1995 CHEVROLET ASTRO CARGO VAN maintenance

Downloaded from www.Manualslib.com manuals search engine A//- Wheel Drive
If you have an all-wheel-drive vehicle, be sure to perform the lubricant
checks described in this section. However, they have two additional systems
that need lubrication.
Transfer Case
When to Check Lubricant
Refer to the Maintenance Schedule to determine how often to check the
lubricant. See “Periodic Maintenance Inspections’’ in the Index.
How to Check Lubricant
If the level is below
the bottom
of the filler
plug hole, you’ll need
to add some lubricant.
Add enough lubricant
to raise the level
to the
bottom
of the filler
plug hole.
What to Use
Refer to the Maintenance Schedule to determine what kind of lubricant to
use. See “Recommended Fluids and Lubricants” in the Index.
Front Axle
When to Check and Change Lubricant
Refer to the Maintenance Schedule to determine how often to check the
lubricant and when to change it.
See “Scheduled Maintenance Services’’ in
the Index.
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Downloaded from www.Manualslib.com manuals search engine How to Check Lubricant
If the level is below
the bottom
of the filler
plug hole, you’ll need
to add some lubricant.
Add enough lubricant
to raise the
level to the
bottom of the filler
plug hole.
What to Use
Refer to the Maintenance Schedule to determine what kind of lubricant to
use. See “Recommended Fluids and Lubricants’’
in the Index.
Rear Axle
When to Check and Change Lubricant
Refer to the Maintenance Schedule to determine how often to check the
lubricant and when to change
it. See “Scheduled Maintenance Services” in
the Index.
How to Check Lubricant
- If the level is below
the bottom
of the filler
plug hole, you’ll need
to add some lubricant.
Add enough lubricant
to raise the level to the
bottom of the filler
plug hole.
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Downloaded from www.Manualslib.com manuals search engine What to Use
Refer to the Maintenance Schedule to determine what kind of lubricant to
use. See “Recommended Fluids and Lubricants”
in the Index.
Engine Coolant
The following explains your cooling system and how to add coolant when it
is low. If you have a problem with engine overheating, see “Engine
Overheating”
in the Index.
The proper coolant
for your vehicle will:
0 Give freezing protection down to -34°F (-37°C).
0 Give boiling protection up to 262 OF ( 1 28 O C).
0 Protect against rust and corrosion.
0 Help keep the proper engine temperature.
0 Let the warning lights and gages work as they should.
What to Use
Use a mixture of one-half clean wafer (preferably distilled) and one-half
antifreeze that meets
“GM Specification 6038-M,” which won’t damage
aluminum parts. You can also use a recycled coolant conforming to “GM
Specification 6038-M. Use
GM Coolant Supplement (Sealer) with a
complete coolant flush and refill.
If you use this mixture, you don’t need to
add anything else.
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Downloaded from www.Manualslib.com manuals search engine Power Steering Fluid
How To Check Power Steering Fluid
When the engine compartment is cool, unscrew the cap and wipe the
dipstick with a clean rag. Replace the cap and completely tighten it. Then
remove the cap again and look at the fluid level on the dipstick.
The level should be at the FULL
COLD mark. Add enough fluid to bring
the level up to the mark.
A fluid loss in this system could indicate a problem. Have the system
inspected and repaired.
What to Add
Refer to the Maintenance Schedule to determine what kind of fluid to use.
See “Recommended Fluids and Lubricants” in the Index.
NOTICE:
When adding power steering fluid or making a complete fluid
change, always use the proper fluid. Failure to use the proper\

fluid can cause leaks and damage hoses and seals.
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Downloaded from www.Manualslib.com manuals search engine Brakes
Brake Master Cylinder
Your brake master cylinder is here. It is filled with DOT-3 brake fluid.
There are only two reasons why the brake fluid level in your master cylinder
might
go down. The first is that the brake fluid goes down to an acceptable
level during normal brake lining wear. When new linings are put in, the
fluid level goes back up. The other reason is that fluid
is leaking out of the
brake system.
