Page 368 of 452

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 truck dealer.
These specifications are for information only.
If you have any questions, see the service manual for the chassis or
refer
to the body manufacturer's publications.
VIN Code
Oil Filter';"
Air Cleaner Filter*
PCV Valve*
Spark Plugs*
Fuel Filter*
Wiper Blades**
Wiper Blade Type
Wiper Blade Length
w M
PF52 PF12 18.1
A 1300C??
A 1300C??
CV746C CV796C
4 1-932 4 1-932
GF626 GF626
22154886 22 154886
Trico Trico
18 inches (45.0 cm) 18 inches
(45.0 cm)
"AC part number
**GM part number
?Use
a PF52 oil filter if your vehicle has four-wheel drive.
??A1301C high-capacity air cleaner filter.
R J
PF1218? PF1218
A 1300C?? A 1300C??
CV796C cv774c
4 1-932 4 1-932
GF626 GF626
22 154886 22154886
Trico Trico
18 inches (45.0 cm) I8
inches (45.0 cm)
6-78
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Page 375 of 452

Maintenance Schedule
Short Trip/City Definition -- Gasoline Engines
Follow the Short Trip/City Maintenance Schedule if any
one of these conditions is true for your vehicle:
Most trips are less than 5 to 10 miles (8 to I6 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).
You operate your vehicle in dusty areas or
off-road frequently.
You frequently tow a trailer.
If the vehicle is used for delivery service, police, taxi
or other commercial application.
One oj*tlw reclsorzs yo14 sl~or.~ld~foIlo~~~ this scI~edniv if
you operate yo1.w vehicle urlcler CIIZJ ojthese cor-zditions
is that these cwm1ition.s CCJLIS~ eqirw oil to break
dOC1!12 Sool-zel:
Short Trip/City Intervals -- Gasoline Engines
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 (or 3 months, whichever
occurs first).
Every 6,000 Miles (10 000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Shields and
Underhood Insulation Inspection (GVWR above
8,500 lbs. only). Front Wheel Bearing Repack
(2WD only) (or at each brake relining, whichever
occurs first).
Every 30,000 Miles (50 000 km): Fuel Filter
Every 50,000 Miles (83 000 km): Automatic
Replacement.
Transmission Service (vehicles over
8600 GVWR or
driven under severe conditions only).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection. Fuel Tank, Cap and Lines
Inspection. Exhaust Gas Recirculation System
Inspection. Evaporative Control System Inspection.
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Page 377 of 452

Maintenance Schedule
Long TriplHighway Intervals -- Gasoline Engines
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): Shields and
Underhood Insulation Inspection (GVWR above
8,500 lbs. only).
Every 30,000 Miles (50 000 km): Fuel 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 (vehicles over
8600 GVWR
or driven under severe conditions only).
I Long; TripMighway Intervals -- Gasoline Engines I
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection. Fuel Tank, Cap and Lines
Inspection. Exhaust Gas Recirculation System
Inspection. Evaporative Control System Inspection.
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. Automatic
Transmission Service (normal conditions). 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 maintenance schedule on
the following pages.
7-7
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Page 382 of 452

I Short Trip/City Maintenance Schedule -- Gasoline Engines I
15,000 Miles (25 000 km) (Continued)
0 Check rear/front axle fluid level and add fluid as needed. Check constant
0 For Two-Wheel-Drive vehicles only: Clean and repack the front wheel
0 Vehicles With GVWR Above 8,500 lbs. Only: Inspect shields and underhood
velocity
joints and axle seals for leaking. (See footnote
**.)
bearings (or at each brake relining, whichever occurs first).
insulation for darnage or looseness. Adjust or replace as required.
This is cl Noise Emission Cmztrol Service. Applicable ody fo vei~icles
sold in the United States.
18,000 Miles (30 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs first).
0 Lubricate chassis components (or every 3 months, whichever occurs first).
0 Check rear/front axle fluid level and add fluid as needed. Check constant
0 Rotate tires. See “Tire Inspection and Rotation’? in the Index for proper
An Emissiorl Control Service.
(See footnote #.)
velocity joints and axle seals for leaking. (See footnote ‘i”i’.)
rotation pattern and additional information. (See footnote +.)
21,000 Miles (35 000 km)
I DATE I
MILEAGE
DATE
0 Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Cmtrol Service. MI1,EAGE SERVICED BY
7-12
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Page 384 of 452

