2003 GMC ENVOY air filter

Service............................................................5-3
Doing Your Own Service Work.........................5-3
Adding Equipment to the Outside of Your
Vehicle......................................................5-4
Fuel................................................................5-4
Gasoline Octane............................................5-4
Gasoline Speci®cations....................................5-5
California Fuel...............................................5-5
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling Your Tank............................................5-7
Filling a Portable Fuel Container.......................5-9
Checking Things Under the Hood....................5-10
Hood Release..............................................5-10
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-15
Engine Air Cleaner/Filter................................5-20
Automatic Transmission Fluid.........................5-21
Engine Coolant.............................................5-24
Radiator Pressure Cap..................................5-26
Engine Overheating.......................................5-27
Cooling System............................................5-29
Engine Fan Noise.........................................5-35
Power Steering Fluid.....................................5-36
Windshield Washer Fluid................................5-37Brakes........................................................5-38
Battery........................................................5-41
Jump Starting...............................................5-42
Rear Axle.......................................................5-48
Four-Wheel Drive............................................5-48
Bulb Replacement..........................................5-50
Halogen Bulbs..............................................5-50
Headlamps..................................................5-50
Front Turn Signal and Sidemarker Lamps........5-51
Taillamps and Turn Signal Lamps...................5-51
Replacement Bulbs.......................................5-52
Windshield Wiper Blade Replacement..............5-52
Tires..............................................................5-54
In¯ation -- Tire Pressure................................5-55
Tire Inspection and Rotation...........................5-55
When It Is Time for New Tires.......................5-57
Buying New Tires.........................................5-58
Uniform Tire Quality Grading..........................5-59
Wheel Alignment and Tire Balance..................5-60
Wheel Replacement......................................5-60
Tire Chains..................................................5-62
Accessory In¯ator.........................................5-62
If a Tire Goes Flat........................................5-64
Changing a Flat Tire.....................................5-64
Section 5 Service and Appearance Care
5-1

A. Coolant Recovery Tank. SeeEngine Coolant on
page 5-24.
B. Engine Air Cleaner/Filter. See
Engine Air
Cleaner/Filter on page 5-20.
C. Windshield Washer Fluid Reservoir. See
Windshield
Washer Fluid on page 5-37.
D. Power Steering Fluid Reservoir. See
Power Steering
Fluid on page 5-36.
E. Automatic Transmission Dipstick. See
Automatic
Transmission Fluid on page 5-21.
F. Engine Oil Dipstick. See
Engine Oil on page 5-15.G. Radiator Pressure Cap. See
Radiator Pressure Cap
on page 5-26.
H. Engine Oil Fill Cap. See
Engine Oil on page 5-15.
I. Remote Negative (-) Terminal Marked GND.
See
Jump Starting on page 5-42.
J. Brake Master Cylinder. See
Brakes on page 5-38.
K. Battery. See
Battery on page 5-41.
L. Engine Compartment Fuse Block. See ªEngine
Compartment Fuse Blockº under
Fuses and Circuit
Breakers on page 5-90.
5-13

A. Coolant Recovery Tank. SeeEngine Coolant on
page 5-24.
B. Engine Air Cleaner/Filter. See
Engine Air
Cleaner/Filter on page 5-20.
C. Windshield Washer Fluid Reservoir. See
Windshield
Washer Fluid on page 5-37.
D. Engine Oil Dipstick. See
Engine Oil on page 5-15.
E. Automatic Transmission Dipstick. See
Automatic
Transmission Fluid on page 5-21.
F. Engine Oil Fill Cap. See
Engine Oil on page 5-15.
G. Radiator Pressure Cap. See
Radiator Pressure Cap
on page 5-26.
H. Remote Negative (-) Terminal Marked GND. See
Jump Starting on page 5-42.
I. Power Steering Fluid Reservoir. See
Power Steering
Fluid on page 5-36.
J. Brake Master Cylinder. See
Brakes on page 5-38.
K. Engine Compartment Fuse Block. See ªEngine
Compartment Fuse blockº under
Fuses and Circuit
Breakers on page 5-90.
L. Battery. See
Battery on page 5-41.
Engine Oil
You should check your engine oil level regularly; this is
an added reminder.
Checking Engine Oil
It's a good idea to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil
must be warm and the vehicle must be on level ground.
The engine oil dipstick
handle is a yellow ring
located in the engine
compartment toward the
passenger's side of
the vehicle. See
Engine
Compartment Overview on
page 5-12
for more
information on location.
Turn off the engine and give the oil several minutes to
drain back into the oil pan. If you don't, the oil
dipstick might not show the actual level.
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, and check the level.
5-15

