2002 GMC SONOMA engine oil

6-72
Replacement Bulbs*
Lamps Number
Halogen Headlamps,
Composite Low
-Beam9006 HB4 or
9006 LL
Halogen Headlamps,
Composite High
-Beam9005 HB3
Tail and Stoplamps 3057
Rear Sidemarker Lamps 194
Front Sidemarker Lamps 194NA
Front Turn Signal Lamps 3457A
Center High
-Mounted
Stoplamp211-2
*For replacement bulbs not listed here, please consult
your dealer.
Capacities and Specifications
Please refer to ªRecommended Fluids and Lubricantsº
in the index for more information. See refrigerant
change label under the hood for charge capacity
information and requirements.
Wheel Nut Torque100 lb
-ft (140 N´m) . . . . . . . . . .
Tire PressureSee the Certification/Tire label. . . . . . .
See ªLoading Your Vehicleº in the Index.
Cooling System
2.2L Engine 9.9 quarts (9.4 L). . . . . . . . . . . . . . . . .
4.3L Engine w/Auto. Trans. 13.8 quarts (13.1 L). .
4.3L Engine
w/Manual. Trans. 14.1 quarts (13.3 L). . . . . . . .
Engine Oil with Filter*
2.2L Engine 4.5 quarts (4.3 L). . . . . . . . . . . . . . . . .
4.3L Engine 4.5 quarts (4.3 L). . . . . . . . . . . . . . . . .
Fuel Capacity
Reg./Ext. Cab 18.5 U.S. Gallons (70.0 L). . . . . . . .
Crew Cab 17.8 U.S. Gallons (67.4 L). . . . . . . . . . . .

6-73
Automatic Transmission
Drain and Refill 5.0 quarts (4.7 L). . . . . . . . . . . . . .
Differential Fluid
Rear Axle 4.0 pints (1.9 L). . . . . . . . . . . . . . . . . . .
Front Axle 2.6 pints (1.2 L). . . . . . . . . . . . . . . . . . .
All capacities are approximate. After refill, the level
must be checked.
All capacities are approximate. When adding, be sure to
fill to the appropriate level or as recommended in this
manual. See ªRecommended Fluids and Lubricantsº in
the Index.
ªVORTECº 2200 L4 (VIN Code 5)
Engine Specifications
Type L4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Firing Order 1
-3-4-2 . . . . . . . . . . . . . . . . . . . . . . . . . .
Spark Plug Gap 0.040 inches (1.01 mm). . . . . . . . . .
ªVORTECº 4300 V6 (VIN Code W)
Engine Specifications
Type V6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Firing Order 1
-6-5-4-3-2 . . . . . . . . . . . . . . . . . . . . . .
Spark Plug Gap 0.060 inches (1.52 mm). . . . . . . . . .
Air Conditioning
Refrigerant Capacity
If you do your own service work, you'll need the proper
service manual. See ªDoing Your Own Service Workº in
the Index for additional information. It is recommended
that service work on your air conditioning system be
performed by a qualified technician.
Air Conditioning
Refrigerant R134a 1.8 lbs (.79 kg). . . . . . . . . . . .
Use Refrigerant Oil, R134a Systems

6-74
Normal Maintenance
Replacement Parts
Replacement part numbers listed in this section are
based on the latest information available at the time of
printing and are subject to change. If a part listed in this
manual is not the same as the part used in your vehicle
when it was built, or if you have any questions, please
contact your GM dealer.
ªVORTECº 2200 L4 (VIN Code 5)
Engine Specifications
Oil Filter *PF47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner Filter *A1163C. . . . . . . . . . . . . . . . . . . . .
PCV Valve N/A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Transmission Filter Kit **24200796. . . .
Spark Plugs *41
-948 . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Filter *GF481. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Wiper
Blades (Trico) 20 inches (51 cm). . . . . . . . . . . . . . .
*ACDelco

Part No.
**GM Part No.
ªVORTECº 4300 V6 (VIN Code W)
Engine Specifications
Oil Filter *PF47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner Filter *A1163C. . . . . . . . . . . . . . . . . . . . .
PCV Valve *CV769C. . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Transmission Filter Kit **24200796. . . .
Spark Plugs *41
-948 . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Filter *GF481. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Wiper
Blades (Trico) Trico 20 inches (51 cm). . . . . . . . . .
*ACDelco

Part No.
**GM Part No.

Scheduled Maintenance
7-5
Short Trip/City Definition
Follow the Short Trip/City Scheduled Maintenance if
any one of these conditions is true for your vehicle:

Most trips are less than 5 miles (8 km). This is
particularly important when outside temperatures
are below freezing.

Most trips include extensive idling (such as frequent
driving in stop
-and-go traffic).

Your vehicle has the 2200 L4 (Code 5) flexible
fuel engine and you have used ethanol fuel
(85% Ethanol/E
-85).

