1997 CHEVROLET EXPRESS service interval

Downloaded from www.Manualslib.com manuals search engine Tire Inspection and Rotation
Tires should be rotated every 6,000 to 8,000 miles
(10 000 to 13 000 km). Any time you notice unusual
wear, rotate your tires as soon as possible and check
wheel alignment. Also check for damaged tires or
wheels. See “When It’s Time for New Tires” and
“Wheel Replacement” later in
this section for more
information. If your vehicle has dual rear wheels, also
see “Dual Tire Operation” later in this section.
The purpose of regular rotation is to achieve more
uniform wear for
all tires on the vehicle. The first
rotation is the most important. See “Scheduled
Maintenance Services’’
in the Index for scheduled
rotation intervals.
I FRT FRT
If your vehicle has single rear wheels, always use one of
the correct rotation patterns shown here when rotating
your tires.
If your vehicle has dual rear wheels, always use one
of
the correct rotation patterns shown here when rotating
your tires.
When you install dual wheels, be sure the vent holes in
the inner and outer wheels on each side are lined
up.

Downloaded from www.Manualslib.com manuals search engine Section 7 Maintenance Schedule
This section covers the maintenance required for your vehicle. Your vehicle needs these services to retain its safety,
dependability and emission control performance.
7-2
7-4
7-5
7-5
7-6
Introduction
Part A: Scheduled Maintenance Services
Short Trip/City Definition
Short Trip/City Intervals
Long TripMighway Definition
7-7
7-45
7-49
7-5 1
7-53
Long Trip/Highway Intervals
Part
B: Owner Checks and Services
Part C: Periodic Maintenance Inspections
Part
D: Recommended Fluids and Lubricants
Part
E: Maintenance Record

Downloaded from www.Manualslib.com manuals search engine Maintenance Schedule
Short TripKity Definition -- Gasoline Engines
Follow the Short Trip/City Maintenance Schedule if any
one
of these conditions is true for your vehicle:
0 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).
0 Most trips are through dusty areas.
0 You frequently tow a trailer or use a carrier on top of
your vehicle.
or other commercial application.
0 If the vehicle is used for delivery service, police, taxi
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 soonel:
Short TripKity 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): Air Cleaner Filter
Inspection, if driving in dusty conditions. Shields and
Underhood Insulation Inspection (GVWR above
8,500 lbs. only). Front Wheel Bearing Repack (or at
each brake relining, whichever occurs first).
Every 30,000 Miles (50 000 km): Air Cleaner Filter
Replacement.
Fuel Filter Replacement.
Every 50,000 Miles (83 000 km): Automatic
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.

Downloaded from www.Manualslib.com manuals search engine Maintenance Schedule
I Short TripKity Intervals -- Gasom
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. Positive
Crankcase Ventilation (PCV) Valve Inspection.
Every 150,000 Miles (240 000 km): Cooling System
These intervals only summarize maintenance services.
Be sure to-follow the complete maintenance schedule on
the following pages.
Service (or every 60 months, whichever occurs first).
I
Follow this maintenance schedule only if none of the
conditions from
the Short Trip/City Maintenance
Schedule is true.
Do not use this schedule if the vehicle
is used
for trailer towing, driven in a dusty area or used
off paved roads. Use the Short Trip/City schedule for
these conditions.
Driving a vehicle with ~l$dly warmed engine under
highway conditions causes engine
oil to break
down slower:

Downloaded from www.Manualslib.com manuals search engine Maintenance Schedule
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. Air Cleaner Filter Replacement. Front
Wheel Bearing Repack (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).
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.
I Long Tripmighway Intervals -- Gasoline Engines 1
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. 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

Downloaded from www.Manualslib.com manuals search engine I Short TripKity Maintenance Schedule =- Gasoline Engines I
The services shown in this schedule up to 100,000 miles
(1 66 000 km) should be performed after 100,000 miles
(166
000 km) at the same intervals. The services shown
at 150,000 miles
(240 000 km) should be performed at
the same interval after 150,000 miles (240 000 km).
See “Owner Checks and Services” and “Periodic
Maintenance Inspections” following.
Footnotes
3- 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, kingpin bushings,
steering linkage and rear driveline center splines.
+ A good time to check your brakes is during tire
rotation. See “Brake System Inspection’’ under “Periodic
Maintenance Inspection’’ in Part
C of this schedule.
** Drive axle service (see “Recommended Fluids and
Lubricants’’
in the Index for proper lubricant to use):
0
0
0
Locking Differential -- Drain fluid and refill at first
engine
oil change. At subsequent oil changes, check
fluid level and add fluid as needed.
If driving in
dusty areas or towing a trailer, drain fluid and refill
every 15,000 miles (25
000 km).
Standard Differential
-- Check fluid level and add
fluid as needed at every oil change. If driving in
dusty areas or towing a trailer, drain fluid and refill
every
15,000 miles (25 000 km).
More frequent lubrication may be required for
heavy-duty use.

Downloaded from www.Manualslib.com manuals search engine Long Trip/Highway Maintenance Schedule -- Gasoline Engines I
The services shown in this schedule up to 100,000 miles
(166 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals. The services shown
at 150,000 miles
(240 000 km) should be performed at
the same interval after
150,000 miles (240 000 km).
See “Owner Checks and Services” and “Periodic
Maintenance Inspections” following.
Footnotes
ri‘ 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, kingpin bushings,
steering linkage and rear driveline center splines.
+ A good time to check your brakes is during tire
rotation. See “Brake System Inspection” under “Periodic
Maintenance Inspections”
in Part C of this schedule.
** Drive axle service (see “Recommended Fluids and
Lubricants”
in the Index for proper lubricant to use):
Locking Differential -- Drain fluid and refill at first
engine oil change. At subsequent
oil changes, check
fluid level and add fluid
as needed.
Standard Differential -- Check fluid level and add
fluid
as needed at every engine oil change.
7-32

Downloaded from www.Manualslib.com manuals search engine Part B: Owner Checks and Services
Listed below are owner checks and services which should be performed at the intervals specified to help
ensure the safety, dependability and emission control
performance of your vehicle.
Be sure
any necessary repairs are completed at once.
Whenever any fluids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
in Part D.
At the First 100, 1,000 and 6,000 Miles
(160,1600 and
10 000 km)
For vehicles with dual wheels, check dual wheel nut
torque. For proper torque, see “Wheel Nut Torque” in
the Index.
At Each Fuel Fill
It is important for you or a service station attendant to
pe$orm these underhood checks at each fuel
fill.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary.
See “Engine Oil” in the Index for
further details.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL@
coolant mixture if necessary. See “Engine Coolant” in the
Index for further details.
Windshield Washer Fluid Level Check
Check the windshield washer fluid level in the windshield washer tank and add the proper fluid
if
necessary. See “Windshield Washer Fluid” in the Index
for further details.
At Least Once a Month
Tire Inflation Check
Make sure tires are inflated to the correct pressures. See “Tires” in the Index for further details.
Cassette Deck Service
Clean cassette deck. Cleaning should be done every
50 hours of tape play. See “Audio Systems” in the Index
for further details.