Engine Air Cleaner/Filter
SeeEngine Compartment Overview on page 5-12for
location of engine air cleaner/®lter and change indicator
(if equipped).
When to Inspect
If your vehicle is equipped with a ®lter change indicator
it will let you know when the ®lter needs to be
replaced. Inspect the air cleaner/®lter every 15,000
miles (25 000 km) and replace the ®lter if necessary.
Vehicles without a change indicator inspect the air
cleaner/®lter every 15,000 miles (25 000 km) and
replace the ®lter every 30,000 miles (50 000 km). If you
are driving in dusty/dirty conditions, inspect the ®lter
or change indicator at each engine oil change.
How to Inspect
Locate the ®lter change indicator. When the change
indicator turns black, or is in the red/orange ªchangeº
zone, replace the ®lter and reset the indicator. To
inspect the air cleaner/®lter, remove the ®lter from the
vehicle and lightly shake ®lter to release loose dust and
dirt. If the ®lter remains ªcakedº with dirt, a new ®lter
is required.
5-20

Capacities and Speci®cations
Capacities and Speci®cations
Engine VIN Code Transmission Spark Plug Gap Firing Order
ªVORTECŸ º 4200 L6 S M300.042 inches
(1.07 mm)1±5-3±6±2±4
ªVORTECŸ º 5300 V8 P M300.060 inches
(1.52 mm)1±8±7±2±6±5±4±3
ApplicationL6 Engine V8 Engine
English Metric English Metric
Wheel Nut Torque 100 lb ft 140Y100 lb ft 140Y
Cooling System
Envoy 13.9 quarts 13.1 L Ð Ð
Envoy XL 15.2 quarts 14.4 L 17.9 quarts 17.0 L
Air Conditioning Refrigerant R/134a
Envoy 1.9 lbs. 0.9 kg Ð Ð
Envoy XL 2.8 lbs. 1.27 kg 2.8 lbs. 1.27 kg
Engine Oil with Filter 7.0 quarts 6.6 L 6.0 quarts 5.7 L
5-102

Normal Maintenance Replacement Parts
Part Number
Engine Oil Filter
L6PF61*
V8PF44*
Engine Air CleanerA2014C*
Automatic Transmission Filter Kit GM Part No. 24200796
Spark Plugs
L641-981*
V841±974*
Fuel FilterGF831*
Windshield Wiper Blade 20.0 inches (50.8 cm)
Backglass Wiper Blade 14.0 inches (35.6 cm)
*ACDelco
žpart number
5-104

If the system is ever reset accidentally, you must
change your oil at 3,000 miles (5 000 km) since your
last oil change. Remember to reset the oil life system
whenever the oil is changed. See
Engine Oil on
page 5-15for information on resetting the system.
An Emission Control Service.
See the mileage intervals following for additional
services that may be performed with an engine oil
change. After the services are performed, record the
date, odometer reading and who performed the service
on the maintenance record pages in Part E of this
schedule.
7,500 Miles (12 500 km)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
qRotate tires. See
Tire Inspection and Rotation on
page 5-55for proper rotation pattern and additional
information.(See footnote +.)
15,000 Miles (25 000 km)
qInspect engine air cleaner ®lter or change indicator (if
equipped). If necessary, replace the ®lter. If vehicle is
driven in dusty/dirty conditions, inspect ®lter or
change indicator (if equipped) at every engine oil
change. See
Engine Air Cleaner/Filter on page 5-20for more information.An Emission Control Service.
(See footnote ².)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
qRotate tires. See
Tire Inspection and Rotation on
page 5-55for proper rotation pattern and additional
information.(See footnote +.)
22,500 Miles (37 500 km)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
qRotate tires. See
Tire Inspection and Rotation on
page 5-55for proper rotation pattern and additional
information.(See footnote +.)
6-6

30,000 Miles (50 000 km)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
qRotate tires. See
Tire Inspection and Rotation on
page 5-55for proper rotation pattern and additional
information.(See footnote +.)
qReplace fuel ®lter.An Emission Control Service. (See
footnote ².)
qReplace engine air cleaner ®lter on vehicles without
a restriction indicator. If equipped with a change
indicator, inspect the indicator. If necessary, replace
the ®lter. If vehicle is driven in dusty/dirty conditions,
inspect the change indicator (if equipped) at every
engine oil change. See
Engine Air Cleaner/Filter on
page 5-20for more information.An Emission
Control Service. (See footnote ².)
37,500 Miles (62 500 km)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
qRotate tires. See
Tire Inspection and Rotation on
page 5-55for proper rotation pattern and additional
information.(See footnote +.)
45,000 Miles (75 000 km)
qInspect engine air cleaner ®lter or change indicator (if
equipped). If necessary, replace the ®lter. If vehicle is
driven in dusty/dirty conditions, inspect ®lter or
change indicator (if equipped) at every engine oil
change. See
Engine Air Cleaner/Filter on page 5-20for more information.An Emission Control Service.
(See footnote ².)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
qRotate tires. See
Tire Inspection and Rotation on
page 5-55for proper rotation pattern and additional
information.(See footnote +.)
6-7