Downloaded from www.Manualslib.com manuals search engine Long Tripmighway Maintenance Schedule
0 Inspect engine accessory drive belts (or every 24 months, whichever
occurs
first). An Emission Control Service.
0 Drain, flush and refill cooling system (or every 30 months, whichever occurs
first).
See “Engine Coolant” in the Index for what to use. Inspect hoses. Clean
radiator, condenser, pressure cap and neck. Pressure test the c\
ooling system
and pressure cap.
An Emission Control Service. (See footnote?.)
0 Replace spark plugs.
An Emission Control Service.
17 Replace air cleaner filter.
An Emission Control Service.
0 Inspect fuel tank, cap and lines and any hoses for damage. Replace fuel tank
cap gasket.
An Emission Control Service. (See footnote “f)
0 Change manual transmission fluid.
0 Change transfer case fluid.
0 Change differential fluid.
0 Replace fuel filter (or every 30 months, whichever occurs first).
0 Inspect the locking front hubs (if equipped) for correct operation (or every
An Emission Control Service. (See footnote?.)
3 months, whichever occurs first). Repair or replace as necessary.
(Continued)
7-39
Downloaded from www.Manualslib.com manuals search engine 1 Long Tripmighway Maintenance Schedule
67,500 Miles (112 500 km)
0 Change engine oil and filter (or every 7.5 months, whichever occurs first).
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
0 Inspect the locking front hubs (if equipped) for correct operation (or every
An Emission Control Service.
rotation pattern and additional information. (See footnote +.)
3 months, whichever occurs first). Repair or replace if necessary.
75,000 Miles (125 000 km)
0 Change engine oil and filter (or every 7.5 months, whichever occurs first).
Change automatic transmission fluid and filter if the vehicle is mainly driven
An Emission Control Service.
under one or more of these conditions:
- In heavy city traffic where the outside temperature regularly reaches
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery service.
90 OF (32 O C) or higher.
If you do not use your vehicle under any of these conditions, change the fluid
and filter every
100,000 miles (I66 000 km).
(Continued)
Downloaded from www.Manualslib.com manuals search engine Long Tripmighway Maintenance Schedule
90,000 Miles (150 000 km)
Change engine oil and filter (or every 7.5 months, whichever occurs first).
An Emission Control Service.
For Two-Wheel-Drive vehicles only: Clean and repack the front wheel
bearings (or at each brake relining, whichever occurs first).
Inspect engine accessory drive belts (or every
24 months, whichever
occurs first).
An Emission Control Service.
occurs first).
0 Replace automatic transmission fluid hose (or every 45 months, whichever
0 Inspect camshaft timing belt.
Change automatic transmission fluid and filter if the vehicle is mainly driven
An Emission Control Service. (See footnote "f)
under one or more of these conditions:
- In heavy city traffic where the outside temperature regularly r\
eacnes
- In hilly or mountainous terrain.
90°F (32°C) or higher.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery service.
If you do not use your vehicle under any of these conditions, change the fluid
andfilter every
l00,OOO miles (166 000 km).
(Continued)
I DATE I
7-43
Downloaded from www.Manualslib.com manuals search engine Iway Maintenance Schedule I
90,000 Miles (150 000 km) (Continued)
0
0
0
Drain, flush and refill cooling system (or every 30 months, w\
hichever occurs
first). See “Engine Coolant” in the Index for what to use. Inspect hoses. Clean
radiator, condenser, pressure cap and neck. Pressure test the c\
ooling system and pressure cap.
An Emission Control Service. (See footnote?.)
Replace spark plugs.
An Emission Control Service.
Replace air cleaner filter.
An Emission Control Service.
Inspect fuel tank, cap and lines and any hoses for damage or leaks. Replace
fuel tank cap gasket.
An Emission Control Service. (See footnote ?.)
Change manual transmission fluid.
Change transfer case fluid.
Change differential fluid.
Replace fuel filter (or every 30 months, whichever occurs firs\
t).
An Emission Control Service. (See footnote?.)
Inspect the locking front hubs (if equipped) for correct operation (or every
3 months, whichever occurs first). Repair or replace if necessary.
7-44
Downloaded from www.Manualslib.com manuals search engine At Least Twice a Year
Restraint System Check
Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages are working properly. Look for any other loose or damaged
safety belt system parts. If you see anything that might
keep a safety belt system from doing its job, have it
repaired. Have any torn or frayed safety belts replaced.
Also look for any opened or broken air bag coverings,
and have them repaired or replaced. (The air bag system
does not need regular maintenance.)
Wiper Blade Check
Inspect wiper blades for wear or cracking. Replace blade
inserts that appear worn or damaged or that streak or
miss areas of the windshield. Also
see “Wiper Blades,
Cleaning” in the Index.
Fluid Level Check
Check the transfer case, axle differential(s) and
automatic
or manual transmission fluid levels and add
as needed. See “Transfer Case,” “Axle, Rear,” “Axle,
Front” and “Automatic Transmission” or “Manual
Transmission” in the Index. Check for leaks.
A fluid loss
in these systems could indicate a problem. Have the
system inspected and repaired at once.
