Repair CHEVROLET CAVALIER 1984 1.G User Guide

Downloaded from www.Manualslib.com manuals search engine NOTICE: H you need to replace the fuel cap, use only a cap specified for your model. An incorrect fuel cap can result in a serious maHunction of the fuel system or emission control system. You can get a correct replacement cap from your dealer.
CATALYTIC CONVERTER
The catalytic converter is an emission control device added to the exhaust system to reduce exhaust gas pollutants. The converter contains
a ceramic material coated with noble metal catalysts. To prevent contamination
and loss of effectiveness of the catalysts. unleaded gasoline must be used.
Unleaded
gasoline also reduces spark plug fouling, exhaust system corrosion and engine oil deterioration. Leaded gasoline will also damage the oxygen
sensor
in the Computer Command Control system which could affect emission
control.
To help prevent damage:
1. Keep your engine properly maintained. Engine malfunctions involving the
electrical, carburetion, electronic fuel injection or ignition systems may
result in unusually high catalytic converter and exhaust system
temperatures which, under extreme malfunctioning conditions, may ignite
interior floor ·covering materials above the converter. Do not keep driving
your vehicle if you detect engine misfire, noticeable loss of
performance, or other unusual operating conditions. Instead, have it
serviced promptly. See the Maintenance Schedule folder for information on inspecting and maintaining the engine, exhaust system, and other
components.
2. Do not push or tow this vehicle to start it. This may result in unusually
high catalytic converter
and exhaust system temperatures which under
extreme conditions may ignite interior floor-covering material above the
converter.
Disregarding these instructions
could damage the catalytic converter, the vehicle, or nearby property and affect warranty coverage.
COMPUTER COMMAND CONTROL SYSTEM
Most vehicles sold in the United States (and some vehicles sold in Canada)
have the Computer Command Control system.
The Computer Command Control system monitors the exhaust stream with
an oxygen sensor. Based on sensor signals, the electronic control module adjusts
the air-fuel ratio
as needed. It is very important to use only unleaded
gasoline in vehicles equipped with the Computer Command Control system.
Leaded gasoline will damage the oxygen sensor,
and may affect emission
control.
"Check Engine" Light
Most vehicles sold in the United States (and some vehicles sold in Canada)
have the Computer Command Control system.
Vehicles
.with the Computer Command Control system, include a "CHECK
ENGINE" light
on the instrument panel designed to indicate the need for
system service. It will come on during engine starting to let you know the bulb
is working. (The
light will stay on a short time aiter the engine starts.) Have the
system repaired if the "CHECK ENGINE" light does not come on during engine
starting.
If the light comes on, either intermittently or continuously while driving,
service to the Computer Command Control system is required. Although in
5-2

Downloaded from www.Manualslib.com manuals search engine Radiator Pressure Cap
The radiator cap, a 105 kPa (15 psi) pressure type, must be installed tightly, otherwise coolant may be lost and damage to engine may resuK from
overheating . Radiator pressure cap
should be checked periodically for proper
operation .
If replacement is required, an AC cap is recommencled.
ACCELERATOR LINKAGE
Lubricate all pivot points with .engine oil at the interval shown in the
Maintenance
Schedule. Do not lubricate the accelerator cable.
AIR CLEANER ELEMENT
When replacement of air cleaner fmer element is necessary, an AC air Imer
elemenl
is recornmencled .
See your Maintenance Schedule for change intervals . Operation of vehicle in
dusty areas will necessitate more frequent replacement. Your dealer can be of
assistance
in determining the proper replacement frequency for the conditions
under which you operate your
vehicle.
CAUTION: The air cleaner a* functions ... name arrestor in the event of engine backfire . The -air cleaner ehould be lnstaIIed at an times unit .. III removal is neceaary for repair or maintenance. To help reduce the-risk of pereonal Injury and lor property damage , be sure that no one 18 ne.-the engine comJ*1ment before starting the engine wiU'l the air cleaner removed. If engine backfire occurs with the air cleaner remowd, thwe could be-a burst of flame and posaibly other fnln the engine compartment.
HOOD LATCHES AND HOOD HINGE
SeetHe Maintenance Schedule folder to find out how to lubricate hood.latch ·
and hood hinge assembly .
BRAKE MASTER CYLINDER
Check masler cylinder fluid· level in the reservoir at the interval shown in the Maintenance Schedule . If the fluid is low in the reservoir, it should be filled to
the maximum
level line with Delco Supreme No. 11 or OOT-3 fluids.
POWER STEERING SYSTEM
Check the fluid level in the optional power steering pump as recommended in
the Maintenance Schedule folder. Add GM Power Steering Fluid (Part Number
GM 1050017) as needed:
5-10

