Oil CHEVROLET SUBURBAN 1994 Service Manual

Service Replacement Part and Filter
Recommendations -Gas Engines
Engine
VIN
Oil Filter
Air Cleaner Filter
PCV Valve
Spark Plugs‘%
Fuel Filter
Radiator Cap
5.7L
K
PF353‘
A348C
cv774c
.CR43TS
GF48 1
RC36
$Four Wheel Drive Vehicle -use a
PFS 1 oil filter
*Use AC copper-cored resister type spark plugs
Service Replacement Part and Filter
Recommendations -Diesel Engines
Engine
VIN
Oil Filter
Air Cleaner
Fuel Filter
Surge Tank Cap 6.5L
S”
PF3S
A917C
TP
I 006
RC33
7.4L
N
PF35
A348C
cv774c
.CR43TS
GF48
I
RC36
6.5L
F”
PF35
A9 17C
TP
1006
RC33
*Heavy Duty Emission Engine
Air Conditioning Refrigerants
Not all air conditioning refrigerants are the same. If the air conditioning
system
in your vehicle needs refrigerant, be sure the proper refrigerant is
used. If you’re not sure, ask your GM dealer. For additional information, see
your “Warranty and Owner Assistance Information” booklet.
Air Conditioning Refrigerant Capacity
TYPE
Refrigerant R 134A
Refrigerant
R 134A
QTY
Front A/C 3.0 lbs. (1.360 kg)
Front and Rear A/C
4.25 Ibs. (I .927 kg)
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GASOLINE ENGINES WITH HEAVY DUTY EMISSIONS
- MAINTENANCE SCHEDULE yf
Item Miles (000) 3
No. Kilometers (000) 5 Service
I
1 Engine Oil Change*-Every 3 Months, or t
Oil Filter Change*-Every 3 Months, or t
12 Chassis Lubrication-Every 12 Months, or I+
II
3 Clutch Fork Ball Stud Lubrication (5-speed manual
transmission with deeplow only)
Cooling System Service*-Every 24 Months or
Air Cleaner Filter Replacement* Front Wheel Bearing Repack
Transmission Service
**
Fuel Filter Replacement*
10
11
12
13
14
15
16
17
18
I9
Spark Plugs Replacement*
Spark Plug Wire Inspection*
EGR System Inspection*
Electronic Vacuum Regulator Valve (EVRV)
Inspection*
Engine Timing Checkk
Fuel Tank, Cap and Lines Inspection
*
Thermostatically Controlled Air Cleaner
Inspectionk
Engine Accessory Drive (Serpentine) Belt
Inspection*
Evaporative Control System Inspection*
Shields and Underhood Insulation InspectionA.
20
21
-
23
24
-
Air Intake System InspectionA. I
Brake Systems Inspection** I
* An Emission Control Service
** See “Explanation of Scheduled Maintenance Services” in the Index.
A A Noise Emission Control Service
Applicable only to vehicles sold in the United States
t To determine the emissions classification of your engine, refer to “Selecting the Proper
Maintenance Chart” in this section.
TO404
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Explanation Of Scheduled Maintenance 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 SH
ENERGY CONSERVIJTG TI (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 low-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.
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 ) - Not
applicable to utility or wagon models.
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.
5. AIR CLEANER FILTER REPLACEMENT* - Replace at every
30,000 miles (50 000 km) or more often under dusty conditions. Ask
your dealer for the proper replacement intervals
for your driving
conditions.
6. FRONT WHEEL BEARING REPACK (2-WHEEL DRIVE
ONLY)
- Clean and repack the front wheel bearings at each brake
relining, or at the specified interval, whichever comes first.
4’ 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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2 I. THERMOSTATICALLY CONTROLLED ENGINE COOLING FAN INSPECTIONAI/
- (If so equipped.) Inspect all hoses and
ducts for proper hook-up. Be sure the valve works properly.
22. EXHAUST PRESSURE REGULATOR VALVE INSPECTION” -
Check that the valve works properly, Correct any binding. Inspect
hoses for cracks, chafing or decay. Replace parts as needed.