Automatic Transmission Check
Check the transmission fluid level; add if needed. See
“Automatic Transmission” in the Index. A fluid
loss
may indicate a problem. Check the system and repair
if needed.
At Least Once a Year
Key Lock Cylinders Service
Lubricate the key lock cylinders with the lubricant specified in Part
D.
Body Lubrication Service
Lubricate all body door hinges. Also lubricate all
hinges and latches, including those for the hood, rear
compartment, glove box door, console door and any
folding seat hardware.
Part D tells you what to use.
More frequent lubrication may be required when
exposed to a corrosive environment.
7-48
Downloaded from www.Manualslib.com manuals search engine Starter Switch Check Brake-Transmission Shift Interlock (BTSI) Check
(Automatic Transmission)
’ A CAUTION: I
When you are doing this check, the vehicle could
move suddenly. If it does, you
or others could be
injured. Follow the
steps below.
1. Before you start, be sure you have enough room
around the vehicle.
2. Firmly apply both the parking brake (see “Parking
Brake” in the Index if necessary) and the regular brake.
NOTE:
Do not use the accelerator pedal, and be
ready to turn
off the engine immediately if it starts.
3. On automatic transmission vehicles, try to start the
engine
in each gear. The starter should work only in
PARK
(P) or NEUTRAL (N). If the starter works in
any other position, your vehicle needs service.
On manual transmission vehicles, put the shift
lever
in NEUTRAL (N), push the clutch down halfway
and try to start the engine. The starter should work
only when the clutch is pushed down all the way to
the floor.
If the starter works when the clutch isn’t
pushed all the way down, your vehicle needs service.
A CAUTION:
When you are doing this check, theqehicle could
I
move suddenly. If it does, you or others could be
injured. Follow the steps below.
I
1. Before you start, be sure you have enough room around the vehicle. It should be parked on a
level surface.
2. Firmly apply the parking brake (see “Parking Brake”
in the Index
if necessary).
NOTE: Be ready to apply the regular brake
immediately if the vehicle begins to move.
3. With the engine off, turn the key to the
ON position,
but don’t start the engine. Without applying the
regular brake, try to move the shift lever out of
PARK (P) with normal effort. If the shift lever
moves out of PARK (P), your vehicle’s BTSI
needs service.
7-49
-
Downloaded from www.Manualslib.com manuals search engine Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition key to
LOCK in each shift lever position.
With an automatic transmission, the key should turn
to LOCK only when the shift lever is in PARK (P).
0 With a manual transmission, the key should turn to
LOCK only if you push the key in farther, while
turning it towards LOCK.
On vehicles with a key release lever,
try to turn the key
to LOCK without pressing the lever. The key should
turn to
LOCK only when you press the key lever.
On all vehicles, the key should come out only in LOCK.
Parking Brake and Automatic Transmission
PARK (P) Mechanism Check
A C [TION:
I
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front
of your vehicle in case
it begins to roll.
Be ready to apply the regular
brake at once should the vehicle begin to move.
Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set
the parking brake.
0
0
To check the parking brake’s holding ability:
With the engine running and transmission in
NEUTRAL (N), slowly remove foot pressure
from the regular brake pedal.
Do this until the
vehicle is held by the parking brake only.
To check the PARK (P) mechanism’s holding ability:
With the engine running, shift to PARK
(P).
Then release all brakes. If your vehicle is
four-wheel drive, be sure the transfer case is
not in NEUTRAL
(N).
Underbody Flushing Service
At least every spring, use plain water to flush any
corrosive materials from the underbody. Take care
to clean thoroughly any areas where mud and other
debris can collect.
7-50
Downloaded from www.Manualslib.com manuals search engine Part D: Recommended Fluids
and Lubricants
NOTE: Fluids and lubricants identified below by name,
part number or specification may be obtained from
your dealer.
FLUIDLUBRICANT
Engine Oil with the American
Petroleum Institute Certified
For Gasoline Engines “Starburst” symbol of the
proper viscosity. To determine the preferred viscosity for your
vehicle’s engine, see “Engine
Oil” in the Index.
50/50 mixture of clean water
(preferably distilled) and good
quality Ethylene Glycol Base
Coolant (GM Part
No. 1052753
or equivalent) conforming to
GM Specification 1825M or
approved recycled coolant
conforming to GM
Specification 1825M. See
“Engine Coolant” in the Index.
USAGE
Hydraulic Brake
System
Parking Brake Cable
Guides
Power Steering System
Manual
Transmission (All) and Transfer Case
(Four-Wheel-Drive)
Automatic
Transmission
~
Key Lock Cylinders
FLUIDLUBRICANT
Delco Supreme 11@ Brake
Fluid (GM Part No. 12377967
or equivalent DOT-3 Brake
Fluid).
Chassis Lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements
of NLGI
# 2, Category LB
or GC-LB.
DEXRON@-I11 Automatic
Transmission Fluid.
GM Goodwrench Synthetic
Manual Transmission Gear Oil
quart) or equivalent SAE
75W-90
GL-4 Gear Oil.
DEXRON@-I11 Automatic
Transmission Fluid.
Multi-Pu ose Lubricant,
Superlube
% (GM Part
No. 12346241 or equivalent).
(GM Part
NO. 12346190 - 1