Downloaded from www.Manualslib.com manuals search engine 4. Always use a tire pressure gage when checking inflation pressures (we
suggest you purchase a
quality pocket-type gage). Simply looking at the tires to check inflation pressures is not enough, . especially with radial. tires.
Underinflated radial tires may look like correctly inflated radial tires. H the
inflation pressure on a tire is often low, have your dealer correct the
cause.
5. Sesure to put the tire inflation valve caps or extensions back on, if so
equipped. This will help keep dirt and moisture from getting into the valve core which could cause a leak.
't! [' V-. , ,-',/ ,
~v"
, " ,
, ,,-I"-v " I'V " ' v-I'-,
" "
,/ " I~ ~::;: ~ ~, ,/
~ J ( " ~ ~ ~ r;S ) :::: ~ ~ t;: ~/ 2~ t: ,
\' , --I PROPERLY INflATED PROPERLY INFLATED IMPROPERLY INFLATED BIAS l ) OR BIAS-BelTED TIRE Y RADIAL TIRE
6. H an air loss. occurs while driving, do not drive on the flat tire more than is
needed to stop safely. Driving even a short distance on a flat tire can
damage a tire and
wheel beyond repair.
Inspection and Rotation
Front and rear tires perform different jobs and can wear differently depending
on the types of roads driven, your driving habits, etc.
For
longer tire IHe, you shOuld inspect and rotate your tires as recommended in
the Maintenance Schedule folder. Many car and tire dealers will perform a free
tire
inspection to look for \meven or abnormal tire Wear (usually caused by
wrong inflation pressures, lack of regular rotation, improper wheel alignment,
out of bslance tires, or poor driving habits).
After rotation, adjust the front and rear tire pressures (see the Tire
Placard)
and be sure to check wheel nut tightness (see also "Wheel Nut Torque" in
Section 3 of this manual.)
fXi
I I 4 WHEEL ROT A I iON ·OPTIONAl
00 NOT INCLUDE "TfMPOT1MIY uS~ ONLY' SPARE TIR E IN .R01 AllON • THE OPTIONAL 'X' ROTATIO N PATTfR N FO R RADIALS IS ACCEPTABU WHE N HEQUIRW
FOR MO RE UNIfOR M TIRE WEAR
5-14

Downloaded from www.Manualslib.com manuals search engine ,
Temperature -A, B, C
The temperature grades are A (the highest), B, and C, representing the tire's
resistance 10 the generation of heat and its ability 10 dissipate heat when tested
under controlled conditions on a specified indoor laboratory test wheel.
Sustained high temperature can cause the material of the tire to degenerate
and reduce tire life, and excessive temperature can lead to sudden tire failure .
The grade
C corresponds 10 a level of performance which all passenger car
tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory lest
wheel than the ",nimum required by law.
Warning : The temperature grade forlhis tire is established for a tire that is properly inflated and not overloaded . . Excessive speed, underinflation, or
excessive loading, either separately or in combination , can cause heal buildup and possible tire failure .
These grades are molded on the sidewalls 01 passenger car tires.
While
the tires available as 'standard or optional equipment .on General
Motors vehicles may vary with respect to these grades, all such tires meet General Motors performance s!andards and have been approved for
use on General Motors vehicles. All passenger car tires must conform to Federal safety requirements in addition to these grades.
You
should replace your tires when:
1 . The tires are worn to a point where 1.6
milHmeters (2/ 32 inch) or less t.read remains, or the cord or fabric is showing. '.
To help you detect this, your tires have built-in tread wear indicators that
appear between the tread grooves when the tread is 1.6 millimeters
(2/32
inch) or less. When the indicators appear in two or more adjacent grooves at
three spots around the tire, the tire should be replaced.
TPC
SPEC. NO .
BRAND
NAME
EXAMPLE TIRE LOAD
RANGE
CONSTRUCTION
2
. The tread or sidewall is cracked, cut or snagged deep enough to expose
the cord or fabric.
3. The tire has a bump , bulge or split.
4 . The tire has a puncture , cut, or other injury thai can 't
be correctly repaired
because of the size or
location of the injury .
5-17

Downloaded from www.Manualslib.com manuals search engine Wheel Replacement
Damaged wheels must be replaced. For example, replace wheels if they are
bent,
cracked,or heavily rusted, or if wheel nuts often become loose. Also
replace wheels which leak air (except some aluminum wheels which can be repaired-- see your authorized dealer). See the Caution under "Inspection and
Rotation"
in this section regarding the importance of obtaining good metal-to­metal contact when replacing or changing wheels.
Do not use bent wheels which have been straightened, and do not use inner
tubes in leaking wheels designed for tubeless tires. Such wheels may have
structural damage and could fail without warning. When replacing wheels for
any reason, the new wheels should be equal in load limit. diameter, width,
offset, and mounting configurations to those originally installed on your vehicle.
A wheel of the wrong size or type may adversely affect such things
as wheel
and bearing life, brake cooling, speedometer I odometer calibration, stopping
ability, headlight
aim, bumper height, vehicle ground clearance, and tire or tire
chain clearance to the body and chassis. Replacement with used wheels is not advised; they may have been treated harshly or have very high mileage, and
could fail without warning.
You can get wheels from your dealer.
Warranty
Tires are warranted by the tire manufa9turers. Warranty information is included
in the manufacturer's Warranty folder furnished With your vehicle.
5-18

Downloaded from www.Manualslib.com manuals search engine GENERAL MOTORS
DIAGNOSIS
AND
REPAIR MANUAL
This new 5th edition of the GMDR Manual is packed with easy to follow
step-by-step troubleshooliog pro­cedures for most new GM cars and Light Trucks.
This
manual has been designed to help you <;liagnoS4j t~ mechanical problems.;n the most-cOmmonly serviced systems:
• , H , ea, t, i, ng & Air Condition 'ing
• Front Wheel Drive " " ·Sfeeririg and Suspension • Cooling System
• Diesel Engine • Transmissions • Chassis and Body Electrical • Charging System
• Engine Performance (fuel and ignition)
Each troubleshooting procedure is
Sho" wn in a step-by-step pi<:ture and symbol formal. Easy to understand, simple to use . '
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