1994 CADILLAC ELDORADO fuel

Downloaded from www.Manualslib.com manuals search engine i
NOTICE:
.. - , .., .. . **:. 7 ' . ..._ ^ . ,
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
0 Badwear
Bad handling
0 Bad fuel economy.
If your tires have too much air (overinflation), you can ger:
Unusual wear
Bad handling
Rough ride
0 Needless damage from road hazards.
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.
When to Check Check your tires once a month or more.
The Eldorado tire pressures are:
0 Front - 28 psi (190 Pa)
Rear - 26 psi (180 kPa)

Downloaded from www.Manualslib.com manuals search engine f? Any stone chips, fractures or deep scratches in the finish should be
repaired right away. Bare metal will corrode quickly and may develop
m into a major repair expense.
It Minor chips and scratches can be repaired with touch-up materials
available from your dealer or other service outlets. Larger areas of finish
- damage can be corrected in your dealer's body and paint shop.
L
r
r I
r
I r
:r
r
ir
307
UNDERBODYlMAlNTEANCE
Chemicals used for ice and snow removal and dust control can collect on
the underbody.
If these are not removed, accelerated corrosion (rust) can
occur on the underbody parts such as fuel lines, frame, floor pan, and
exhaust system even though they have corrosion protection.
At least every spring, flush these materials from the underbody with plain
water. Clean any areas where mud and other debris can collect. Dirt
packed in closed areas
of the frame should be loosened before being
flushed. Your dealer or an underbody vehicle washing system can do this
for you.
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.

Downloaded from www.Manualslib.com manuals search engine Y
r
r I
i
r
!r:
i E
,r
i 'E
L HDLP LO R HDLP LO L HDLP HI R HDLP HI ION 3 COOL'FAN TRANS
I FUSE CENTER IDENTIFICATION I
ENGINE COMPARTMENT FUSE BLOCK
DlSTR 20A
SIR 20A - IGNITION CONTROL MODULE
- DIAGNOSTIC/ENERGY RESERVE
MODULE (DERM)
- DUAL POLE ARMING SENSOR PCM (ION 1OA
- PASS-Key@ DECODER MODULE INJ 10A
- POWERTRAIN CONTROL MODULE (PCM)
- 1,4,6, AND 7 FUEL INJECTORS
- 2.3.5. AND 8 FUEL INJECTORS INJ 1OA
ION
1 iOA - A/C REFRIGERANT PRESSURE SWITCH - TRANSAXLE RANGE SWITCH - STOP/BTSI/CRUISE BRAKE SWITCH - INSTRUMENT PANEL'CLUSTER - KEYLESS ENTRY MODULE - DIAGNOSTlCfENERGY RESERVE MODULE
- PERM2 ORN RING LIGHTS - TURN/HAZARD SWITCH ASSY. - CHIME MODULE - HEADLIGHT SWITCH - TWILIGHT SENTINEUDRL MODULE
- FUELPUMP - OIL PRESSURE SWITCH - POWERTRAIN CONTROL MODULE IPCMI
FUEL PUMP 20A
PCM (BAT) 1OA
RTD
, AT) 20A - RgAD SENSING SUSPENSION (RSS) MODUL A/C COMP 1OA
- POWERTRAIN CONTROL MODULE (PCM)
- A/C COMPRESSOR CLUTCH HDLPS 3OA
.~
- HEADLIGHT DIMMER SWITCH - HEADLIGHT RELAY "D (ENGINE COMF!
- DRL HEADLIGHT RELAY "E" (WITH DAYTIME
- POWERS C13 MICRO RELAY CENTER)
RUNNING LIGHTS)
E
STOP LP 2OA - STOP/BTSI/CRUISE SWITCH - STOPUGHT SWITCH CAPACITOR TURNIHAZ 20A - HAZARD FLASHER - TURN FLASHER RELAY - TURN FLASHER MODULE DRL 1 OA (CANADA) - DAV~ME RUNNI'NG LIGHTS (CANADA) ~ ~~
DRL 1 OA (CANADA)
HTD
W/S 1OA
L HDLP LO 1OA
- LEFT AND RIGHT LO BEAM HEADLAMP
- HEATED WINDSHIELD CONTROL MODULE
- LEFT LO BEAM HEADLAMP R HDLP LO 10A
L HDLP HI 1OA - RIGHT LO BEAM HEADLAMP
- LEFT HI BEAM HEADLAMP R HDLP HI 1OA
IGN
3 10A - RIGHT HI BEAM HEADLAMP
- REAR DEFOGGERRELAY - ELECTRONIC LEVEL CONTROL IELCI - HEATED WINDSHIELD - HEATER AND A/C PROGRAMMER - CRUISE CONTROL
..
COOLING FAN 1OA - MENDED TRAVEL BRAKE SWITCH - POWERTRAIN CONTROL MO'DULE (PCM) - COOLING FAN RELAYS 1,2, AND 3 - FRONT AND REAR HEATED OXYGEN SENSOR TRANSIECS 1 OA - OVERSPEED ALERT MODULE (=PORT) - POWER STEERING PRESSURE SWITCH - EXHAUST GAS REClRCULAilON (EGR) VALVE - TRANSAXLE SHIFT SOLENOIDS A & B - EVAPORATIVE EMISSION CONTROL
SOLENOID ~~
- POWERTRAIN CONTROL MODULE (PCM) - TORQUE CONVERTER CLUTCH SOLENOID - TCC BRAKESWlTCH
313

