check engine CHEVROLET ASTRO CARGO VAN 1995 2.G Workshop Manual

Downloaded from www.Manualslib.com manuals search engine lnflation - Tire Pressure
The CertificatiodTire label which is on the rear edge of the driver’s door,
shows the correct inflation pressures for your tires, when they’re cold.
“Cold” means your vehicle has been sitting for at least three hours or driven
no more than a mile.
NOTICE:
Don’t let anyone tell you that underinflation or overinflation is
all right. It’s not. If your tires don’t have enough air
(underinflation) you can get:
Too much flexing
Too much heat
Tire overloading
Bad wear
Bad handling
Bad fuel economy.
If your tires have too much air (overinflation), you can get:
Unusual wear
Bad handling
Rough ride
Needless damage from road hazards.
When to Check
Check your tires once a month or more.
Don’t forget your compact spare tire. It should be at
60 psi (420 kPa).
How to Check
Use a good quality pocket-type gage to check tire pressure. Simply looking
at the tires will not tell you the pressure, especially if you have radial tires
- which may look properly inflated even if they’re underinflated.
If your tires
have valve caps, be sure to put them back on. They help prevent
leaks by keeping
out dirt and moisture.
6-42

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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Downloaded from www.Manualslib.com manuals search engine When It’s Time for New Tires
Tread Wear
Indicators
One way to tell when
it’s time for new tires
is
to check the
treadwear indicators,
which will appear
when your tires have
only
1/16 inch (1.6
mm) or less of tread
remaining.
You need a new tire if:
You can see the indicators at three or more places around the tire.
You can see cord or fabric showing through the tire’s rubber.
The tread or sidewall is cracked, cut or snagged deep enough to show
cord or fabric.
The tire has a bump, bulge or split.
The tire has a puncture, cut, or other damage that can’t be repaired well
because of the size or location of
the damage.
Buying New Tires
To find out what kind and size of tires you need, look at the
CertificatiodTire label.
The tires installed on
your vehicle when it was new had a Tire Performance
Criteria Specification (TPC Spec) number on each tire’s sidewall. When
you
get new tires, get ones with that same TPC Spec number. That way, your
vehicle will continue to have tires that are designed to give proper
endurance, handling, speed rating, traction, ride and other things during
normal service
on your vehicle. If your tires have an all-season tread
design, the TPC number will be followed by an
“MS” (for mud and snow).
If you ever replace your tires with those not having a TPC Spec number,
make sure they are the same size, load range, speed rating and construction
type (bias, bias-belted or radial) as your original tires.
6-44

