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1980sCadillacYear In Review
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Cadillac Deville & Fleetwood History 1988

Cadillac Deville & Fleetwood Moels & History 1988

The Cadillac deVille (series 6C) had a new V-8 which was nearly 20 percent more powerful and 10 percent larger than the unit it replaced. Yet its fuel economy was virtually unchanged from the 1987 level. The larger V-8 also now had roller lifters and low friction pistons. The de Ville had a revised suspension and engine mount rates as well as revised heater/air conditioner components and electronic cruise control system. Previous options now standard for the de Ville included

  • the tilt and telescope steering wheel
  • cruise control
  • dual comfort front seat
  • controlled cycle wiper system
  • power trunk release
  • heavy-duty battery.

The deVille’s THM 440 automatic transmission now had a computer-controlled electronic torque management to prevent overstressing of driveline components. Six new exterior colors were introduced for the de Ville. A 4.5 liter V-8 engine identification plaque was added to the decklid. The armrest switch-plate was changed from cherrywood to black for 1988. Among the numerous electronic changes for 1988 found in the de Ville were a higher resolution internal speed sensor and a new under-dash relay center.

FLEETWOOD SIXTY SPECIAL

The Fleetwood Sixty Special (also series 6C) continued to offer a longer wheelbase than the D’Elegance model with which it shared the same refinements and features for 1988.

Model Series Number Body/Style Number Body Type Seating Factory Price Shipping Weight Production Total
DeVille 6C D47 2-door Coupe 6 $23,049 3437 lb 152,513
DeVille 6C D69 4-door Sedan 6 $23,404 3397 lb
Fleetwood D’Elegance 6C B69 4-door Sedan 6 $28,024 3463 lb
Fleetwood Sixty Special 6C S69 4-door Sedan 6 $34,750 3547 lb

 

ENGINE
  • 90-degree, overhead valve, V-8, aluminum block and cast iron cylinder liners, cast iron cylinder heads
  • Displacement: 273 cu. in. (4.5 liters)
  • Bore & stroke: 3.62 in. x 3.31 in.
  • Compression ratio: 9.0:1
  • Brake horsepower: 155 @ 4000 rpm
  • Torque: 240 lb.-ft. @ 2800 rpm
  • Five main bearings
  • Roller hydraulic valve lifters
  • Digital electronic fuel injection
CHASSIS

 

Feature DeVille & D’Elegance Sixty Special
Wheelbase 110.8 in. 116.0 in.
Overall length 202.3 in. 201.7 in.
Height 55.0 in. 55.0 in.
Width 71.7 in. 71.7 in.
Front Tread 60.3 in. 60.3 in.
Rear Tread 59.8 in. 59.8 in.
Standard Tires Michelin P205/70R14 P205/70R14

 

TECHNICAL

 

  • Transmission: THM 440-T4 automatic four-speed (includes overdrive and viscous converter clutch)
  • Steering: All FWD models: power-assisted rack and pinion
  • Steering Ratios: 19.1:1
  • Front Suspension: Independent MacPherson strut with coil springs, strut-type shock absorbers and stabilizer bar
  • Rear Suspension: Fully independent with coil springs, automatic level control and strut-type superlift shock absorbers
  • Brakes: Power front disc and rear drum with Taves anti-lock system
  • Body Construction: Integral body-frame
  • Fuel Tank: 18.0 US gal.
DRIVETRAIN OPTIONS

 

  • Anti-lock braking
  • engine block heater
  • aluminum alloy wheels (Coupe and Sedan de Ville)
  • stylized aluminum wheels (Sixty Special)
  • Option Package B
    • door edge guards
    • front carpeted floor mats
    • six-way power passenger seat
  • Option Package C
    • door edge guards
    • front carpeted floor mats
    • six-way power passenger seat
    • illuminated entry system
    • illuminated vanity mirrors
    • trunk lid power pull down
    • Twilight Sentinel
  • De Ville Option Package D
    • door edge guards
    • front carpeted floor mats
    • six-way power passenger seat
    • illuminated entry system
    • illuminated vanity mirrors
    • trunk lid power pull down
    • Twilight Sentinel
    • remote release fuel filler door
    • manual driver seat recliner
    • trumpet horn
    CONVENIENCE/APPEARANCE OPTIONS
    DeVille Fleetwood D’Elegance & Sixty Special
    Cellular telephone Cellular telephone
    automatic day/night mirror automatic day/night mirror
    controlled cycle wiper system controlled cycle wiper system
    rear window defogger rear window defogger
    dimming sentinel dimming sentinel
    automatic door locks automatic door locks
    garage door opener garage door opener
    illuminated entry system illuminated entry system
    electrically powered mirrors electrically powered mirrors
    power driver seat recliner power driver seat recliner
    six-way power seat adjuster six-way power seat adjuster
    dual comfort 45/55 seats dual comfort 45/55 seats
    tilt and telescope steering wheel tilt and telescope steering wheel
    trumpet horn trumpet horn
    trunk lid release and power pull down trunk lid release and power pull down
    Twilight Sentinel Twilight Sentinel
    visor vanity mirrors visor vanity mirrors
    Delco-GM Bose symphony sound system Delco-GM Bose symphony sound system
    Delco AM stereo/FM stereo electronically tuned receiver with cassette player Delco AM stereo/FM stereo electronically tuned receiver with cassette player
    universal citizens band transceiver universal citizens band transceiver
    Cambrias Cloth texture roof treatment Cambrias Cloth texture roof treatment
    two-tone paint two-tone paint
    formal cabriolet roof formal cabriolet roof
    digital instrument cluster digital instrument cluster
    full cabriolet roof Cambria Cloth roof
    wire wheel discs wire wheel discs
    aluminum alloy wheels aluminum alloy wheels
    accent striping accent striping
    door edge guards door edge guards
    fuel filter door remote release fuel filler door remote release
    leather seating areas leather seating areas
    firemist paint firemist paint
    pearlmist paint pearlmist paint
    reversible front and rear floor mats reversible front and rear floor mats
    leather-trimmed steering wheel leather trimmed steering wheel
    theft deterrent system theft deterrent system
    trunk mat trunk mat
    ride and handling package ride and handling package
    anti-lock braking system anti-lock braking system (standard)
    heavy-duty battery heavy-duty battery
    engine block heater engine block heater
    puncture sealing tires (not available with ride and handling package) puncture sealing tires (not available with ride and handling package)
    memory seat