oil change GMC SIERRA 1994 User Guide

Explanation Of Scheduled Mainienance Services
Below are explanations of the services listed in the maintenance charts.
The proper fluids and lubricants to use are listed in this section. Make sure
whoever services your vehicle uses these. All parts should be replaced and
all necessary repairs done before you or anyone else drives the vehicle.
1. ENGINE OIL AND OIL FILTER CHANGE“‘ - ALWAYS USE
SJ3 ENERGY CONSERVING I1 (GASOLINE ENGINE) OR CF-4/SH
(DIESEL ENGINE) QUALITY OILS
OF THE PROPER VISCOSITY.
To determine the preferred viscosity oil for your vehicle’s engine (e.g.
SAE 5W-30 or 10W-30), see “Engine Oil”
in the Index.
2. CHASSIS LUBRICATION - Lubricate the front suspension, king
pin bushings, steering linkage, transmission, and transfer case shift
linkage, parking brake cable guides, rear driveline center splines and
front axle propshaft splines, brake pedal springs, and clutch pedal
springs at the intervals specified.
If you have a 3500
HD, lubricate the king pins and king pin bushings,
every
1,500 miles (2500 km) for Maintenance Schedule I, or every
3,000 (5000 km) for Maintenance Schedule 11.
Ball joints and king pin bushings should not be lubricated unless their
temperature
is 10” F (-12”C), or higher. When the weather is cold, let
them warm up before lubrication or
they could be damaged.
Also, be sure
to check all the vehicle fluid levels at this time.
3.
CLUTCH FORK BALL STUD LUBRICATION (5-SPEED
MANUAL TRANSMISSION WITH DEEP LOW
) - Lubricate the
clutch fork ball stud through the fitting
on the clutch housing.
Lubricant must be added “sparingly” to
the fitting, as only .0066 lb.
(.003 kg) is required to lubricate the ball stud surface. Do not add
lubricant more often than the intervals
in the Maintenance Charts. Too
much lubricant will damage the clutch assembly.
4. COOLING SYSTEM SERVICE”’? - Drain, flush and refill system
with new coolant. See “Engine Coolant” in the Index for
the proper
coolant and mixture to use
in your vehicle.
Also inspect the hoses and replace them
if they are cracked, swollen, or
deteriorated. Tighten all hose clamps (except constant tension clamps).
Remove debris and clean the outside of the radiator and air
conditioning condenser. Wash the radiator neck.
To ensure proper
operation, pressure test.
the radiator and cap.
* An Emission Control Service
?A fluid
loss in these systems may indicate a problem. Have them
inspected and repaired at once.
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24. DRIVE AXLE SERVICE? - Check readfront axle fluid level and
add
as needed. Check constant velocity joints and axle seals for
leaking.
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0
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Locking differential - Drain fluid at first oil change and refill.
Check fluid level and add
as needed at subsequent oil changes. In
dusty areas, or trailer towing applications drain fluid at every
15,000 miles (24 135 kilometers) and refill.
Standard differential - Check fluid level and add as needed at
every
oil change. In dusty areas, or trailer towing applications,
drain fluid every
15,000 miles (24 I35 kilometers) and refill.
More frequent lubrication may be required on heavy-duty or
off-road use.
3500 HD Models - 3500 HD Models with applications requiring
extreme overload/trdiler tow conditions
and high speed conditions
(above 45 mph (72
kdh)) for extended periods of time must
change drive axle fluid every
3,000 miles (4828 kilometers) or 3
months, whichever comes first, OR must use 75W-140 synthetic
fluid meeting
GM specifications. See “Recommended Fluids and
Lubricants” at the end of this section for the proper fluid to use.
25.
BRAKE SYSTEM INSPECTION-f - When the engine oil is
changed, inspect the lines and hoses for proper hookup, binding, leaks,
cracks, chafing, etc. Check the parking brake adjust, and the fluid level
in the master cylinder. A low fluid level can indicate worn disc brake
pads which may need
to be serviced.
When the wheels are removed for rotation, inspect disc brake pads for
wear and rotors for surfxe condition. Also inspect drum brake linings
for wear and cracks. Inspect other brake parts, including drums, wheel
cylinders, parking brake, etc., at the same time. Remove any
rust or dirt
from the wheel and mounting surfaces before mounting the wheel.
Inspect brakes more often if driving habits or conditions result in
frequent braking.
?A fluid loss in these systems may indicate a problem. Have them
inspected and repaired at once.
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Steering and Suspension Inspection? - Inspect front and rear suspension
and steering system for damaged, loose
or missing parts, signs of wear or
lack
of lubrication. Inspect power steering lines and hoses for proper
hook-up, binding, leaks, cracks, chafing, etc. Lubricate the steering linkage.
Accelerator Control System - On gasoline engines, lubricate the pivot at
the
TBI throttle lever stud with engine oil. Do not oil any accelerator or
cruise control cables. Replace any cables that have high effort
or excessive
wear.
Exhaust System Inspection - Inspect the complete system including the
three-way catalytic converter. Inspect the body near the exhaust system.
Look for broken, damaged, missing or out-of-position parts,
as well as,
open seams, holes, loose connections or other conditions which could cause
a heat buildup in
the floor pan or could let exhaust fumes seep into the
passenger compartments.
Drive Axle Service? - Check readfront axle fluid level and add as needed.
Check constant velocity joints and axle seals for leaking.
I-- ~ lsfer Case (Four-wheel Drive) Inspection? - Every 12 months or at
oil change intervals, check front axle and transfer case and add lubricant
when necessary. Oil the control lever pivot point and all exposed control
linkage. Check vent hose at transfer case for kinks and proper installation.
More frequent lubrication may be required
on heavy-duty or off-road use.
?'A fluid loss in these systems may indicate a problem. Have them inspected
and repaired at once.
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M
Maintenance OtherItems
.................................................. 6-49
Periodic Inspections
........................................... 7-24
Record
...................................................... 7-27
Scheduled Maintenance
.................................... 7.3. 7.18
When Towing
a Trailer ......................................... 4-44
Convexoutside ............................................... 2-55
Electric Outside
............................................... 2-54
Inside
....................................................... 2-54
Outside
..................................................... 2-54
Vanity
...................................................... 2-56
ModelReference
.................................................. 111
Underbody .................................................. 6-87
Master Cylinder (See “Brakes”) Mirrors
........................................................ 2-54
...
0
Odometer ...................................................... 2-68
Off-Road Driving (See “Driving”)
Off-RoadRecovery
.............................................. 4-10
Oil (Except Diesel) ............................................... 6-17
Additives
.................................................... 6-23
DisposalofUsed
.............................................. 6-28
Pressure Gage
................................................ 2-80
To(3lheck
.................................................... 6-18
WhatKindtoUse
............................................. 6-19
WhentoAdd
................................................. 6-18
Whentochange
.............................................. 6-28
Oil(Diese1)
..................................................... 6-24
Additives
.................................................... 6-28
DisposalofUsed
.............................................. 6-28
ToCheck
.................................................... 6-25
WhatKindtoUse
............................................. 6-26
WhentoAdd
................................................. 6-28
Whentochange
.............................................. 6-28
Owner Checks and Services ........................................ 7-22
Parking OnHills
..................................................... 4-43
Over Things That
Burn ......................................... 2-32
Torque Lock (Automatic Transmission)
............................ 2-29
Your Vehicle (Manual Transmission)
.............................. 2-32
Passing Other Vehicles
....................................... 4-10. 4-60
Periodic Maintenance Inspections
................................... 7-24
ParkingBrake
................................................... 2-28
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