2005-2008 Cadillac STS: Reliability
Updated: 11/23/08
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Our reliability study for this generation Cadillac STS includes details on average repair costs, manufacturer recalls, and everything you need to know to gauge the long-term reliability of this generation Cadillac STS .
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.
Audio system:
Radio reception may be poor or have static because the rear window defogger may have invisible cracks in the grid lines. (2005-06)
Electrical problem:
A voluntary recall was issued to reprogram the PCM on some high-feature 3.6L engines. (2005)
Fuel gauge:
The engine may not start or may stall because the tank is empty yet the gauge shows fuel remaining, or the fuel gauge will not show full after refilling due to sulfur corrosion of the fuel level sender and if after treating with Fuel System Cleaner PLUS the problem remains, the sender may need to be replaced. (2005-06)
Oil leak:
Oil leaks at the timing cover on 4.6L engines may require a gasket or a new timing cover. (2004-05)
Paint/body:
Paint on the hood blisters and bubbles, requiring refinishing and repainting. (2005-06)
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 | $670 |
| Alternator | $820 |
| Automatic Transmission or Transaxle | $2,900 |
| Brakes | $590 |
| Clutch, Pressure Plate, Bearing | |
| Constant Velocity Joints | $1,590 |
| Exhaust System | $940 |
| Radiator | $870 |
| Shocks and/or Struts | $4,200 |
| Timing Chain or Belt | $1,450 |
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