1993 CHEVROLET ASTRO PASSENGER engine coolant

Downloaded from www.Manualslib.com manuals search engine Radiator Pressure Cap
PO407
"wr radiator pressure cap is a 15 psi (1 05 kPa) pressure-type cap and
wst be tightly installed to prevent coolant
loss and possible engine
damage from overheating. Be sure the arrows on the pressure cap
lir
with overflow tube on the radiator filler neck.
I
I
When you replace your radiator pressure cap, ul~ AC@ cap is IGdommendGu.
Thermostat
Engine coolant temperature is controlled by a thermostat in the\
engine coolant
system. The thermostat stops the flow
of coolant through the radiator until the
coolant reaches a preset temperature.
When you replace your thermostat, an AC@ thermostat is recommended.
6-29

Downloaded from www.Manualslib.com manuals search engine Scheduled Maintenance Services
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 th\
e vehicle.
1. ENGINE OIL AND OIL FILTER CHANGE* -ALWAYS USE SG OR
SG/CE QUALITY, ENERGY CONSERVING II OILS OF THE PROPER
VISCOSITY.
To determine the preferred viscosity oil for your vehicle’s
engine (e.g. SAE 5W-30). See “Engine Oil” in the Index.
bushings, steering linkage, transfer case shift linkage, parking \
brake cable
guides, propshaft splines, universal joints and brake pedal spri\
ngs at the
intervals specified on the proper maintenance schedule or at ev\
ery
engine oil change, whichever comes first.
2.
CHASSIS LUBRICATION -Lubricate the front suspension, king pin
Ball joints and king pin bushings should not be lubricated unl\
ess 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.
COOLING SYSTEM SERVICE* -Drain, flush and refill system with new
coolant. See the Index under “Engine Coolant” for the pro\
per 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. Clean the outside of the radiator
and air conditioning condenser. Wash the radiator neck.
To ensure proper
operation, pressure test the radiator and cap.
4. AIR CLEANER FILTER REPLACEMENT* -Replace at specified
intervals. Replace more often under dusty conditions. Ask your \
dealer for
the proper replacement intervals for your driving conditions.
5. 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.
* An Emission Control Service

Downloaded from www.Manualslib.com manuals search engine Scheduled Maintenance Services
Recommended Fluids & Lubricants
NOTE: Fluids and lubricants identified below by name, part number or
specification may be obtained from your GM Dealer.
USAGE FLUID/LUBRICANT
Engine Oil GM Goodwrench Motor Oil or equivalent for API Service SG
or SGlCE of the recommended viscositv.
Engine Coolant Mixture
of water and a good quality ethylene
glycol base
antifreeze conforming
to GM-6038-M (GM Part No. 1052103).
Hydraulic Brake Systems Delco Supreme
ll@ brake fluid (GM Part No. 1052535 or
I DOT-3).
Parking Brake Cables Chassis lubricant meeting requirements of GM-6031-M (GM
Part No. 1052497).
Power Steering System GM Power Steering Fluid (GM Part No. 10\
50017) or equivalent conforming
to GM spec 9985010.
Manual Steering Gear GM Lubricant (GM Part No. 1052182) or e\
quivalent.
Automatic Transmission DEXRONB IIE Automatic Transmission Fluid (GM Part No.
~ ~~
1051 855).
Differential:
a. Standard - Front and a. SAE-80W-90 gear lubricant (GM Part No. 1052271).\

Rear Axle
b. SAE-80W-90 gear lubricant (GM Part No. 1052271).
b. Locking
Transfer Case DexronB
IIE Automatic Transmission Fluid (GM Part No.
1051 855).
Column Shift, Propeller Shaft Chassis lubricant meeting requireme\
nts of NLGl Grade
2,
Slip Splines and Universal Category LB or GC-LB (GM Part No. 10524\
97).
Joints.
Hood Latch Assembly
a. Pivots and spring anchor a. Engine oil (GM Part No. 1050109).
b. Release Pawl b. Chassis lubricant meeting requirements of GM-6031-M
Front Wheel Bearings Wheel bearing lubricant meeting requirements\
of NLGl Grade
Constant Velocity
U I Joint Chassis lubricant meeting requirements of GM-6031-M (GM
(GM Part No. 1052497).
2, Category GC or GC-LB (GM Part No. 1051344).
Part
No. 1052497)
Automatic Transmission Shift Engine oil
Linkage, Floor Shift Linkage,
Hood and Door Hinges, Body
Door Hinge Pins, Folding Seat,
Fuel Door Hinge
(Continued next page) TO279
7-1 4

Downloaded from www.Manualslib.com manuals search engine Service Station Checks
It is important for you or a senrice 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 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.
7-1 7

