wheel CADILLAC SEVILLE 1993 4.G Workshop Manual

Downloaded from www.Manualslib.com manuals search engine Deadwear
The treadwear grade is a comparative rating based on the wear rate of
the tire
when tested under controlled conditions on a specified
government test course. For example,
a tire graded 150 would wear one
and
a half (1 1/2) times as well on the government course as a tire graded
100. The relative performance of tires depends upon the actual
conditions of their use, however,
and may depart significantly from the
norm
due to variations in driving habits, service practices and differences
in road characteristics and climate.
Traction - A, B, C
The traction grades, from highest to lowest are: A, B, and C. They
represent the tire’s ability to stop
on wet pavement as measured under
controlled conditions on specified government test surfaces of asphalt
and concrete.
A tire marked C may have poor traction performance.
Warning: The traction grade assigned
to this tire is based on braking
(straight-ahead) traction tests and does not include cornering (turning)
traction.
Temperature - A, B, C
The temperature grades are A (the highest), B, and C, representing the
tire’s resistance to the generation of heat and its ability to 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 to 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 test wheel than the minimum required by
law.
Warning: The temperature grade for this 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 heat
buildup and possible tire failure.
Those grades are molded on the sidewalls of passenger car tires.
312
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c
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Downloaded from www.Manualslib.com manuals search engine 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 standards and have been approved for use
on General Motors vehicles. All passenger type (P Metric) tires must
conform to Federal safety requirements
in addition to these grades.
Wheel Alignment and Tire Balance
The wheels on your vehicle were aligned and balanced carefully at the
factory to give you the longest tire
life and best overall performance.
In most cases,
you will not need to have your wheels aligned again.
However,
if you notice unusual tire wear or your vehicle pulling one way
or the other, the alignment may need to be reset. If you notice your
vehicle vibrating when driving on a smooth road, your wheels may need
to be rebalanced.
meel Replacement
Replace any wheel that is bent, cracked or badly rusted. If wheel nuts
keep coming loose, the wheel, wheel bolts,
and wheel nuts should be
replaced. If the wheel leaks air out, replace it (except some aluminum
wheels, which can sometimes be repaired). See your Cadillac dealer if any
of these conditions exist.
Your dealer
will know the kind of wheel you need.
Each new wheel should have the same load carrying capacity, diameter,
width, offset, and be mounted the same way as the one it replaces.
If you need to replace any of your wheels, wheel bolts, or wheel nuts, replace
them only with new
GM original equipment parts. This way, you will be sure
to have the right wheel, wheel bolts, and wheel nuts for your Ca\
dillac model.
A CAUTION
Using the wrong replacement wheels, wheel bolts, or wheel nuts \
on your vehicle can be dangerous. It could affect the
braking
and handling of your vehicle, make your tires lose air and make
you lose control. You could have a collision in which you or
others could be injured. Always use the correct wheel, wheel
bolts, and wheel
nuts for replacement.
313

Downloaded from www.Manualslib.com manuals search engine ~ ~ ~~~~ Used Replacement Wheels
A
Putting a used wheel on your vehicle
is dangerous. You can’t
know how it’s been used or how many miles it’s been dri\
ven.
It
could fail suddenly and cause an accident. If you have to replace
a wheel use
a ge~ GM original equipment wheel.
Tire Chains
’ NOTICE:
314

Downloaded from www.Manualslib.com manuals search engine ALUMINUM WHEELS
Don’t use chrome polish on your aluminum wheels. Use wax after you
clean them.
Also, don’t use abrasive cleaners or cleaning brushes on them
-- you could damage the protective coating.
WEATHERSTMPS
c
These are places where glass or metal meets rubber. Silicone grease there
will make them last longer, seal better, and not squeak. Apply silicone
grease
with a clean cloth at least every six months.
SHEET METAL DAlMAGE
If your vehicle is damaged and requires sheet metal repair or
replacement, make sure the body repair shop applies anti-corrosion
material to the parts repaired or replaced to restore corrosion protection.
FOREIGNIMATERUL,
Calcium chloride and other salts, ice melting agents, road oil and tar, tree
sap, bird droppings, chemicals from industrial chimneys, and other
foreign matter can damage your vehicle’s finish
if they remain on painted
surfaces.
Use cleaners that are marked safe for painted surfaces for these
stains.
322