Downloaded from www.Manualslib.com manuals search engine Care of Safety Belts
Keep belts clean and dry.
Glass
Glass should be cleaned often. GM Glass Cleaner (GM Part No. 1050427)
or a liquid household glass cleaner will remove normal tobacco smoke and
dust films.
Don’t use abrasive cleaners on glass, because
they may cause scratches.
Avoid placing decals on the inside rear window, since they may have to be
scraped
off later. If abrasive cleaners are used on the inside of the rear
window, an electric defogger element may be damaged. Any temporary
license should not be attached across the defogger grid.
Cleaning the Outside of the Windshield,
Backglass and Wiper Blades
If the windshield is not clear after using the windshield washer, or if the
wiper blade chatters when running, wax
or other material may be on the
blade or windshield.
Clean the outside
of the windshield with GM Windshield Cleaner, Bon-Ami
Powder@ (GM Part
No. 105001 1). The windshield is clean if beads do not
form when you rinse it with water.
Clean the blade by wiping vigorously with a cloth soaked in full strength
windshield washer solvent. Then rinse the blade with water.
Wiper blades should be checked on a regular basis and replaced when worn.
Weatherstrips
Silicone grease on weatherstrips will make them last longer, seal better, and
not stick or squeak. Apply silicone grease with a clean cloth at least every
six months. During very cold, damp weather more frequent application may
be required. (See “Recommended Fluids
& Lubricants’’ in the Index.)
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Downloaded from www.Manualslib.com manuals search engine Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from short circuits by a
combination of fuses, circuit breakers, and fusible thermal links in
the
wiring itself. This greatly reduces the chance of fires caused by electrical
problems.
See “Fuses and Circuit Breakers” in the Index for more
information.
Headlamps
The headlamp wiring is protected by a circuit breaker in the lamp switch.
An electrical overload will cause the lamps
to go on and off, or in some
cases to remain off. If this happens, have your headlamp wiring checked
right away.
Windshield Wipers
The windshield wiper motor is protected by a circuit breaker and a fuse. If
the motor overheats due
to heavy snow, etc., the wiper will stop until the
motor cools. If the overload is caused by some electrical problem and not
snow, etc., be sure to get it fixed.
Power Windows and Other Power Options
Circuit breakers in the fuse panel protect the power windows and other
power accessories. When the current load is too heavy, the circuit breaker
opens and closes, protecting the circuit until the problem is fixed or goes
away.
Trailer Wiring Harness
The optional eight-wire trailer wiring harness is protected by an in-line fuse
in the battery feed wire. This fuse is near the junction block, See “Trailer
Wiring Harness” in the Index.
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Downloaded from www.Manualslib.com manuals search engine Engine identification
Engine Description
Type
VIN Code
Fuel System
Produced By
Emissions
**Central
Port Fuel Injection
Wheel Nut Torque
DESCRIPTION
Base or Optional Wheel
4.3L
V6
W
CPI* *
us.
L.D.
Cooling System Capacity
ENGINE VIN CODE
4.3L W
TORQUE
100 ft. lbs. (140 Nom)
QUANTITY* Without Rear
Heater
13.5 Quarts
(12.8 Liters)
QUANTITY*
With Rear
Heater
16.5 Quarts
( 15.5 Liters)
*All quantities are approximate. After refill, the level MUST be checked.
Crankcase Capacity
ENGINE
4.3L
VIN CODE
w
QUANTITY*
With Filter
4.5 Quarts (4.3 Liters)
*All quantities are approximate. After refill, the level MUST be checked.
Do not overfill.
Fuel Tank Capacity
TYPE
Standard Tank
QUANTITY*
27 Gallons ( 102 Liters)
*All quantities are approximate.
6-62

Downloaded from www.Manualslib.com manuals search engine How This Section is Organized
The remainder of this section is divided into five parts:
“Part A: Scheduled Maintenance Services” shows what to have done and
how often. Some of
these services can be complex, so unless you are
technically qualified and have the necessary equipment,
you should let your
dealer’s service department or another qualified service center do
these jobs.
If
you are skilled enough to do some work on your vehicle, you will
probably want to get the service information
GM publishes. See “Service
Publications”
in the Index.
“Part B: Owner Checks and Services” tells you what should be checked
whenever you stop for fuel. It also explains what
you can easily do to help
keep your
vehicle in good condition.
“Part C: Periodic Maintenance Inspections” explains important
inspections that your
GM dealer’s service department or another qualified
service center should perform.
“Part D: Recommended Fluids and Lubricants” lists some products GM
recommends to help keep your vehicle properly maintained. These products,
or their equivalents, should be used whether you do the work yourself or
have
it done.
“Part E: Maintenance Record” provides a place for you to record the
maintenance performed on your vehicle. Whenever any maintenance is
performed, be sure
to write it down in this part. This will help you
determine when your next maintenance should be done. In addition,
it is a
good idea to keep your maintenance receipts. They may be needed to
qualify your vehicle for warranty repairs.
7-2