I Short TripKity Maintenance Schedule -- Gasoline Engines I
30,000 Miles (50 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.
0 Lubricate chassis components (or every 3 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid as needed. Check constant
0 For Two-Wheel-Drive vehicles only: Clean and repack the front wheel
0 Replace fuel filter.
0 Vehicles With GVWR Above 8,500 lbs. Only: Inspect shields and underhood
(See
footnote
#.)
velocity joints and axle seals for leaking. (See footnote *‘$.)
bearings (or at each brake relining, whichever occurs first).
An Emission Control Service. (See footnote?.)
insulation for damage
or looseness. Adjust or replace as required.
This is a Noise Emission Control Service. Applicable only to vehicles
sold in the United States.
0 Rotate tires. See “Tire Inspection and Rotation’’ in the Index for proper
rotation pattern and additional information. (See footnote
+.)
33,000 Miles (55 000 km)
Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.
ITE
MILEAGE SERVICED BY:
MILEAGE SERVICED BY
7-14
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Page 386 of 452

I Short TripKity Maintenance Schedule -- Gasoline Engines I
42,000 Miles (70 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs first).
0 Lubricate chassis components (or every 3 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid as needed. Check constant
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
An Emission Control Service.
(See footnote #.)
velocity joints and axle seals for leaking. (See footnote *‘i’.)
rotation pattern and additional information. (See footnote +.)
DATE I
I DATE I
MILEAGE I SERVICED BY
45,000 Miles (75 000 km)
Change engine oil and filter (or every 3 months, whichever occurs first).
0 Lubricate chassis components (or every 3 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid as needed. Check constant
0 For Two-Wheel-Drive vehicles only: Clean and repack the front wheel
0 Vehicles With GVWR Above 8,500 lbs. Only: Inspect shields and underhood
An Emission Control Service.
(See footnote #.)
velocity joints and axle seals for leaking. (See footnote **.)
bearings (or at each brake relining, whichever occurs first).
insulation for damage or looseness. Adsjust or replace
as required.
This is cr Noise Emission Corztr-ol Service. Applictrhle only to vehicles
sold in the United States.
7-16
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Page 389 of 452

I Short Trip/City Maintenance Schedule -- Gasoline Engines I
Lubricate chassis components (or every 3 monms, whichever occurs first).
0 Check readfront axle fluid level and add fluid as needed. Check constant
(See
footnote
#.)
velocity joints and axle seals for leaking. (See footnote **.)
60,000 Miles (100 000 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).
0 Check readfront axle fluid level and add fluid as needed. Check constant
For Two-Wheel-Drive vehicles only: Clean and repack the front wheel
Vehicles With GVWR Above 8,500 lbs. Only: Inspect shields and underhood
(See footnote
#.)
velocity
joints and axle seals for leaking. (See footnote **.)
bearings (or at each brake relining, whichever occurs first).
insulation for damage or looseness. Adjust or replace
as required.
This is a Noise Emission Control Service. Applicable only to vehicles
sold in the United States.
An Emission Control Service.
0 Inspect engine accessory drive belt.
DATE I
MILEAGE
(Continued)
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Page 392 of 452

Short Trip/City Maintenance Schedule -- Gasoline Engines
72,000 Miles (120 000 km) (Continued)
0 Check readfront axle fluid level and add fluid as needed. Check constant
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
velocity
joints and axle seals for leaking. (See footnote
**.)
rotation pattern and additional information. (See footnote +.)
75,000 Miles (125 000 km)
0
0
0
0
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
#.)
For Two-Wheel-Drive vehicles only: Clean and repack the front wheel
bearings (or at each brake relining, whichever occurs first).
Check readfront axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote
**.)
Vehicles With GVWR Above 8,500 lbs. Only: Inspect shields and underhood
insulation for damage or looseness. Adjust or replace as required.
This is a Noise Emission Control Senrice. Applicable only to vehiclus sold in
the United States.
78,000 Miles (130 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.
DATE
SERVICED
BY
I DATE I
7-22
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