Cadillac for 1989 offered six car lines powered by V-8 engines. The Cimarron was not produced for 1989. New model highlights included longer and restyled de Ville and Fleetwood models, a more powerful Allanté and refinements in the Seville, Eldorado and Brougham. The Seville was now available in a limited edition Seville Touring Sedan (STS) form. This new model was equipped with a retuned European-feel suspension package for more precise steering control and a firmer feel of the road. The limited production Fleetwood Sixty Sedan had new front leather seats created by Italian designer Giorgelto Giugiaro that featured a split frame design with triple lumbar support. The Allanté received a substantial power boost to 200 horsepower that made it capable of 0-60 acceleration in less than 8.5 seconds. New comfort and convenience features available in 1989 included an express-down driver's window, electrochromic inside rearview mirror, ElectriClear windshield and an oil life indicator.
Cadillac's 4.5 liter digitally fuel-injected V-8 was the powerplant for the de Ville, Fleetwood, Seville, and Eldorado models. Cadillac claimed its cars, capable of 0-60 mph in less than 10 seconds, were the fastest domestically produced luxury cars available.
Model | Wheelbase | Overall length | Height | Width | Front Tread | Rear Tread | Standard Tires |
Coupe de Ville | 110.8 in. | 202.3 in | 55.0 in. | 72.5 in. | 60.3 in. | 59.8 in. | Michelin P205/70R15 |
Fleetwood coupe | 110.8 in. | 202.3 in | 55.0 in. | 72.5 in. | 60.3 in. | 59.8 in. | Michelin P205/70R15 |
Sedan de Ville | 113.8 in. | 205.3 in | 55.0 in. | 72.5 in. | 60.3 in. | 59.8 in. | Michelin P205/70R15 |
Fleetwood sedan | 113.8 in. | 205.3 in | 55.0 in. | 72.5 in. | 60.3 in. | 59.8 in. | Michelin P205/70R15 |
Sixty Special | 113.8 in. | 205.3 in | 55.0 in. | 72.5 in. | 60.3 in. | 59.8 in. | Michelin P205/70R15 |
Seville | 108.0 in. | 191.4 in | 53.7 in. | 71.7 in. | 59.9 in. | 59.9 in. | Michelin P205/70R15 |
Seville Touring | 108.0 in. | 191.4 in | 53.7 in. | 71.7 in. | 59.9 in. | 59.9 in. | Goodyear Eagle GT+4 P215/65R15 |
Eldorado | 108.0 in. | 190.8 in | 53.7 in. | 70.9 in. | 59.9 in. | 59.9 in. | Michelin P205/70R15 |
Allanté | 99.4 in. | 178.6 in | 52.2 in. | 73.5 in. | 60.4 in | 60.4 in. | Goodyear Eagle VL P225/55VR16 |
Brougham | 121.5 in. | 221 in | 56.7 in. | 76.5 in. | 61.7 in. | 60.7 in. | Michelin P225/75R15 |
Engine | V8 273cc (4.1L) | V8 307cc (5.0L) |
Crankcase | 5 qt | 4 qt |
Crankcase with new filter | 5 qt | 5 |
AutomaticTransmission after draining | 13 pt | 10.6 pt |
Drive Axle | NA | 4.25 pt |
Fuel tank | 18.8 gal(US) | 25.0 gal(US) |
Cooling with heater | 12.1 qt | 15.2 qt |
Cooling with A/C | 12.1 qt | 15.2 qt |
Heavy duty Cooling | NA | NA |
Engine V.I.N Code | 5 | Y |
Engine type | V8-273cc (4.5L) | V8-307cc (5.0L) |
Fuel delivery | DFI | 4 bbl |
Manufacturer | Cadillac | Oldsmobile |
Original Spark plug | R44LTS6 | FR3LS6 |
Gap | 0.060 in. | 0.060 in. |
Distributor | Electronic | Electronic |
Ignition timing (BTDC) | See underhood sticker | See underhood sticker |
Intake valve opens (BTDC) | See underhood sticker | See underhood sticker |
Fuel pump pressure | 12-14 | 5½-6½ |
Idle speed | See underhood sticker | See underhood sticker |