Downloaded from www.Manualslib.com manuals search engine c
Carbon Monoxide ..... 2.24. 4.42. 4-47
Capacities and Specifications
...... 6-64
Cassette Tape Player
Catalytic Converter
....................... 6-41
Certification/Tire Label
.................. 6-42
Changing
A Flat Tire .. 5.16. 5.17. 5-21
Charging System Light
................ 2-65
Chemical Paint Spotting
.............. 6-58
Child Restraints
............................ 1-33
Cigarette Lighter/Ashtrays
............ 2-50
Cleaning
Glass
.......................................... 6-55
Inside
of Vehicle ....................... 6-53
Instrument Panel
....................... 6-55
Outside of Vehicle .................... 6-56
Special Problems
...................... 6-54
Vinyl or Leather
........................ 6-55
Windshield
................................. 6-56
Comfort Controls
............................ 3-3
Constant Velocity Joints (All Wheel Drive Only)
............. 6-40
Coolant (See “Engine”)
Cooling System
............................ 6-64
Crankcase
..................................... 6-65
Cruise Control
............................... 2-35
Increase Speed
......................... 2-38
On Hills
..................................... 2-39
Passing
...................................... 2-39
Reduce Speed
.......................... 2-39
Resume a Set Speed
.............. 2-37
To Get Out of
........................... 2-40
To Set
....................................... 2-36
Hearing or Speech Impaired
..... 8-3
Procedure
.................................... 8-2
(See “Audio Systems”)
Clock
..... 3-12, 3-14. 3-17, 3-20, 3-24
Customer Assistance for the Customer Satisfaction
D
Finish ......................................... 6-57
Sheet Metal
............................... 6-57
Daytime Running Lights
(Canada Only)
.................... 2-43, 2-66
Indicator Light
.................. 2-43, 2-66
Defogger, Rear Window
................. 3-8
Dome Lights
.................................. 2-44
Doors
............................................... 2-5
Power Locks
.............................. 2-11
Rear
............................................. 2-7
Side
.............................................. 2-5
Side, Sliding
................................ 2-6
Sliding Tracks
............................ 6-40
At Night
........................... 4-23, 4-25
City
............................................. 4-30
Control
Of A Vehicle ................ 4-12
Defensive
..................................... 4-8
Highway Hypnosis
..................... 4-34
Hydroplaning
.............................. 4-27
In
A Blizzard ............................. 4-42
In Deep Snow
........................... 4-43
In Fog, Mist and Haze
............. 4-28
In Sand, Mud, Ice or Snow
..... 5-32
In The Rain
..................... 4-26, 4-28
Long Distance
........................... 4-33
Loss
of Control ......................... 4-22
Night Vision
............................... 4-24
On Curves
................................. 4-18
On Grades
................................. 4-48
On Hill and Mountain Roads
... 4-35
On Snow or Ice
........................ 4-40
On The Freeway
....................... 4-31
Skidding
..................................... 4-22
Through Deep Water
................ 2-16
Winter
......................................... 4-40
With a Trailer
............................ 4-47
Drunken Driving
.............................. 4-9
Damage
Locks
.......................................... 2-10
Driving
9-2

Downloaded from www.Manualslib.com manuals search engine ..
.
E
Engine Block Heater
..................... 2.16. 3-9
Coolant
............................ 5.11. 6-26
Coolant Temperature Gage
...... 2-60
Cover
......................................... 6-1 5
Exhaust ............................ 2.24. 6-41
Fan Noise
.................................. 5-1 6
Identification
..................... 6.60. 6-64
Oil (See “Oil”) Overheating
................................. 5-8
Running While Parked
... 2.22. 2-25
Equipment. Add-on
...................... 6-44
Exhaust System
............................ 6-41
F
Finish Care
........................................... 6-56
Damage
..................................... 6-57
Automatic Transmission
............ 6-20
Brake
......................................... 6-32
Capacities
.................................. 6-64
Coolant
............................ 5.11. 6-26
Leak Check
............................... 6-34
Power Steering
......................... 6-30
Transfer Case
........................... 6-23
Windshield Washer
................... 6-31
Fog Lamps
.................................... 2-42
Four-wheel Antilock
..................... 4-1 5
Front Seats ..................................... 1-2
Fuel
................................................. 6-4
Gage
.......................................... 2-63
In Foreign Countries
................... 6-6
Regulator
................................... 2-1 5
Tank Capacity ........................... 6-65
Fuse Block
.................................... 6-63
Fuses and Circuit Breakers
......... 6-68
Fluid
Filling Your Tank
......................... 6-6
G
Gages
Fuel ............................................ 2-63 ....
Voltmeter .................................... 2-64
Gasolines for Cleaner Air
.............. 6-5
H
Hatch Release Switch .................. 2-27
Hazard Warning Flashers
.............. 5-2
Head Restraints
............................ 1-11
Headlights
...................................... 6-35
High Beams
..................... 2.66. 4-24
High-Low Beam
......................... 2-31
Reminder Light
.......................... 2-44
Heating System
.............................. 3-5
Fan Lever
.................................... 3-5
Rear
............................................. 3-7
Temperature Lever
...................... 3-5
Highway Hypnosis
........................ 4-34
Hitches Hood Block Heater.,
............................ 2-16
Function Lever
............................ 3-5
4-46
...........................................
Latches and Hinge ................... 6-40
Release
........................................ 6-8
Horn
............................................... 2-28
Hydroplaning
................................. 4-27
I
If You’re Stuck in Sand. Mud.
Ice or Snow
.............................. 5-32
Ignition Switch
............................... 2-13
Inflation-Tire Pressure
................... 6-45
Instrument Cluster
........................ 2-52
Standard
.................................... 2-55
Digital
......................................... 2-52
J
Jack Storage ................................. 5-18
Jump Starting
.................................. 5-3
9-3