Downloaded from www.Manualslib.com manuals search engine This transaxle is the first of a new generation of “SMART” transmissions.
The computer which controls the electronic shift solenoids adapts to
changing environments while you drive. This provides consistent high
quality shifts under all conditions. Communication between the engine
and transaxle through this computer controls engine output during
activation
of torque management or traction control. Smooth shifting is
ensured by design. Hydraulic accumulators control shift pressures and all
shifts are made to free wheeling elements.
The 4T80E uses a
dry sump lubrication system with a scavenger pump.
This unique feature enables the transaxlc to maintain itdcqlriltt!
pressurized oil supply during all mancl~vcr\.
340

Downloaded from www.Manualslib.com manuals search engine Front Suspension
Your fully independent front suspension is a combination strut and sp~
design. The frame is isolated from the body with six rubber mounts. -ing
Rubber bushings are used at the lower control arm pivots. The upper
end
of the strut is isolated by a rubber mount which contains a bearing to
allow for wheel turning. The Road Sensing Suspension
on the STS and
the Speed Sensing Suspension on Seville
will automatically controls the
damping rate
of the struts.
The lower end
of the steering knuckle pivots on a ball joint riveted to the
control arm. The ball joint is connected to the steering knuckle with a
castellated nut and cotter pin.
342

Downloaded from www.Manualslib.com manuals search engine ShortlLong Arm Suspension (SLA)
r
Your vehicle uses an independent shortfiong arm rear suspension. All the
rear suspension components are mounted
on a suspension support which
is attached to the
body at four points and is fully isolated with bushings
and insulators to minimize road noise. Each rear wheel is connected to
the suspension support through the suspension knuckle using an upper
and lower control arm and toe link.
The control arms and toe link are attached to the suspension support on
the inboard side, and to a suspension knuckle on the outboard side. The
hub and bearing assembly is mounted to the knuckle and is a single, non-
serviceable unit which eliminates the need for wheel bearing adjustment.
The load leveling
(ELC) shock absorbers are attached to the lower
control arm, with the upper end
of the shock attached to the suspension
support.
The springs are held in position between the lower control arms
and a pocket in the suspension support.
The suspension system also incorporates
a new damping system now as
Road Sensing Suspension on the
STS and Speed Sensing suspension on
343

Downloaded from www.Manualslib.com manuals search engine The power rack and pinion steering system has a rotary spool valve which
directs hydraulic fluid coming from the power steering pump to one side
or the other side
of the rack piston. The integral rack piston is attached to
the rack. The rack piston converts hydraulic pressure to a linear force
which moves the rack left or right. The force is then transmitted through
the inner and outer tie rods to the steering knuckles, which turn the
wheels
If hydraulic assist
is not available, manual control is maintained. However
under these conditions more steering effort is required.
4.6 LITER NORTHSTAR ENGINE
Displacement ............................... .4.6L (279 cu.in.)
No. of Cylinders ................ 32-valve DOHC 8 - 90 Degree V
Power (Acc.
to SAE 51349) ............... 295 (bhp @ 6000 rpm
..................................... 220 (kW @ 6000rpm
Torque (ACC. to
SAE 51349) ............ 290 (lbs. ft. @ 4400 rpm
Bore ........................................ 93mm (3.66 in.)
Stroke
...................................... .84mm (3.31in.)
Compression Ratio
................................... 10.3:l
Cylinder Heads ............................... Cast Aluminum
Intake Manifold
........................ Die Cast Magnesium /
........................... Thermoplastic Air Induction nbes
Valve System
................... Direct Acting Hydraulic Tappets
Intake Valve
................................. 33mm (1.29 in.)
Exhaust Valve
................................ 29mm (1.14 in.)
Pistons
...................................... Cast Aluminum
Firing Order
.................................. 1-2-7-3-4-5-6-8
Left Bank
.......................................... 2-4-6-8
Right Bank
......................................... 1-3-5-7
Camshaft
................... Induction Hardened Cast Grey Iron
Drive Type
........ Single Row / Staged Drive 8 mm Roller Chain
Main Bearings
......................................... Five
1
1 .................................... 393 (Ndm @ 4400 rpm
Cylinder Block
...... Die Cast Aluminum with Iron Cylinder Bores
345