Downloaded from www.Manualslib.com manuals search engine I 30AC.B. I
A
I I 60A
E
I 60A I
I I 50A
4
I 40A 1
n
LH MAXI8 FUSE BLOCK
FUSE 1 (50 AMP) (STRG 1-2)
- RETAINED ACCESSORY POWER (RADIO/WIPERS)
- STARTER
- TRUNK COMF FUSES 81 1 AND 813
FUSE 2 (60 AMP) (BODY)
- ENGINE COMI? B11
- ROAD SENSING SUSPENSION
- FOG LIGHTS
- TRUNK COMF! FUSE C1, C3, C5, C7, C9, AND
c11
- TRUNK COMF! FUSE C13 (EXPORT)
- REAR FOG LIGHT (EXPORT)
CIRCUIT BREAKER 3 (30 AMP) (SEAT)
- LEFT AND RIGHT POWER SEAT SWITCHES
- LEFT AND RIGHT LUMBAR RELAYS
- POWER DOOR LOCKS
- KEYLESS ENTRY MODULE
- HORNS
- FUEL DOOR RELEASE SWITCH - TRUNK RELEASE SWITCH
FUSE 4 (30 AMP) (IPC)
- POWERTRAIN CONTROL MODULE (PCM)
- ELECTRONIC CLIMATE CONTROL
- RAP/ILLUMINATED ENTRY MODULE
- INSTRUMENT PANEL CLUSTER
- PASS-Key@ DECODER MODULE
- THEFT DETERRENT
FUSE 5 (SO AMP) (HVAC)
- LEFT AND RIGHT HEATED SEATS
- ELECTRONIC LEVEL CONTROL (ELC)
- TRUNK LID PULL DOWN
- POWER ANTENNA
- REAR DEFOGGER
- LEFT AND RIGHT MIRROR DEFOGGERS
FUSE 6 (60 AMP) (STRG 3)
- RETAINED ACCESSORY POWER
(SUNROOF/POWER WINDOWS)
- ENGINE COMF! FUSES Dl, D3, D5
- TRUNK COMF! FUSES Al, A3, A5, Ai', A9
RH MAXI8 FUSE BLOCK
CIRCUIT BREAKER 1 (30 AMP) (DAB)
- RETAINED ACCESSORY POWER (RAP)
(SUNROOF/POWER WINDOWS)
FUSE 2 (30 AMP) (RADIO)
- DELCO-BOSE@ SPEAKERS
- RADIO CONTROL HEAD
- REMOTE RADIO RECEIVER
FUSE 3 (50 AMP) (COOL)
FUSE
4 (40 AMP) HVAC BLOWER (BLOWER)
- COOLING FANS
- HVAC POWER MOTOR
- A/C COMPRESSOR
FUSE 5 (50 AMP) ABS (BRAKES)
FUSE
6 (50 AMP) (LAMPS)
- BRAKE PRESSURE MODULATOR VALVE
- TURN FLASHER MODULE
- HAZARD FLASHER
- STOP/BTSI/CRUISE BRAKE SWITCH
- PARKING LIGHTS
- DAY TIME RUNNING LIGHTS (CANADA)
- ENGINE COME FUSES B1,W AND B5
- TRUNK COMF! FUSES Dl 1, Dl3
314

Downloaded from www.Manualslib.com manuals search engine WIPER THEFT HVAC/DABIE
REAR FOG FOG LP CNSL FAN CIGAR BODY
2 BODY 1 READ LP
LPRKLP
R PRKLP RAD (BAT) ANTBRKPLD ELC R HTD SEAT L HTD SEAT
~
TRUNK COMPARTMENT FUSE BLOCK
- RAP/IUMINATED ENTRY MODULE CRANK (10 AMP)
- DIAGNOSTIC/ENERGY RESERVE
- TRANSAXLE RANGE SWITCH (NSSS) MODULE (DERM) ION 1 (10 AMP .,
- FUEL
LEV& SENSOR - ELECTROCHROMIC MIRROR - RAP/ILWMINATED ENTRY MODULE - THEFT DETERRENT MODULE - KEYLESS ENTRY MODULE - TURN FLASHER RELAY-~F" TRUNK cc MICRO RELAY CENTER )MF!
MODI
JLE
- PASS-Key@ DECODER MODULE - THEFT DETERRENT RELAY
"D" (TRUNK COME
- THEFT DETERRENT MODULE
- HEATER AND NC PROGRAMMER HVAC/DABIE (10 AMP)
- RAP/ILLUMINATED ENTRY MODULE RELAY CENTER) REAR FOG (10 AMP)
FOG
LP (10 AMP)
CNSL FAN (1OAMP)
~~ ~~~
- REAR FOG LIGHT RELAY A (EXPORT)
- FOG LIGHT RELAYS A AND F
- REAR BLOWER MOTOR - REAR BLOWER RELAY .MODULE
CIGAR (20 AMP) - LTAND
RT REAR CIGARETTE LIGHTERS (SNILLE ONLY) - FRONT CIGARETTE LIGHTER - CHIME MODULE
- POWER MdOR SWITCH BODY 2 (10 AMP
- RAPRELAY - LOCK-OUT INHIBIT RELAY "B" (TRUNK COMF! 1 MICRO
- PANEL LIGHTS INHIBIT RELAY "F" (TRUNK COMF! 3 MICRO
- COURTESY LIGHTS RELAY "C" (TRUNK COMF! 2 MICRO
- RAP RELAY "E" (TRUNK COMF! 2 MICRO RELAY CENTER) - KEYLESS ENTRY MODULE - TRUNKLAMP - SEAT BELT RETRACTOR SOLENOIDS (ELDORADO ONLY) RELAY CENTER)
RELAY CENTER) (EXPORT)
RELAY CENTER)
- FRONT Dook LOCK swmm BODY 1 (10 AMP
- GLOVE BOX LAMP - LT AND RT FOOTWELL COURTESY LAMPS - HEADLIGHT SWITCH
- LTAN- ___ L PRK LP (10 AMP - LT REAR TAIdToPnURN LAMPS - LT FRONT PARWURN LAMPS - FRONT AND REAR I .EFT SIDE MARKER LAMPS - RADIO CONTRC - HEADLlGl - INSTRUML ... . . R PRK LP (10 AMP - RT TAlusToP !URN LAMPS - AT FRONT AND REAR SIDE MARKER LAMPS - RT FRONT PARK AND TURN LAMPS
- RAE RAD (BA
ANT/TRl
- TRU - POWER7
~VlVl~ WM. : PLATE LAMPS
;% (10 AMP)
c PLD (20 AMP) NK LID PULL DOWN MOTOR WTENNA
{NIC LEVEL CONTROL (ELC)
% SEAT
316

Downloaded from www.Manualslib.com manuals search engine Rear Fog/Back-Up Light (Export) ...................... P21/5W
Side Marker Lights
..................................... 194
Stop/Tail/Turn Signal
................................ 2057 NA
Stop/Tail/Turn Signal (Export) ......................... P21/5W
Front Fender
Side Turn Signal (Export)
.............. 2CNPHW
Trunk Light
.........................
Underhood Light ....................
Vanity Mirror Illumination ............
NORlMAL M4INTENNrE
PARTS
Air Cleaner Element .................
Battery .............................
Fuel Filter Element ..................
Engine Oil Filter ....................
PCVValve .........................
Spark Plugs .........................
Serpentine Drive Belt ................
Surge Tank Cap .....................
Thermostat ..........................
Upper Radiator Hose ................
Lower Radiator Hose ................
Trans Screen Rt. Scavenger ...........
Trans Screen Lt. Scavenger ............
Trans Pan Screws (16) ................
Trans Pan Gasket ....................
..................................
..................................
..................................
..................................
..................................
..................................
..................................
..................................
.................. 1003
................... 561
................... 124
REPLACEMENT
........ AC Type S1096C
.............. 25096932
................ 78A-72
............... 1981590
.............. 25121468
.............. 25014377
.............. 06487779
............... 5614236
............... 3530814
......... AC Type RC 33
............... 6410665
......... ACType 131-66
............... 3531407
............... 3521504
............... 3521505
............... 8679416
............... 8680700
............... 8682650
............... 8681197
........ AC Type GF-580
......... AC Type PF-58'
....... AC Type CV-774C
......... AC Type 41-900
318

Downloaded from www.Manualslib.com manuals search engine SPECIFICATIONS
4.6L 32 Valve (DOHC) Northstar Engine
r
t-
The engine is a 4.6 liter (279 cu.in.1 90° V-8 featuring Dual Overhead
Cam (DOHC),
32 valve, and sequential port fuel injection.. This design
results in a powerful, refined engine which is wellmited to even the most
demanding driving conditions..
Engine weight is minimized by the use of low mass alloy materials. The
crankcase, cylinder heads and oil pan are made from cast aluminum. The
induction system housing, cam covers and
oil filter adapter are cast
magnesium.. The reduced engine mass enhances.vehicle handling and.
responsiveness.
!- I
319

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 connecting rods support the free floating piston pins in
bronze bushings for superior high speed performance. The fillets
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.
7
320