1994 CHEVROLET SUBURBAN engine

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
7-26 ProCarManuals.com

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).
7-27 ProCarManuals.com

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.
7-29 ProCarManuals.com

' Secondary
Hood
Release
See Page 6-1 4.
ILL Battery
Your vehicle's
Delco Freedom
battery never
needs to have
water added.
See Page 6-49.

a Cooling System
Check and add
coolant
only at
the coolant recovery tank
(gasoline engine)
or
only at the
coolant surge
tank (diesel engine).
The fluid
level should be at
the
COLD mark.
See Page 6-35.

1 Transmission
~ Fluid
See Page 6-28.
Cold Tire
Pressure
See the
Certificationflire
label
on the
inside rear edge
of the driver's
door.
See Page 6-62.
7-30
ProCarManuals.com

C
Capacities and Specification
Charts
...................................................... 6-81
Carbon Monoxide
..................................... 2-3 1,4-33, 4-4 1
Cassette Tape Player (see “Audio Systems” )
Catalytic Converter .............................................. 6-58
CertificatiodTire Label
........................................... 6-59
Chemical Paint Spotting ........................................... 6-76
Child Restraints (See “Safety Belts”)
Cigarette LightedAshtrays
......................................... 2-55
Circuit Breakers (See “Fuses”)
Cleaning ChangingaFlatTire
.............................................. 5-25
Finishcare .................................................. 6-75
Glass ....................................................... 6-74
InsideofVehicle .............................................. 6-70
Instrument Panel, Top
.......................................... 6-73
Outside of Vehicle
............................................. 6-74
Special Problems
.............................................. 6-72
Vinyl or Leather
.............................................. 6-73
WheelsandTires
.............................................. 6-75
Windshield
.................................................. 6-74
Clock
.................................................... 3-16, 3-19
Comfort Controls ................................................. 3-2
Console Floor
....................................................... 2-57
Overhead
.................................................... 2-59
ConvenienceNet ................................................ 2-78
Coolant
(See “Engine”)
Cooling System Capacity
.......................................... 6-82
Crankcase Capacity
.............................................. 6-82
Cruise Control
.................................................. 2-42
Increasespeed
............................................... 2-44
OnHills
..................................................... 2-46
Passing
..................................................... 2-45
Reducespeed ................................................ 2-45
Resume ..................................................... 2-44
Set
......................................................... 2-43
ToGetOutOf
................................................ 246
Customer Assistance for
the Hearing or Speech Impaired ................. 8-3
Customer Satisfaction Procedure
..................................... 8-2
Daytime Running Lights (Canada Only)
.............................. 2-48
Indicator Lights
............................................... 2-66
DomeLights .................................................... 2-49
Doors .......................................................... 2-7
Locks
........................................................ 2-5
Panel
...................................................... 2-9
Across an Incline ............................................. 4-20
After Off-Road Driving
........................................ 4-23
Driving
AtNight
.................................................... 4-23
2 ProCarManuals.com

Driving (continued)
Braking
...................................................... 4-5
Control
of A Vehicle ............................................ 4-4
Defensive
.................................................... 4-2
Downhill
.................................................... 4-18
Guidelines
................................................... 4-11
Highway Hypnosis
............................................ 4-29
Hydroplaning
................................................ 4-26
In Blizzard ................................................... 4-33
InCity
...................................................... 4-26
InRain
...................................................... 4-24
In Sand, Mud, Ice, Or Snow ................................ 4-21, 5-40
InWater ..................................................... 4-22
LongDistance
................................................ 4-28
LossofControl
............................................... 4-10
Nightvision
................................................. 4-24
Off-Roading
................................................. 4-12
OnCurves
.................................................... 4-7
OnGrades
................................................... 4-42
On Hill and Mountain Roads .................................... 4-29
On Off-Road
Hills ............................................ 4-15
OnSnoworIce
............................................... 4-31
Passing
...................................................... 4-9
Skidding
.................................................... 4-11
Stuck in Deep
Snow ...................................... 4-33, 5-40
Throughwater .......................................... 2-15, 4-22
Uphill
...................................................... 4-16
Winter
...................................................... 4-30
WithaTrailer ................................................ 4-36
DrunkenDriving
................................................. 4-2
Freeway
..................................................... 4-27
E
Electrical System
Engine Add-on
Equipment
...........................................
Adding Coolant ..................................... 5-14,5-20.
Aircleaner
..................................................
Block Heater ........................................ 2-1 9,3-5,
Computer Command Control System
..............................
Coolant ...................
Coolant Temperature Gage ....
Cooling System .............
Crankcase .................
Exhaust ...................
Fan Noise .................
Identification ...............
Leaving Vehicle While Running
Oil (See “Oil”)
Overheating
................
Running While Parked .......
Starting ...................
Equipment. Add-on .........
Exhaust System .............
..................................
..................................
..................................
..................................
..................................
..................................
............................. 6-79,
..................................
..................................
..................................
............................. 2-13,
..................................
..................................
6-80
6-37
6-27
6-21
6-58
6-35
2-75
5-12
6-82
5-24 2-31
6-81
2-31
5-10
2-31
2-16
6-61
6-58
3 ProCarManuals.com

