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that  all  wheel  nuts are  properly  tightened.  See  “Wheel  Nut  Torque”  in  the 
Index. 
men It’s Time  for New Tires 
One way to  tell  when 
it’s  time  for new  tires  is 
to  check 
the treadwear 
indicators,  which 
will 
appear  when  your  tires 
have 
only,2/32 inch 
(1.6 mm) or less of 
tread  remaining. 
Youneed  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. 
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4T80-E Transaxle 
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The 4T80-E transaxle has been  designed  to complement  the  output 
characteristics 
of the  Northstar  engine. The innovative  design 
incorporates  several features  which enhance its  overall operation. 
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 transaxle  to maintain  adequate 
pressurized  oil  supply during all  maneuvers. 
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Spirited performance with  very  efficient  cruising  operation are provided 
by  the  combination 
of 4 speed  overdrive  gearing,  a  torque clutch,  with a - 
3.71:l  final  drive  on the ETC and  a  viscous  torque converter  clutch  with  a a 
3.1 1:l final  drive  ratio on the Eldorado. 
Front Suspension 
.. 
Your  fully  independent  front suspension  is a combination  strut and spring 
design.  The frame  is  isolated  from  the body  with 
six rubber  mounts. 
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  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. 
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The power  rack and pinion..stee&g .gstem--h,w, a ,rotaq-  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  rack4eft  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  conirol,  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) ................ 270 (b,hp) @ 5600  rpm 
Torque  (ACC.  to 
SAE 51349) ............ 300  (lbs. ft.) @? 4000 rpm 
ELDORADO 
...................................... 204 (kW) @ 5600 rprn 
...................................... 407(N*m) @ 4OOOrpm 
ETC 
Power  (ACC.  to SAE 51349) ................ 295’(bhp) @ 6000 rpm 
Torque  (ACC.  to 
SAE 51349) ............ 290  (lbs. ft.) @? 440.0  rpm 
Bore 
........................................ 93mm.(3.66.in.) 
Stroke 
...................................... .84mm  (331in.) 
Compression  Ratio 
.................................... 10.3: 1 
Cylinder  Block ...... Die  Cast  Aluminum  with  Iron Cylinder  Bores 
Cylinder  Heads 
................................. Cast  Aluminum 
Intake  Manifold- 
............ Die Cast  Magnesium / Thermoplastic 
.......................................... Air  Induction  Tubes 
........................................ 220 (kW) @ 6000 rpm 
...................................... 393  (Nom) @ 4400 rpm 
Valve.  System ................... Direct  Acting  Hydraulic  Tappets 
Intake  Valve 
.................................. 33mm (1.29 in.). 
Fkhaust  Valve,. ................................ 29mm (1.14.h.) 
Pktons 
...................................... Cast  Aluminum 
Firing  Order 
.................................. 1-2-7-3-4-5-6-8 
Left Bank ........................................... 2-4-6-8 
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Power  Steering 
.............................. 1.3 quarts  (1.2 L) 
Windshield  Washer Reservoir .................. 4.2 quarts  (4.1 L) 
TIGHTEN TORQUE 
Spark Plugs  (4.6  L) ......................... 15 N-m (11 lbs. ft.) 
Oil Pan  Drain Plug (4.6 
L) ................... 20 N*m (15 lbs. ft.) 
VEHICLE  DIMENSIONS 
Eldorado/ETC 
Shipping Weight .......................... 3516  lbs.  (1594.7  kg) 
Shipping  Weight 
(ETC) ..................... .3695 lbs. (1679 kg) 
Wheel  Base 
................................ 108 in.  (2743 mm) 
Length .................................. .202.2 in.  (5135 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) 
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Steering  Wheel.  Tilt 
................................ 102 
Steering  Without  Power  Assist 
........................ 180 
Stereo  Sound Systems 
............................... 159 
Storage.  Center Console 
.............................. 76 
Stuck.  If  Your  Ignition  Key 
Is .......................... 84 
Stuck. 
If Car Is . In  Sand.  Mud.  Ice  Or Snow ............ 239 
Subscribing  to Cadillac  Prod 
. Sew . Pub ...... See Own . Assist . 
Sunglass  Compartment .............................. 125 
Supplemental Inflatable Restraint  (S.I.R.) 
............... 30 
Surge  Tank Pressure  Cap 
............................ 265 
Symbols  Used  On Your  Vehicle 
......................... 3 
Storing 
Your  Vehicle 
................................ 275 
T 
Table  Of  Contents ......... See Front  of Owner  Info . Manual 
Tachometer 
....................................... 137 
Taillight  Bulb  Replacement 
.......................... 280 
Tape  Player  Care 
................................... 167 
Temperature.  Engine.  Warning  Light 
.................. 137 
Theft 
.............................................. 79 
Theft  Deterrent  System 
.............................. 80 
Thermostat ........................................ 266 
Third Gear.  When 
To Use ............................ 91 
Tilt  Steering  Wheel 
................................. 102 
Time.  Setting  The 
.................................. 166 
Tire  Chains 
........................................ 298 
Tire.  Flat 
.......................................... 229 
Tire Pressure Inflation 
............................... 290 
Tire  Inspection  and Rotation 
......................... 292 
Tires 
.. Loading .................................... 287 
Tire  Quality  Grading 
................................ 294 
Tires 
............................................. 289 
Tires.  When  It’s  Time  For  New 
Tires .................. 293 
Torque  Lock  (Auto Transaxle) 
......................... 98 
Towing  Your  Vehicle 
................................ 217 
Tom Safety  Belts .................................... 65 
Towing  A  Trailer 
................................... 201 
Traction  Control System 
............................. 179 
Trademarks.  GM 
................................... 241 
Trailer  Towing 
..................................... 201 
Transaxle.  Automatic 
................................. 87 
Transaxle  Fluid 
.................................... 259 
Transaxle  Gear Positions 
............................. 87 
Transaxle  Service 
........................ See  Maint . Book 
Travel.  BrakePedal 
................................. 273 
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Wheel  Replacement 
............. 
Why  Safety  Belts Work ........... 
Window  Express  Down, Driver's  Side 
Windows,  Power 
................. 
Windshield  Cleaning  The 
................. 
Washer ....................... 
Washer Fluid .................. 
Wipers ....................... 
Wipers: If They Stop ........... 
Winter  Driving ................... 
Working  On Your  Vehicle ......... 
Worn  Tires ...................... 
Wrecker  Towing .................. 
Wheel Nut Torque ............... 
Why  Wear  Safety Belts? .......... 
Wiper  Blade Replacement ...... 
.................. 296 
.................. 237 
.................. 296 
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