You frequently tow a trailer.

If the vehicle is used for delivery service, police, taxi
or other commercial application.
One of the reasons you should follow this schedule
if you operate your vehicle under any of these conditions
is that these conditions cause engine oil to break
down sooner.
Short Trip/City Intervals
Every 3,000 Miles (5 000 km): Engine Oil and Filter
Change (or 3 months, whichever occurs first). Chassis
Lubrication (or 3 months, whichever occurs first).
Drive Axle Service.
Every 6,000 Miles (10 000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Engine Air Cleaner
Filter Inspection, if driving in dusty conditions. Front
Wheel Bearing Repack (2WD only) (or at each brake
relining, whichever occurs first). Automatic
Transmission Service (severe conditions only).
Every 30,000 Miles (50 000 km): Engine Air
Cleaner Filter Replacement. Fuel Filter Replacement
(4.3L V6 engine only).
Every 50,000 Miles (83 000 km): Automatic
Transmission Service (normal conditions).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection.
(Continued)

Scheduled Maintenance
7-6
Short Trip/City Intervals
Every 90,000 Miles (150 000 km): Fuel Filter
Replacement (2200 L4 engine only).
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. 4.3L V6 Engine
Only: Positive Crankcase Ventilation (PCV) Valve
Inspection.
Every 150,000 Miles (240 000 km): Cooling System
Service (or every 60 months, whichever occurs first).
These intervals only summarize maintenance services.
Be sure to follow the complete scheduled maintenance
on the following pages.
Long Trip/Highway Definition
Follow this scheduled maintenance only if none of the
conditions from the Short Trip/City Scheduled
Maintenance are true. Do not use this schedule if the
vehicle is used for trailer towing, driven in a dusty area
or used off paved roads. Do not use this schedule if you
have the 2200 L4 (Code 5) flexible fuel engine and you
have used ethanol fuel (85% Ethanol/E
-85). Use the
Short Trip/City schedule for these conditions.
Driving a vehicle with a fully warmed engine under
highway conditions will cause engine oil to break
down slower.

Scheduled Maintenance
7-7
Long Trip/Highway Intervals
Every 7,500 Miles (12 500 km): Engine Oil and Filter
Change (or every 12 months, whichever occurs first).
Chassis Lubrication (or every 12 months, whichever
occurs first). Drive Axle Service. Tire Rotation.
Every 15,000 Miles (25 000 km): Automatic
Transmission Service (severe conditions only).
Every 30,000 Miles (50 000 km): Fuel Filter
Replacement (4.3L V6 engine only). Engine Air
Cleaner Filter Replacement. Front Wheel Bearing
Repack (2WD only) (or at each brake relining,
whichever occurs first).
Every 50,000 Miles (83 000 km): Automatic
Transmission Service (normal conditions).
Long Trip/Highway Intervals
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection.
Every 90,000 Miles (150 000 km): Fuel Filter
Replacement (2200 L4 engine only).
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. 4.3L V6 Engine
Only: Positive Crankcase Ventilation (PCV) Valve
Inspection.
Every 150,000 Miles (240 000 km): Cooling System
Service (or every 60 months, whichever occurs first).
These intervals only summarize maintenance services.
Be sure to follow the complete scheduled maintenance
on the following pages.

Short Trip/City Scheduled Maintenance
7-8
The services shown in this schedule up to 100,000 miles
(166 000 km) should be repeated after 100,000 miles
(166 000 km) at the same intervals for the life of
this vehicle. The services shown at 150,000 miles
(240 000 km) should be repeated at the same interval
after 150,000 miles (240 000 km) for the life of
this vehicle.
See ªOwner Checks and Servicesº and ªPeriodic
Maintenance Inspectionsº 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, ball joints, steering
linkage, parking brake cable guides, propshaft splines,
universal joints and brake pedal springs.
+ A good time to check your brakes is during tire
rotation. See ªBrake System Inspectionº under
ªPeriodic Maintenance Inspectionsº in Part C of
this schedule.
** Drive axle service. See ªRecommended Fluids and
Lubricantsº in the Index for proper lubricant to use:

Check fluid level and add fluid as needed. If driving
in dusty areas or when towing a trailer, drain fluid
and refill every 15,000 miles (25 000 km).

If your vehicle has a locking differential, drain fluid
and refill at first engine oil change.

More frequent lubrication may be required for
heavy
-duty or off-road use.

Short Trip/City Scheduled Maintenance
7-9
3,000 Miles (5 000 km)

Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.

Lubricate chassis components (or every 3 months, whichever occurs first).
(See footnote #.)

Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote **.)
6,000 Miles (10 000 km)

Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.

Lubricate chassis components (or every 3 months, whichever occurs first).
(See footnote #.)

Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote **.)

Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE