Anti-Lock (ABS)
.............................................. 4-5
Anti-Lock Warning Light (See “Lights”)
Hydro-Boost Brake System (Hydraulic Pump)
...... ......... 6-39
Master Cylinder
.............................................. 6-41
Parking ..................................................... 2-26
PedalTravel ................................................. 6-43
Replacingparts
............................................... 6-44
System Warning Light (See “Lights”)
To Check Brake Fluid
........................................ 6-42
Trailer (See “Trailer-Brakes”)
Transmission Shift Interlock (BTSI)
............................... 2-21
Wear
....................................................... 6-43
Braking
......................................................... 4-5
In Emergencies
................................................ 4-7
Break-In. New Vehicle ............ .......................... 2-10
1
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E
Eiectrical System
Engine Add-On
Equipment
........................................... 6-74
Adding Coolant
. Diesel Engine ........................... 5.18, 636
Adding Coolant
- Gasoline Engine .... , .................... 5-1 1’6-35 .
Air Cieaner
Coolant
.........................
Coolant Heater ...................
Coolant Temperature Gage (See “Gages‘
Diesel Heater Output
...............
.
......................
Control Module System ............
........................... 6-25
........................... 6-53
........................... 6-33
.................. 2-19.3-4. 6-19
1
............................ 3-4
Exhaust
..................................................... 2-31
FanNoise
................................................... 5-24
Identification .................................. 6-72.6-73.6-76. 6-77
Oil (See “Oil”)
Overheating
................................................... 5-9
RunningWhileParked ......................................... 2-32
Starting Your Gasoline Engine
................................... 2-13
Starting Your Diesel Engine
..................................... 2-15
Exhaust System
............................................... 6-53
F
Filter Replacement Chart (See “Service-Replacement Parts and Filter
Recommendations’’)
Fluid Capacities (See “Capacities and Specification”)
Fluid Leak Check
..................................... ........ 6-45
Fluids (See “Scheduled Maintenance Services”)
Four-WheelDrive
............................................... 2-33
Front Axle Locking Feature
..................................... 2-35
Transfer Case
........................................... 2-33. 6-32
Canadian
..................................................... 6-5
Diesel
....................................................... 6-4
Filling Your Tank ............................................. 6-11
Foreign Countries (Gasoline Engines)
............................. 6-11
Filter Replacement (Diesel Engines)
............................... 6-9
Gage (See “Gages”)
Gasoline
..................................................... 6-2
Gasolines for Cleaner Air
........................................ 6-3
Running Out of Fuel (Diesel Engines) .............................. 6-8
Tankcapacity ................................................ 6-78
Water in Fuel (Diesel Engines) ............................... 2-70. 6-5
Fuses and Circuit Breakers ................................... 6-75. 6-81
FuseBlock
............................................. 6-766-80
Fuel
4
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G
Gages Engine Coolant Temperature Gage
................................
FuelGage ...................................................
Oil Pressure Gage .............................................
Speedometer .................................................
Tachometer ..................................................
Tamper Resistant Odometer .....................................
Trip Odometer ................................................
Voltmeter ....................................................
2-79
2-78
2-80
2-68
2-69
2-68
2-68
2-81
Halogen Bulbs (See “Bulb Replacement”)
Hazard Warning Flashers
........................................... 5-1
Head Restraints (See “Seats”)
Headlamps and Vehicle Lighting
.................................... 2-48
Replacement (See “Bulb Replacement”)
High Beam Indicator Light (See “Lights”)
High-LowBeamChanger
...................................... 2-38
Reminder .................................................... 2-46
Heatercontrols .................................................. 3-1
RearHeater ................................................... 3-5
Heater/Air Conditioning Controls .................................... 3-2
Rear Air Conditioning ........................................... 3-4
Refrigerant Capacity ........................................... 6-79
Highway Hypnosis (See “Driving-Highway Hypnosis”)
Hitches (See “Towing-Hitches”)
Hood Checking Under, Hood Release
.................................. 6-13
Horn .......................................................... 2-38
Hydraulicclutch ................................................ 6-30
Howtocheck ................................................ 6-31
When to Check and What to Use ................................. 6-31
Hydroplaning (See “Driving in the Rain”)
If You’re Stuck in Sand. Mud. Ice. or Snow ........................... 5-41
Ignitionswitch .................................................. 2-12
Inflation-Tire Pressure (See “Tires”)
Instrument Cluster
............................................... 2-67
Instrumentpanel ................................................ 2-67
Jacking Equipment Storage ................................... 5.26. 5-40
Jump Starting .................................................... 5-2
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