1990-1993 Cadillac DeVille/Fleetwood: Reliability
Updated: 11/23/08
1993 Cadillac DeVille/Fleetwood
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1990-1993 Cadillac DeVille/Fleetwood
- Price Range: $800 - $1,900
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Our reliability study for this generation Cadillac DTS includes details on average repair costs, manufacturer recalls, and everything you need to know to gauge the long-term reliability of this generation Cadillac DTS .
Trouble Spots
Consumer Guide's® Auto Editors have scoured repair bulletins and questioned mechanics to search
for commonly occurring problems for a particular vehicle. In some cases we also give possible manufacturer-suggested
solutions. In many instances these trouble spots are Technical Service Bulletins posted by the manufacturer,
however, we have our own expert looking at additional vehicle problems.
Automatic transmission:
440-T4 automatic transmissions may shift late or not upshift at all. The problem is a stuck throttle valve inside the transmission. (1990-92)
Automatic transmission:
4T60E transmissions may drop out of drive while cruising, shift erratically, or have no second, third, or fourth gear because of a bad ground connection for the shift solenoids. Poor grounds also allow wrong gear starts. (1991-93)
Brakes:
Some early build models have unexpected ABS brake-pedal pulsation below 10mph due to moisture getting into the rear-wheel speed sensor(s). (1991)
Brakes:
Some models may be hard to shift out of park due to maladjustment of the brake-shifter interlock system. (1991)
Engine noise:
A rattling noise at startup is often caused by automatic-transmission pump starvation or cavitation, or a sticking pressure-regulator valve. (1991-93)
Engine stalling:
The engine may stall when coasting down to a stop due to a faulty throttle-position sensor (TPS). (1990-91)
Transaxle leak:
The right front axle seal at the automatic transaxle is prone to leak and GM issued a revised seal to correct the problem. (1992-94)
Vehicle noise:
Noises from the front, often mistaken as coming from behind the dash, are due to the front spring coils clashing when driving over bumps requiring sleeves on the lower spring coils. (1991-92)
Consumer Guide® Estimated Repair Costs
This table lists costs of likely repairs for comparison with other vehicles. The
dollar amount includes the cost of the part(s) and labor (based on $50 per hour) for the
typical repair without extras or add-ons. Like the pricing information, replacement
costs can vary widely depending on region. Expect charges at a new-car dealership
to be slightly higher.
| Item Name | Repair Cost |
| A/C Compressor | $470 |
| Alternator | $270 |
| Automatic Transmission or Transaxle | $1,010 |
| Brakes | $200 |
| Constant Velocity Joints | $875 |
| Exhaust System | $429 |
| Radiator | $417 |
| Shocks and/or Struts | $745 |
| Timing Chain or Belt | $250 |
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