radiator cap CHEVROLET ASTRO 1999 User Guide

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7-45
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 or other qualified service center 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. See ªService and Owner
Publicationsº in the Index.
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, chafing, 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 floor pan or could let
exhaust fumes into the vehicle. See ªEngine Exhaustº in
the Index.
Engine Cooling System Inspection
Inspect the hoses and have them replaced if they are
cracked, swollen or deteriorated. Inspect all pipes,
fittings 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.

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9-8
Radiator 5-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radiator Pressure Cap 6-26 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radio Reception 3-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radios 3-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rain, Driving In 4-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratchet, Wheel 5-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reading Lamps 2-39, 2-44 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear
Air Conditioning System 3
-5 . . . . . . . . . . . . . . . . . . . . . . . .
Axle 6-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heating System 3-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside Seat Position 1-34 . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Belt Comfort Guides 1-37 . . . . . . . . . . . . . . . . . . . . .
Seat Audio 3-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Passengers 1-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Towing 5-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Window Defogger 3-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Washer 2-34 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rearview Mirror 2-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reclining Front Seatbacks 1-4 . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Fluids and Lubricants 7-47 . . . . . . . . . . . . . . .
Recovery Tank, Coolant 5-12 . . . . . . . . . . . . . . . . . . . . . . . . . .
Recreational Vehicle Towing 4-27 . . . . . . . . . . . . . . . . . . . . . .
Refrigerants, Air Conditioning 6-68 . . . . . . . . . . . . . . . . . . . .
Regulator, Fuel 2-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Compact Disc Player 3-23 . . . . . . . . . . . . . . . . . . . . .
Removable Rear Seats 1-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replacement
Bulbs 6
-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 6-69 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel 6-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing Safety Belts 1-63 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reporting Safety Defects 8-10, 8-11 . . . . . . . . . . . . . . . . . . . .
Restraints
Checking 1
-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Child 1-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Head 1-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing Parts After a Crash 1-63 . . . . . . . . . . . . . . . . . . .
System Check 7-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reverse 2-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Right Front Passenger Position 1-26 . . . . . . . . . . . . . . . . . . . .
Roadside Assistance 8-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Roadside Assistance, Canadian 8-7 . . . . . . . . . . . . . . . . . . . . .
Rocking Your Vehicle 5-33 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rotation, Tires 6-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Belt Extender 1-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Belts 1-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adults 1-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Care 6-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Center Rear Passenger Position 1-40 . . . . . . . . . . . . . . . . . .
Children 1-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driver Position 1-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Extender 1-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .