1993 CADILLAC ELDORADO air condition

Downloaded from www.Manualslib.com manuals search engine you just open the hood. Stay away from the engine if you see or '.:,
hear steam coming from it. Just turn it off and get everyone '-i::::skT- -.
away from the vehicle until it cools down. Wait until there is no ;'-?
&
. f,..: c
<.-+,.<-
in it :can catch fire. You.0.r otherscould-be badly burned. Stop
your engine if it overheats,-an.d get out of the vehicle until the
&e .--a- 73;:F-;-*g5.e: I -.=..;*.-- -. ** - . . - . .- I *+ *b'.bT .- I -'; . .= 0 -.*.;-I .> -
, ;L =&:?. -:;? ---c--= L.' .?. .. .*. -- %. .;> ~ .:,..-::. . .. * ;-; :-?- . : .-% . - ' - . &e--? A.iJ.- .:-,:, .. . .... -. . .: -2-,
1
NOTICh:
If your engine catches fire because you keep drivmg with no
coolant, your vehicle can be badly damaged. The costly repairs
lwuld not be covered
by your warranty.
I - ,. .
If No Steam Is Coming From Your Engine:
If you get the overheat warning but see or hear no steam, the problem
may not be too serious. Sometimes the engine can get a little too hot
when you:
e Climb a long hill on a hot day.
Stop after high speed driving.
e Idle for long periods in traffic.
Tow a trailer.
If you get the overheat warning with no sign
of steam, try this for a
minute or
so:
1. Turn off your air conditioner.
23 1

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.
meel 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.
Wheel 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
Cadillac model.
312

Downloaded from www.Manualslib.com manuals search engine CHEMICAL PMNT SPOTTING
Some weather and atmospheric conditions can create a chemical fallout.
Airborne pollutants can fall upon and attack painted surfaces on your
vehicle. This damage can take
two forms: blotchy, ringlet-shaped
discolorations, and small irregular dark spots etched into the \
paint surface.
Although no defect in the paint job causes this, Cadillac will repair, at no
charge to the owner, the surfaces
of new vehicles damaged by this fallout
condition within
12 months or 12,000 miles (20 000 km) of purchase,
whichever
comes first.
323

Downloaded from www.Manualslib.com manuals search engine The Northstar engine is designed to require less maintenance than many
other
DOHC V-8 engines. Engine systems are designed to remind the
driver when service is required. An oil life index indicator monitors
ongoing operating conditions and reminds the driver when
an oil change
is needed. A low coolant warning message keeps track
of the level of this
vital fluid. Direct acting hydraulic tappets provide maintenance free zero
lash operation
of the 32 valves from idle to the 6500 rpm redline. The
camshafts are driven by a
two stage roller chain assembly which is
designed to provide quiet maintenance free operation. Platinum tipped
spark plugs increase the replacement interval to
100,000 miles.
The four valve per cylinder design provides more
efficient engine
breathing which results
in higher power than comparable two valve
engines. The central location
of each spark plug ensures a fast and
complete burning
of the fuel/air mixture. The induction system uses
smooth thermoplastic tubes to channel air into the cylinders. The
smoothness
of the tubes is equivalent to the elaborate port polishing
methods used for race car engines. Careful design using the shape and
length
of the tubes boosts horsepower by using sonic pressure waves
created by the motion
of the inlet valves to increase the amount of air
entering each cylinder.
The Northstar engine
is also designed to be very durable. The aluminum
block has cast-in-place iron cylinder liners for greater wear resistance.
High strength forged steel connecting rods support the free floating \
piston pins
in bronze bushings for superior high speed performance. The
fillits
of the nodular iron crankshaft undergo a high pressure compression
rolling operation to improve their resistance to fatigue.
Quiet operation
is enhanced by the use of special materials and designs.
The front cover of the engine is stamped from laminated steel which
damps
out noise. Special cam cover gasket seals isolate valve train
operation. The
fuel injectors are placed inside the induction system
housing
to eliminate the clicking noise which is common to other fuel
injected engines.
The Northstar engine is designed
to provide years of efficient, reliable,
satisfying operation. We think
it is also just plain fun to drive.
337

Downloaded from www.Manualslib.com manuals search engine n
r L
I r
r
r
T
F-l
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
Torque
(ACC. to SAE 51349) ............ 290 (lbs. ft. @ 4400 rpm
..................................... 393 (Nm @ 4400 rpm
Power (ACC.
to SAE 51349) ............... 270 (bhp @ 6000 rpm
Torque (ACC.
to SAE 51349) ............ 207 (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 Tubes
Valve System
................... Direct Acting Hydraulic Tappets
Exhaust Valve
................................ 29mm (1.14 in.)
Firing Order
.................................. 1-2-7-3-4-5-6-8
Engine Code 9
..................................... 220 (kW 1 @ 6000 rpm
..................................... 204(kW 1 @ 6000rpm
..................................... 300 (N-m 1 @ 4400 rpm
1
Engine Code Y:
Cylinder Block ...... Die Cast Aluminum with Iron Cylinder Bores
Intake Valve
.................................. 33mm (1.29 in.)
Pistons
...................................... Cast Aluminum
Left Bank
.......................................... 2-4-6-8
345