23. TIRE AND WHEEL ROTATION AND INSPECTION - For proper
wear and maximum tire life, rotate tires at the first 6,000 miles
(10 000
kilometers) for Schedule
I (+) or 7,500 miles (12 500 kilometers) for
Schedule
I1 (0) and then every 15,000 miles (25 000 kilometers)
thereafter. Follow the instructions and patterns shown
in Section 6.
Check tires for uneven wear or damage. If irregular or premature wear is
apparent, check wheel alignment. Also, check or damaged wheels. See
“Tires”
in the Index for more information.
For dual wheels, whenever the vehicle, wheels, or fasteners are new,
have the wheel fastener torque
set at the first 100, 1,000 and 6,000 miles
( 160, 1600 and 10 000 km).
Block the tires opposite
those being removed to keep the vehicle from
rolling.
24.
DRIVE AXLE SERVICE? - Check readfront axle fluid level and
add
as needed. Check constant velocity joints and axle seals for
leaking.
0 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 (24 135 kilometers) and refill.
0 More frequent lubrication may be required on heavy-duty or
off-road
use.
:i: An Emission Control Service
ANoise Emission Control Service
VApplicable
only to vehicles sold in the United States
+A fluid
loss in these systems may indicate a problem. Have them
inspected and repaired
at once.
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25. BRAKE SYSTEM INSPECTION? - 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 surface 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 resul\
t in
frequent braking.
Owner Checks and Services
Listed below are owner checks and services which should be made at the
time period specified to help ensure proper safety, emission performance,
and dependability 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 this Section.
At Least Once a Month
Tire inflation pressure check - Check the tires for proper inflation. If
they are low, inflate them to the level specified on the Certificatiomire
label or on the tire inflation charts. See “Loading Your Vehicle” or
“Inflation-Tire Pressure”
in the Index.
At Least Once a Year
Key lock cylinder lubrication - Lubricate key lock cylinders with engine
oil. See the “Recommended Fluid and Lubricants” chart
in this section.
Transmission neutral or clutch start switch operation -
?A fluid loss in these systems may indicate a problem. Have them inspected
and repaired at once.
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Lap and Shoulder Belts Condition and Operation - Inspect belt system,
including webbing, buckles, latch plates, retractors, guide loops\
and
anchors. Have
a belt assembly replaced if the webbing has been cut or
otherwise damaged.
Body Lubrication Service - Lubricate all body door hinges with engine
oil.
Also lubricate the tailgate, tailgate handle pivot points, and tailgate
mounted spare tire carrier (if equipped). Lubricate the body hood,
fuel door
and rear compartment hinges, latches and locks including interior glove box
and console doors, and any folding seat hardware. Lubricate the hood safety
lever pivot and prop rod pivot. More frequent lubrication may be required
when exposed to
a corrosive environment.
Periodic Maintenance Inspections - Listed below are inspections and
services which should be performed at least twice
a year (for instance each
spring or fall). You should let your
GM dealer’s service department or other
qualified service center do
these jobs. Make sure any necessary repairs are
completed at once.
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 tluid level and add as needed,
Check constant velocity joints and axle seals for leaking.
Transfer 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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Recommended FIuids & Lubricants
NOTE: Fluids and lubricants identified below by name, part number or
specification may
be obtained from your GM Dealer.
USAGE
Engine Oil - Gasoline
Engines
Engine Oil
- Diesel Engines
Engine Coolant Hydraulic Clutch System
Hydraulic Brake Systems Parking Brake Cables
Power Steering System Automatic Transmission
FLUIDLUBRICANT
API service SH or SG Energy
Conserving
I1 oils of the recommended
viscosity. The
“SH” designation may be
shown alone or
in combination with
others, such as “SH/CD,”
“SH, SG,
CD,”“SG/CD,” etc. To determine the
preferred viscosity for your vehicle’s
engine, see “Engine Oil”
in the Index.
API service CF4SH. The “CF4SH”
designation may be shown alone or
in
combination with others, such as
“CF-4/SG,” “CE/SH” or “CE/SG,” etc.