Part # | 1101302 | 1101304 | 1101490 |
Field current @ 12 V | 4-4.5 | 4-4.5 | 4-4.5 |
Output | 94 amps | 94 amp | 120 amp |
Regulator | Solid state | Solid state | Solid state |
Volts @ 75° | 13.8-14.8 | 13.8-14.8 | 13.8-14.8 |
Engine V.I.N Code | 5 | Y |
Engine type | V8-273cc(4.5L) | V8-307cc(5.0L) |
Manufacturer | Cadillac | Oldsmobile |
Fuel delivery | DFI | 4 bbl |
Horsepower | 155@4200 | 140@3200 |
Torque | 240@2800 | 255@2000 |
Bore x Stoke | 3.622 x 3.307 | 3.800 x 3.385 |
Compression Ratio | 9.1:1 | 7.9:1 |
Oil pressure | 37 psi@1500 RPM | 30-45 psi@1500 RPM |
Engine type | V8-273cc(4.5L) | V8-307cc(5.0L) |
Main Brg Journal Dia. | 2.6776-2.6786 | 2.4988-2.4998 (No. 2, 3, 4, 5: 2.4985-2.4995) |
Main Brg Oil Clearance | 0.0016-0.0039 (No. 1: 0.0008-0.0031") | 0.0005-0.0021 |
Shaft End-play | 0.010-0.070 | 0.0035-0.0135 |
Thrust on No. | 3 | 3 |
Engine type | V8-273cc(4.5L) | V8-307cc(5.0L) |
Journal Dia. | 2.052-2.054 | 2.1238-2.1248 |
Oil Clearance | 0.0005-0.0028 | 0.0004-0.0033 |
Side Clearance | 0.008-0.020 | 0.006-0.020 |
Engine type | V8-273cc(4.5L) | V8-307cc(5.0L) |
Piston-Bore Clearance | 0.0008 | 0.00075-0.00175 |
Ring Side Clearance: Top Compression | 0.0016-0.0037 | 0.0018-0.0038 |
Ring Side Clearance: Bottom Compression | 0.0016-0.0037 | 0.0018-0.0038 |
Ring Side Clearance: Oil Control | None (side sealing) | 0.001-0.005 |
Ring Gap: Top Compression | 0.015-0.024 | 0.009-0.019 |
Ring Gap: Bottom Compression | 0.015-0.024 | 0.009-0.019 |
Ring Gap: Oil Control | 0.010-0.050 | 0.015-0.055 |
Engine type | V8-273cc(4.5L) | V8-307cc(5.0L) |
Seat Angle | 45° | 45°(exhaust 31°) |
Face Angle | 44° | 44°(exhaust 30°) |
Spring Test Pressure | intake: 212@1.28; exhaust: 216@1.28 | 187 lb @ 1.27 |
Stem-to-Guide Clearance: Intake | 0.0010-0.0030 | 0.0010-0.0027 |
Stem-to-Guide Clearance: Exhaust | 0.0010-0.0030 | 0.0015-0.0032 |
Stem Diameter: Intake | 0.3410-0.3420 | 0.3425-0.3437 |
Stem Diameter: Exhaust | 0.3410-0.3420 | 0.3420-0.3427 |
Engine type | V8-273cc(4.1L) | V8-307cc(5.0L) |
Cyl. Head Bolts | 90 ft.lb | 130 ft. lb |
Rod Brg Bolts | 22 ft.lb | 18 ft. lb (Plus rotate 70°) |
Main Brg Bolts | 85 ft.lb | 80 ft. lb (Rear main: 120) |
Crankshaft Damper or Pulley Bolt | Press fit | 200-310 ft. lb |
Flywheel to Crankshaft Bolts | 70 ft.lb | 60 ft. lb |
Intake Manifold | 40 ft. lb | |
Exhaust Manifold | 18 ft.lb | 25 ft. lb |
Carb ID | 17086008 (E4MC) | 17086008 (E4MC) |
Float Level | 11⁄32 in. | 14/32 in |
Air Valve Spring | 1/2 turn | 1/2 turn |
Pump Rod | fixed | fixed |
Primary Vacuum Break | 0.142 in/25° | 0.142 in/25° |
Secondary Vacuum Break | 0.278 in/43° | 0.278 in/43° |
Choke Rod | 14° | 14° |
Choke Unloader | 0.220 in/35° | 0.220 in/35° |
Fast Idle Speed | See underhood decal |
Feature | Eldorado | Full size | Seville |
Caster Range | 1-5/16°P to 3-5/16°P | 2°P-4°P | 1½°P-3½°P |
Caster Pref. | 2-5/16°P | 3°P | 2½°P |
Camber LH wheel Range | 13/16°N to 13/16°P | ½°N to ½°P | ½°N to ½°P |
Camber LH wheel Pref. | 0° | 0° | 0° |
Camber RH wheel Range | 13/16°N to 13/16°P | ½°N to ½°P | ½°N to ½°P |
Camber RH wheel Pref. | 0° | 0° | 0° |
Toe-In | 3/32 in to 3/32 out | 3/32 in to 3/32 out | 3/32 in to 3/32 out |
Steering Axis Inclination | -- | 10-19/32 | -- |
1989 Cadillac Notes