Turn off the engine
and give the oil
a few
minutes
to drain back
into the oil pan.
If you
don’t, the oil dipstick
might not show the
actual level.
To Check Engine Oil
Pull out the dipstick and clean it with a paper towel or cloth, then push it
back in all the way. Remove it again, keeping the tip down.
When to Add Oil
If the oil is at or below the ADD mark, then you’ll need to add some oil. But
you must use the right kind. This part explains what kind of oil to use. For
crankcase capacity, see “Capacities and Specifications” in the Index.
NOTICE:
Don’t add too much oil. If your engine has so much oil that the
oil level gets above the upper mark that shows the proper
operating range,
your engine could be damaged.
6-15
ProCarManuals.com
To Check Engine Oil
Pull out the dipstick and clean it with a paper towel or a cloth, then push it
back in all the way. Remove it again, keeping the tip down.
When to Add Oil
If the oil is at or below the ADD line, then you’ll need to add some oil. But
you must use
the right kind. This part explains what kind of oil to use. For
crankcase capacity, see “Capacities and Specifications” in the Index.
NOTICE:
Don’t add too much oil. If your engine has so much oil that the
oil level gets above the proper operating range, your engine
could be damaged.
6-21
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Crankcase Capacity
ENGINE
5.7L
6.5L
6.5L
7.4L
VIN
K
S
F
N
QUANTITY WITH
FILTER?
5 Quarts (4.8 Liters)
7 Quarts (6.5 Liters)
7 Quarts (6.5 Liters)
7 Quarts (6.5 Liters)
After refill, the level
MUST be checked as outlined under “Engine Oil And
Filter Recommendations”
in Section 5.
All quantities are approximate.
?Oil filter should be changed at EVERY oil change.
Fuel Tank Capacity
TYPE
Gasoline/Diesel
Utility Models - Standard
Suburban
- Standard
QUANTITY
30 Gallons ( I 1 3 Liters)
42 Gallons
( I59 Liters)
All quantities are for a completely dry tank and are approximate.
Service Replacement Part and Filter
Recommendations
- Gasoline Engines
Engine
VIN
Oil Filter
Air Cleaner Filter
PCV Valve
Spark Plugs”
Fuel Filter
Radiator Cap
5.7L
K
PF1218T A348C
cv774c
CR43TS
GF48 1
RC36
?Four Wheel Drive Vehicle
- use a PF52 oil filter
*Use AC copper-cored resistor type spark plugs
7.4L
N
PF1218
A348C
cv774c
.CR43TS GF48
1
RC36
ProCarManuals.com
Service Replacement Part and Filter Recommendations
- Diesel Engines
Engine
VIN
Oil Filter
Air Cleaner
Fuel Filter
Surge Tank
Cap
6SL
S
PF1218
A1236C
TP 1006
RC33
6.5L
F
PF1218
A 1236C
TP 1 006
RC33
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. For additional information, see
your “Warranty and Owner Assistance Information’’ booklet.
NOTICE:
R-134A refrigerant is not compatible with R-12 refrigerant in
an air conditioning system. R-12 in an R-134A system will cause
compressor failure, refrigerant oil sludge, or poor air
conditioning system performance.
Air Conditioning Refrigerant Capacity
TYPE
Refrigerant R-134A
Refrigerant
R- 134A
QTY
Front A/C 3.0 lbs. (1.360 kg)
Front and Rear A/C 4.25 Ibs. (1.927
kg)
6-79
ProCarManuals.com
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
ProCarManuals.com
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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