Downloaded from www.Manualslib.com manuals search engine EMISSION CONTROL SYSTEMS
Exhaust Gas Recirculation .................... Controlled Flow
Catalytic Converter ......................... Ceramic Monolith
Evaporative Emission Control
................ Charcoal Canister
Crankcase Emission Control
....................... PCV Valve
Electronic System
..................... Open and Closed Loop
-
L.
EmUST SYSTEM
Type ............................... Single with Crossover Pipe
Muffler
.................................. One-Reverse Flow
Resonator ............................................ None
Exhaust Pipe
.................................. Stainless Steel
Intermediate Pipe
............................. Stainless Steel
Tail Pipe
..................................... Stainless Steel
ELECTMCXL, SYSTEM
Voltage ................................................ 12
Ground
........................................... Negative
Generator (4.9
L) ................................... 140 Amp
Generator (4.6
L) ................................... 144 Amp
AIR CONDITIONING SYSTEM
Refrigerant-12 (R-12) ...................... .2.375 lbs. (1.08 kg)
Not all air conditioning refrigerants are the
same. If the air conditioning
system in your vehicle needs refrigerant, be sure the proper refrigerant is
used.
If you’re not sure ask your Cadillac Dealership.
c1
I.
348

Downloaded from www.Manualslib.com manuals search engine r- i
I4
r
I-
r
SERVICE PUBLICATIONS
Informationonhow to obtain Produet Service Publ&iti~, subscriptions, Indexes and
summaries as describedbelow is applicable only in the fifty US. states (and the District
fo Columbia) and only for cars
and light lrucks with GVWR less than 10,OOO pounds
(4 536 kg).
In Canada, information pertaining to Product Service Bulletins and Indexes can be
obtained by writing to: General Motors of Canada Limited, Service Publications
Department,
1908 Colonel Sam Drive Oshawa, Ontario L1H 8P7.
Cadillac regularly sends its dealers useful service bulletins about Cadillac products.
Cadillac monitors product performance in the field. We
then prepare bulletins for
servicing our products better, Now, you can get these bulletins too.
Bulletins cover various subjects. Some pertain to the proper use and care of your
vehicle. Some describe costly repairs. Others describe inexpensiv\
e repairs which,
if
done on time with the latest parts, may avoid future costly repairs. Some bulletins tell a
technician how
to repair a new or unexpected condition. Others describe a quicker way
to
fix your vehicle. They can help a technician service your vehicle better.
Most bulletins apply to conditions affecting a small number of vehicles Your Cadillac
dealership
or a qualified technician may have to determine if a specific bulletin applies
to your vehicle.
You can subscribe
to all Cadillac bulletins. This way you’ll get them as they come out.
You can wait a while and get an index to
the bulletins. You can also get individual
bulletins. However, you’ll need the index to identify
them.
Subscriptions
You can subscribe to all Cadillac Product Service Publications (PSPs). This will include
bulletins for
dl cars sold by Cadillac and will not be limited to PSPs applicable to any
particular model. When you buy a subscription, you will receive the PSPs in periodic
mailings shortly aftex they come out. A subscription costs $100.00 U.S. ($110.00
including a special binder) and it entitles you to all PSPs published by Cadillac during
that model year. You can purchases a subscription by sending a\
check or money order
to
Cadillac Service Publications, Post Office Box 07130, Detroit, Michigan 48027, along
with
the order form located on page 15. Your may get additions subscription ordering
forms by calling the toll-free number shown in this section or your can find them at
participating dealerships.
Individual PSPs
If you don’t want to buy all the PSPs issued by Cadillac for all models in the mo\
del year,
you can buy individual PSPs such
as those which may pertain to a particular model. To
do this, you will fit need to see our index of PSPs. It provides a variety of information.
Here’s what you’ll
find in the index and how you can get one.

Downloaded from www.Manualslib.com manuals search engine n
. . b. ... .
I
I
SUBJECT INDEX
r
r
r
r
k
A
Acc (Ignition Key Position) ........................... 76
Accessory Power. Retained .......................... 327
Electrical Equipment ............................. 326
Engine Coolant .......................... 234.242.282,
Engine Oil ...................................... 269
Power Steering Fluid ............................. 286
Transaxle Fluid .................................. 279
Additives. Engine Oil ............................... 273
Adjustment. Brake ................................. 182
Adult Safety Belt Usage .............................. 19
Air Bag ............................................ 27
Air Cleaner ....................................... 275
Air Cleaner Replace ................ See Maint . Book. p.22
Air Cleaner Filter Replacement ...................... 301
Air Conditioner .................................... 144
Air Outlets ........................................ 143
Air System ........................................ 143
Alarm. How To Turn Off Theft ........................ 73
Alcohol. Driving Under The Influence Of .............. 173
AlcoholinGasoline ................................. 260
Aluminum Wheels. Cleaning ......................... 321
AMAX@ .......................................... 151
AM Radio Reception ............................... 151
AM Stereo Radio Reception ......................... 151
Antenna. Cleaning Radio ............................ 161
Antifreeze ..................................... 234. 242
Anti-Lock Brakes .................................. 179
Anti-Lock Brake System Warning Light ................ 125
Anti-Theft Tips ..................................... 72
Appearance Care ................................... 314
Adding
Brake Fluid
..................................... 291
Arm. Wearing A Safety Belt Under Your ................ 25
Ashtrays ................... i ...................... 117
Astroroof ......................................... 115
Automatic Air Conditioning System ................... 144
Automatic Door Lock ................................ 66
Automatic Overdrive ................................ 82
r" b . I
1
.. ~