Downloaded from www.Manualslib.com manuals search engine Part A: Scheduled Maintenance Services
Using Your Maintenance Schedule
We at General Motors want to help you keep your vehicle in good working
condition. But we don’t know exactly how you’ll drive it.
You may drive
very short distances only
a few times a week. Or you may drive long
distances all the time
in very hot, dusty weather. You may use your vehicle
in making deliveries.
Or you may drive it to work, to do errands or in many
other ways.
Because
of all the different iYi@ people use their GM vehicles, maintenance
needs vary. You may even need more frequent checks and replacements than
you’ll find in the schedules in this section.
So please read this section and
note how you drive. If you have any questions on how to keep your
vehicle
in good condition, see your GM dealer.
This part tells you the maintenance services you should have done and when
you should schedule them. If you go to your dealer for your service needs,
you’ll know that GM-trained and supported service people will perform the
work using genuine GM parts.
The proper fluids and lubricants to use are listed
in Part D. Make sure
whoever services your vehicle uses these. All parts should be replaced
and
all necessary repairs done before you or anyone else drives the vehicle.
These schedules are for vehicles that:
carry passengers and cargo within recommended limits. You will find
these limits on your vehicle’s CertificatiodTire label. See “Loading
Your Vehicle’’
in the Index.
are driven on reasonable road surfaces within legal driving limits.
use the recommended unleaded fuel. See “Fuel’’ in the Index.
Selecting the Right Schedu/e
First you’ll need to decide which of the two schedules is right for your
vehicle. Here’s how to decide which schedule
to follow:
1-3

Downloaded from www.Manualslib.com manuals search engine Every 60,000 Miles (100 000 km)
Engine Accessory Drive Belt Inspection
Spark Plug Wire Inspection
Engine Timing Check
Fuel Tank. CaD and Lines Inspection
Schedule 11 Definition I
Follow Schedule I1 only if none of the conditions from Schedule I is true.
Sohedule I1 Intervals
Every
7,500 Miles (12 500 km)
Engine Oil and Filter Change (or every 12 months, whichever occurs first)
Chassis Lubrication (or every 12 months, whichever occurs first)
Drive Axle Service
At 7,500 Miles (12 500 km) - Then Every 15,000 Miles (25 000 km)
Tire Rotation
Every 30,000 Miles (50 000 km)
Cooling System Service (or every 24 months, whichever occurs first)
Spark Plug Replacement
Fuel Filter Replacement
Air Cleaner Filter Replacement
Front Wheel Bearing Repack (or at each brake relining, whichever occurs
first
(2WD Only)
Every 50,000 Miles (83 000 km)
Automatic Transmission Service (severe conditions)
Every 60,000 Miles (100 000 km)
Spark Plug Wire Inspection
Engine Accessory Drive Belt Inspection
Fuel Tank, Cap and Lines Inspection
7-5

Downloaded from www.Manualslib.com manuals search engine I Maintenance Schedule I
The services shown in this schedule up to 100,000 miles ( 166 000 km)
should be performed after 100,000 miles (166
000 km) at the same intervals.
Footnotes
f The California Air Resources Board has determined that the failure to
perform this maintenance item will not nullify the emission warranty or
limit recall liability prior to the completion of vehicle useful life. We,
however, urge that all recommended maintenance services be performed at
the indicated intervals and the maintenance be recorded.
** Drive axle service:
Locking Differential - Drain fluid and refill at first engine oil change.
At subsequent oil changes, check fluid level and add fluid as needed. If
driving in dusty areas or towing a trailer, drain fluid and refill every
15,000 miles (25 000 km).
Standard Differential - Check fluid level and add fluid as needed at
every oil change. If driving in dusty areas or towing a trailer, drain
fluid and refill every 15,000 miles
(25 000 km).
More frequent lubrication may be required for heavy-duty use.
3,000 Miles (5 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs
first).
An Emission Control Service.
Lubricate the front suspension, ball joints and king pin bushings,
steering linkage and transfer case shift linkage, parking brake cable
guides, and brake pedal springs at every oil change (or every
6 months,
whichever occurs first).
0 Check readfront axle fluid level and add fluid as needed. Check
constant velocity joints and axle seals
for leaking. **
I DATE I ACTUALMILEAGE I T~RVICED BY
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