The designation may also be listed
in
reverse order, such as “SH/CF-4.” To
determine the preferred viscosity for
your vehicle’s engine, see “Engine Oil”
in the Index.
Mixture
of water and a good quality
ethylene glycol base antifreeze
conforming to “GM Specification
6038-M” (GM Part
No. 1052753), or
approved recycled coolant conforming to
“GM Specification 6038-M” with a
complete coolant flush and refill.
Hydraulic Clutch Fluid
(GM Part No.
12345347 or equivalent).
Delco Supreme
11 @ brake fluid (GM
Part
No. 1052535 or equivalent DOT-3
brake fluid).
Chassis Lubricant (GM Part
No.
12346003 or equivalent) or lubricant
meeting requirements of
NLGI Grade 2,
Category LB or GC-LB.
GM
Power Steering Fluid (GM Part
No. 10500 17 or equivalent) conforming
to “GM Specification
99850 10.”
DEXRON~ TTI or DEXRON~ IIE
Automatic Transmission Fluid.
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USAGE
Manual Transmission:
5-Speed
(RPO MG5)
Differential:
a. Standard (Saginaw) Front
and Rear Axle
b. Locking
Transfer Case
Gas Line
FLUIDLLUBRICANT
Synchromesh Transmission Fluid
(GM Part
No. I2345349 or equivalent).
a. Axle Lubricant (GM Part
No. 105227
I ) or SAE-80W-90
Gear Lubricant.
b. Axle Lubricant (GM Part
No.
1052271) or SAE-SOW-90 Gear
Lubricant.
DEXRON~ 111 or DEXRON~ IIE
Automatic Transmission Fluid.
Gas Line De-Icer (GM Part
No. 105 15 16
or equivalent).
Column Shift, Transfer Case,
Chassis Lubricant (GM Part
No.
Shift Lever, and Propeller
12346003 or equivalent) or lubricant
Shaft meeting requirements
of NLGI Grade 2,
Category LB or GC-LB.
Hood Latch Assembly
a. Pivots and spring anchor
b. Release Pawl
Front Wheel Bearings
Propeller Shaft
Spline/Universal Joint a.
Engine Oil (GM Part
No. 1050109 or
equivalent).
b. Chassis Lubricant (GM Part
No.
12346003 or equivalent) or lubricant
meeting requirements of NLGI Grade 2,
Category LB or GC-LB.
Wheel Bearing Lubricant (GM Part
No. 12346003 or equivalent) or lubricant
meeting requirements
of NLGI Grade 2,
Category GC
or GC-LB.
Chassis Lubricant (GM Part
No.
12346003 or equivalent) or lubricant
meeting requirements
of NLGI Grade 2,
Category LB or GC-LB.
Automatic Transmission Shift Engine
Oil (GM Part No. 1050109 or
Linkage, Floor Shift Linkage, equivalent).
Hood and
Door Hinges, Body
Door Hinge Pins, Tailgate
Hinge and Linkage, Folding
Seat, Fuel Door Hinge
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USAGE
Key Lock Cylinders
Chassis Lubrication
Windshield Washer Solvent
and Anti-Freeze
Weatherstrip Squeaks
Weatherstrip Conditioning
Outer Tailgate Handle Pivot
Points
FLUIDLUBRICANT
Engine Oil (GM Part No. 1050109 or
equivalent) or
a synthetic light weight
engine oil
(SAE 5W-30).
Chassis Lubricant
(GM Part No.
I2346003 or equivalent) or lubricant
meeting requirements
of NLGI Grade 2,
Category LB or GC-LB.
GM Optikleen washer solvent
(GM Part
No. 105 I5 15 or equivalent).
Spray-A-Squeek
(GM Part No.
1052277).
Dielectric Silicone Grease (GM Part
No. 12345579 or equivalent).
Multi-Purpose Lubricant
(GM Part
No. 12345 120 or equivalent).
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Service Station Checks
It is important for you or a service station attendant to perform these
under-hood checks at each
fuel fill.
Check the engine oil level and add if necessary.
Check the engine coolant level in the recovery bottle and add if
necessary.
Check the windshield washer fluid level and add if necessary.
See these items
in the Index for information on how to check them.
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