L
Lights ..................................................... 2-47
Brake System Warning ......................................... 2-67
Bulb Replacement
............................................. 6-86
Charging System Light
......................................... 2-70
Front Parking/Turn Signal
....................................... 6-52
CheckGagesLight
............................................ 2-71
Dome
....................................................... 2-49
Headlights (See “Headlights”)
Indicator
.................................................... 2-66
Operation
................................................... 2-37
Reading ..................................................... 2-49
Service Engine
Soon ...................................... 2-7 1. 6-59
Rear
........................................................ 6-55
Replacement Chart
............................................ 6-86
SideMarker .................................................. 6-53
Loading Your Vehicle ....................................... 4-12, 6-59
Add-on Equipment
........................................... 6-61
Accelerator Control System
..................................... 6-48
Constant Velocity Joints
........................................ 6-48
Front Shock Absorbers
......................................... 6-46
Front Suspension and Steering Linkage
............................ 6-46
Front Wheel Bearings .......................................... 6-46
TailgateHandle
............................................... 6-49
HoodLatchesandHinge ........................................ 6-48
Lockcylinders ............................................... 6-49
Propeller Shaft Slip Splines
..................................... 6-48
RearAxle ................................................... 6-33
Recommended Lubricants ...................................... 7-25
Transfercase ................................................ 6-34
Luggagecarrier ................................................. 2-79
Lubrication
..................................................... 6-48
Body
....................................................... 6-48
FrontAxle
................................................... 6-35
Maintenance Otherltems
.................................................. 6-46
Record .................................................. 7.2. 7.27
Scheduled Maintenance .................................... 747-1 8
When Towing
a Trailer ......................................... 4-36
Master Cylinder (See “Brakes”)
Mirrors
........................................................ 2-51
Electric Outside ............................................... 2-52
Inside ....................................................... 2-51
Multifunction Lever .............................................. 2-38
Turn SignalLane Change Indicator
............................... 2-73
Underbody
.................................................. 6-76
... ModelReference .................................................. 111
6
ProCarManuals.com

Safety Belts (continued)
Extender
.................................................... 1-42
Lapshoulder ................................................. 1-29
Larger Children
............................................... 1-40
Properwear ................................................. 1-18
Questions
& Answers .......................................... 1-17
RearSeat
.................................................... 1-28
ReminderLight
............................................... 1-18
Replacing After a Crash
........................................ 1-43
RightFrontPassenger
.......................................... 1-26
Small Children and Babies
...................................... 1-31
Use During Pregnancy ......................................... 1-26
Safety Chains
................................................... 4-39
Safety Warnings and Symbols
........................................ vi
Scheduled Maintenance Services
................................ 747-1 8
Seats
........................................................... 1-2
Controls
...................................................... 1-2
Easy Entry Seat
................................................ 1-6
ManualFront
.................................................. 1-2
PowerDriver’s
................................................ 1-3
RearFolding .................................................. 1-8
Reclining
..................................................... 1-5
Removable
.................................................. 1-10
SeatbackLatches ............................................... 1-5
Secondary Air Injection (AIR System) ............................... 6-59
Service Do-It-Yourself
................................................ 6-3
Parts Identification Label
....................................... 6-80
Publications
................................................... 8-7
Replacement Parts and Filter Recommendations
..................... 6-83
Service Engine Soon Light
................................... 2-7 1, 6-59
Service Station Checks
............................................ 7-29
Shift Indicator Light ......................................... 2-25, 2-72
Shifting Into Park
................................................ 2-28
Single Belt Accessory Drive
....................................... 6-47
SpareTire
...................................................... 5-26
Removal
.................................................... 5-26
Storage
..................................................... 5-37
Specification Charts
.............................................. 6-81
Speedometer
.................................................... 2-65
Starting your Engine
........................................ 2-13, 2-16
Steering ........................................................ 4-7
ColumnShiftLever
............................................ 2-28
In Emergencies
................................................ 4-8
Tips
......................................................... 4-7
Storage Compartments
............................................ 2-56
Other ....................................................... 2-63
Sunvisors
..................................................... 2-53
WhyTheyWork
.............................................. 1-14
b
ProCarManuals.com