2004 CHEVROLET ASTRO CARGO VAN air conditioning

Fuse/Circuit
BreakerUsage
ENG-IOxygen Sensors, Camshaft Position
Sensor, Mass Air Flow Sensor,
Evaporative Emission Canister
Vent Solenoid
IGN-E Air Conditioning Enable Relay Coil
ECM-IFuel Injectors 1–6, Crankshaft
Position Sensot, VCM, Coil Driver
Module (EST), Ignition Coil
Blank Not Used
RH HDLMP Right Headlamp
LH Headlamp Left Headlamp
Blank Not Used
Blank Not Used
DIODE-1 Air Conditioning
Blank Not Used
Blank Not UsedFuse/Circuit
BreakerUsage
Blank Not Used
LIGHTINGCourtesy Fuse, Power Adjust
Mirrors Fuse, Truck Body Control
Battery Fuse
BATTPower Accessory Circuit Breaker,
Stop/Hazard Fuse, Auxiliary Power
Fuse, Cigarette Lighter Fuse,
Radio Battery Fuse
IGN A Starter Relay, Ignition Switch
IGN B Ignition Switch
ABSElectronic Brake
Control Module
Blank Not Used
RAPRadio Accessory,
Power Windows
HTD MIR/RR
DEFOGRear Window Defogger,
Climate Control Head
5-106

Capacities and Specications
The following approximate capacities are given in English and metric conversions. Please refer to
Part D: Recommended Fluids and Lubricants on page 6-28for more information.
Capacities and Specications
ApplicationCapacities
English Metric
Air Conditioning Refrigerant (R134a)
Front A/C
Front and Rear A/C2.3 lbs.
3.0 lbs.1.0 kg
1.4 kg
Cooling System
Without Rear Heater
With Rear Heater13.5 quarts
16.5 quarts12.8 L
15.6 L
Differential Fluid
Front Axle
Rear Axle2.6 pints
3.5 pints1.2 L
1.7 L
Engine Oil with Filter 4.5 quarts 4.3 L
Fuel Tank 27.0 gallons 101.8 L
5-107

Part C: Periodic Maintenance
Inspections
Listed in this part are inspections and services which
should be performed at least twice a year (for instance,
each spring and fall).You should let your dealer’s
service department do these jobs. Make sure any
necessary repairs are completed at once.
Proper procedures to perform these services may be
found in a service manual. SeeService Publications
Ordering Information on page 7-12.
Steering, Suspension and Front
Drive Axle Boot and Seal Inspection
Inspect the front and rear suspension and steering
system for damaged, loose or missing parts, signs of
wear or lack of lubrication. Inspect the power steering
lines and hoses for proper hook-up, binding, leaks,
cracks, chang, etc. Clean and then inspect the
drive axle boot seals for damage, tears or leakage.
Replace seals if necessary.
Exhaust System Inspection
Inspect the complete exhaust system. 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 build-up in the oor pan or could let
exhaust fumes into the vehicle. SeeEngine Exhaust
on page 2-29.
Fuel System Inspection
Inspect the complete fuel system for damage or leaks.
Engine Cooling System Inspection
Inspect the hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
ttings and clamps; replace as needed. Clean the
outside of the radiator and air conditioning condenser.
To help ensure proper operation, a pressure test of
the cooling system and pressure cap is recommended
at least once a year.
6-26

Chains, Tire...................................................5-76
Charging System Light....................................3-26
Check
Engine Light...............................................3-29
Gages Warning Light...................................3-34
Checking Brake Fluid......................................5-41
Checking Coolant............................................5-27
Checking Engine Oil........................................5-13
Checking Things Under the Hood....................... 5-9
Chemical Paint Spotting...................................5-97
Child Restraints
Child Restraint Systems...............................1-43
Infants and Young Children...........................1-38
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-51
Older Children.............................................1-35
Securing a Child Restraint Designed for
the LATCH System...................................1-54
Securing a Child Restraint in a Center
Seat Position...........................................1-56
Securing a Child Restraint in a Rear
Outside Seat Position...............................1-54
Securing a Child Restraint in the Right
Front Seat Position...................................1-58
Top Strap...................................................1-47
Top Strap Anchor Location............................1-49
Where to Put the Restraint...........................1-46
Cigarette Lighter.............................................3-16Cleaning
Inside of Your Vehicle..................................5-92
Outside of Your Vehicle................................5-95
Underbody Maintenance...............................5-97
Weatherstrips..............................................5-94
Cleaning Aluminum Wheels..............................5-96
Cleaning Exterior Lamps/Lenses.......................5-95
Cleaning Fabric/Carpet....................................5-92
Cleaning Glass Surfaces..................................5-94
Cleaning Interior Plastic Components.................5-94
Cleaning Leather............................................5-93
Cleaning the Top of the Instrument Panel...........5-93
Cleaning the Windshield and
Wiper Blades..............................................5-96
Cleaning Tires................................................5-97
Cleaning Vinyl................................................5-93
Climate Control System...................................3-17
Outlet Adjustment........................................3-19
Rear Air Conditioning System........................3-20
Rear Heating System...................................3-20
Compact Spare Tire........................................5-90
Composite Headlamps.....................................5-54
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-43
Coolant
Engine Temperature Gage............................3-28
Heater, Engine............................................2-21
Cooling System..............................................5-31
3

Power
Accessory Outlets........................................3-15
Door Locks.................................................. 2-8
Electrical System.......................................5-100
Seat............................................................ 1-3
Steering Fluid.............................................5-38
Windows....................................................2-16
Power Steering................................................ 4-9
Programmable Automatic Door Locks.................. 2-8
Programming the HomeLink
®Transmitter...........2-33
Q
Questions and Answers About Safety Belts.........1-17
R
Radiator Pressure Cap....................................5-28
Radios..........................................................3-35
AM-FM Radio.............................................3-36
Care of Your CD Player...............................3-47
Care of Your CDs........................................3-47
Radio with CD............................................3-38
Rear Seat Audio..........................................3-43Radios (cont.)
Setting the Time for Radios with
HR and MN Buttons.................................3-36
Setting the Time for Radios with
the Set Button.........................................3-36
Theft-Deterrent............................................3-44
Understanding Reception..............................3-47
Reading Lamps..............................................2-38
Rear Air Conditioning System...........................3-20
Rear Axle......................................................5-51
Locking........................................................ 4-8
Rear Doors....................................................2-12
Rear Heating System......................................3-20
Rear Safety Belt Comfort Guides......................1-32
Rear Seat Audio (RSA)....................................3-43
Rear Seat Operation......................................... 1-7
Rear Seat Outside Passenger Positions.............1-29
Rear Seat Passengers, Safety Belts..................1-29
Rear Window Defogger....................................3-18
Rearview Mirrors.............................................2-31
Reclining Seatbacks.......................................... 1-4
Recreational Vehicle Towing.............................4-29
Reinstalling the Engine Cover...........................5-21
Remote Keyless Entry System............................ 2-4
Remote Keyless Entry System, Operation............ 2-5
11