If it is, you should have your brake system fixed, since a leak
means that sooner or later your brakes won’t work well, or won’t work at
all.
So, it isn’t a good idea to “top off’ your brake fluid. Adding brake fluid
won’t correct a leak.
If you add fluid when your linings are worn, then
you’ll have too much fluid when you get new brake linings. You should add
(or remove) brake fluid, as necessary, only when work is done on the brake
hydraulic system.
A CAUTION:
If you have too much brake fluid, it can spill on the engine. The
fluid will burn
if the engine is hot enough. You or others could
be burned, and your vehicle could be damaged. Add brake fluid \
only
when work is done on the brake hydraulic system.
Refer to the Maintenance Schedule to determine when to check your brake
fluid. See “Periodic Maintenance Inspections” in the Index.
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Downloaded from www.Manualslib.com manuals search engine 5. Pull out the bulb
and replace it
with the new
bulb.
6. Reverse Steps
1-4 to reinstall
the rear lamp.
Center High Mounted Stop Lamp (CHMSL)
I
Other Maintenance Items
Windshield Wiper Blade Replacement
To replace your
windshield wiper
blade inserts, lift the
wiper arm away from
the windshield. Pinch the two tabs on the
wiper
arm and slide
the insert out of the
blade. Slide the new
one in place. Make
sure the tabs are
locked into position.
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Downloaded from www.Manualslib.com manuals search engine Air Conditioning
Every now and then have your dealership check your air conditioning
system
to be sure it has not lost any cooling ability. If you think the system
is not working properly, have your dealership check it out as soon as
possible.
The air conditioning will not work when the temperature
is below 40°F
(4°C).
Lock Cylinders
To be sure your locks operate properly, they must be lubricated.
Refer
to the Maintenance Schedule to determine how often to lubricate them
and what type
of lubricant to use.
You should not use penetrating oils because they could wash out the factory
installed lubricant and cause the lock to bind. De-icers which contain
alcohol could also wash away the lubricant,
so be sure to lubricate the lock
after using a de-icer of this type.
Exhaust System
To help prevent damage to your exhaust system, do not continue to drive
your vehicle if you notice:
0 Engine misfiring
Loss of performance
Exhaust system components hanging lower than normal.
Loud exhaust system noises.
Other unusual operating conditions
Have your engine and exhaust system serviced regularly.
Three-way Catalytic Converter
Your vehicle’s three-way catalytic converter is designed to reduce the
pollutants in your vehicle’s exhaust. Use only unleaded fuel in your vehicle.
If you use leaded fuel, you could damage your three-way catalytic converter
and other engine components.
Engine Control Module System
This system has an oxygen (02) sensor that helps keep your engine’s
air-fuel mixture at a proper level. Use only unleaded fuel in your vehicle. If
you
use leaded fuel, you could damage your oxygen (02) sensor and affect
your vehicle’s emissions.
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Downloaded from www.Manualslib.com manuals search engine Tire lnspection and Rotation
Tires should be inspected every 6,000 to 8,000 miles ( 10 000 to 13 000 km)
for any signs of unusual wear. If unusual wear
is present, rotate your tires as
soon
as possible and check wheel alignment. Also check for damaged tires
or wheels. See “When It’s Time for New Tires” and “Wheel Replacement”
later
in this section for more information.
The purpose
of regular rotation is to achieve more uniform wear for all tires
on the vehicle. The first rotation is the most important. See “Scheduled
Maintenance Services”
in the Index for scheduled rotation intervals.
When rotating your tires, always use
the
correct rotation
pattern shown here.
Don’t include the compact spare tire
in your tire rotation.
After the tires have been rotated, adjust the front and rear inflation pressures
as shown on
the Certification/Tire label. Make certain that all wheel nuts are
properly tightened. See “Wheel
Nut Torque” in the Index.
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