check engine CHEVROLET CAVALIER 1995 3.G Service Manual

Downloaded from www.Manualslib.com manuals search engine 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.
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
H mark if the engine is warm,
or at the
C mark if the engine is cold. 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
Lubr’
nts” in the Index.
I 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 Inflation - Tire Pressure
The Tire-Loading Information 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.
NOTICE: (Continued) NOTICE:
(Continued)
If your tires have too much air (overinflation),
you can get:
Unusual wear
Bad handling
0 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.
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Downloaded from www.Manualslib.com manuals search engine Tire Inspection 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 Tire-Loading
Information label. Make certain that all wheel nuts are
properly tightened. See “Wheel Nut Torque” in the
Index.
FRONT
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Downloaded from www.Manualslib.com manuals search engine When It’s Time for New Tires
1 One way to tell when it’s
1 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.
0 The tire has a puncture, cut, or other damage that
can’t be repaired well because
of the size or location
of the damage.
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Downloaded from www.Manualslib.com manuals search engine Cleaning the Top of the Instrument Panel
Use only mild soap and water to clean the top surfaces
of the instrument panel. Sprays containing silicones or
waxes may cause annoying reflections
in the windshield
and even make
it difficult to see through the windshield
under certain conditions.
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 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.
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Downloaded from www.Manualslib.com manuals search engine Vehicle Identification Number (VIN)
SAMPLE4UXSMO72675
ENGINE / 1995 ASSEMBLY
?
CODE MODEL YEAR PLANT
This is the legal identifier for your Chevrolet. It appears
on
a plate in the front corner of the instrument panel, on
the driver’s side. You can see it if you look through the
windshield from outside your vehicle. The VIN also
appears on
the Vehicle Certification and Service Parts
labels and the certificates
of title and registration.
Engine Identification
The eighth character in your VIN is the engine code.
This code will help
you identify your engine,
specifications, and replacement parts.
Service Parts Identification Label
You’ll find this label on your spare tire cover. It’s very
helpful
if you ever need to order parts. On this label is:
0 your VIN,
0 the model designation,
0 paint information, and
0 a list of all production options and special equipment.
Be sure that this label is not removed from the vehicle.
Add-on Electrical Equipment
N.OTICE:
Don’t add anything electrical to your Chevrolet
unless you check with your dealer first. Some
electrical equipment can damage your vehicle and
the damage wouldn’t be covered by your warranty.
Some add-on electrical equipment can keep other
components from working
as they should.
Your vehicle has an air bag system. Before attempting to
add anything electrical to your Chevrolet, see “Servicing
Your Air Bag-Equipped Chevrolet”
in the Index.
6-51

Downloaded from www.Manualslib.com manuals search engine Fuses and Circuit Breakers There is also a fuse block at the driver’s side in the
engine compartment. Lift off the cover to check the
fuses.
To identify and check fuses, refer to the Fuse Usage
chart.
The wiring circuits
in your vehicle are protected from
short circuits by
a combination of fuses, circuit breakers, Look at the silver-colored band inside the fuse. If the
and fusible thermal links in the wiring itself. This
band is broken or melted, replace the fuse. Be sure you greatly reduces the chance of damage caused by
replace a bad fuse with a new one of the identical size
electrical problems. and rating.
The fuse panel is located under the left end of the
instrument panel.
To open, push the tab on the access
door
to the left and pull the door forward.
6-52

Downloaded from www.Manualslib.com manuals search engine I 1
Under Hood Fuse Block
Fuse
AIC
ABS
ABS
BATT 1
BATT 2
BLO
COOLING FAN
GEN
IGN
PCM
Circuitry
A/C Compressor (2.3L Engine)
Anti-Lock Brake System
Electronic Variable Orifice Steering,
Anti-Lock Brake System
Power ACC/Stop
Lamp Circuits
Lighting Circuits
Heater/ A/C Blower
Engine Cooling Fan
Generator-Voltage Sense
Ignition Switch Circuits
Powertrain Control Module
Headlamp Wiring
The headlamp wiring is protected by a circuit breaker.
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 system 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, have
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.

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 Chevrolet 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 ways 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 Chevrolet 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:
0 carry passengers and cargo within recommended
limits. You will find these limits on your vehicle’s
Tire-Loading Information 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 Schedule
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:
7-3