Downloaded from www.Manualslib.com manuals search engine FLUID CAPACITIES
Transaxle (4T6OE) .............................. 20 pts. (9.5 L)
Transaxle (4T80E)
.............................. 30 pts. (14 L)
Engine Oil (4.9 L)
............................ 5 quarts (4.7 L)
With Filter Change ........................... 5.5 qts (5.2 L)
Engine Oil (4.6 L)
.............................. 6.5 qts (6.2 L)
With Filter Change ............................ 7 qts (6.6 L)
Engine Cooling System
........................ 12.3 qts (1 1.7 L)
Fuel Tank .................................. 20 gallons (76 L)
Power Steering .............................. 1.3 quarts (1.2 L)
Windshield Washer Reservoir .................. 4.2 quarts (4.1 L)
TIGHTEN TORQUE
Spark Plugs (4.9 L) ........................ .20 Nqm (15 lbs. ft.)
Spark Plugs (4.6
L) ......................... 15 Nom (11 lbs. ft.)
Oil Pan Drain Plug (4.9 L)
................... 30N-m (22 Ibs. ft.)
Oil Pan Drain Plug (4.6 L) ................... 20N.m (15 lbs. ft.)
KEHICLE DIMENSIONS
Seville/STS
Shipping Weight .......................... 3595 lbs. (1630.5 kg)
Shipping Weight
(STS) .................... 3807 lbs. (1726.8 kg)
Wheel Base
................................ 111 in. (2819 mm)
Length .................................. .203.9 in. (5179 mm)
Height ................................... .54.0 in. (1371 mm)
Width.. .................................. .74.3 in. (1887 mm)
Front Tread ............................... .60.9 in. (1547 mm)
Rear Tread ............................... .60.9 in. (1547 mm)
349

Downloaded from www.Manualslib.com manuals search engine r
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SUBJECT INDEX
A
Acc (Ignition Key Position) ............................ 80
Accessory Power. Retained .......................... 327
Adding
Brake Fluid
..................................... 293
Electrical Equipment ............................. 326
Engine Coolant ....................... 240.245.283. 285
EngineOil ...................................... 271
Power Steering Fluid ............................. 288
Transaxle Fluid .................................. 281
Additives. Engine Oil ............................... 275
Adjustment. Brake ................................. 184
Adult Safety Belt Usage .. 1 ........................... 18
-Air Bag ............................................ 30
Aircleaner ....................................... 277
Air Cleaner Replace ................ See Maint . Book. p.22
Air Cleaner Filter Replacement ...................... 301
Air Conditioner .................................... 147
Air Outlets .................................... ._. .. 146
Air System ........................................ 146
Alarm. How To Turn Off Theft ......................... 77
Alcohol. Driving Under The Influence Of .............. 175
Alcohol in Gasoline ................................. 263
Aluminum Wheels. Cleaning ......................... 322
AMAX@ .......................................... 154
AM Radio Reception ............................... 153
AM Stereo Radio Reception ......................... 154
Antifreeze ..................................... 237. 245
Anti-Lock Brakes .................................. 181
Anti-Lock Brake System Warning Light ............. 129. 181
Anti-Theft Tips ..................................... 75
Appearance Care ................................... 315
Arm. Wearing A Safety Belt Under Your ................ 28
Ashtrays .......................................... 121
Astroroof .......................................... 119
Automatic Air Conditioning System ................... 147
Automatic Door Lock ................................ 68
Automatic Overdrive ................................. 86
Antenna. Cleaning Radio .-. .. _ ........................ 164
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