THIS VEHICLE HAS PUMPED THROUGH 5-7 QUARTS OF OIL APPX EVERY 500 MILES. I KNOW THAT THIS IS NOT NORMAL. CAR WAS OVERHAULED, THE TRANS WAS BASICALLY REBUILT, WITH NEW COMPONENTS.PROBLEM WITH OIL EVAPORATING AT VERY LOW MILEAGE STILL AN ISSUE. ***NO LEAKS*** OR SYMPTOMS ASIDE OF DIMINISHING OIL EVERY SAID SET OF MILES. VERY FRUSTRATING ISSUE THAT HASN'T BEEN RESOLVED. *TR
2005 cadillac STS engine problems
severe 12 complaints filed with NHTSA · avg repair $3,100
Complaints
12
Recalls
0
Crashes
1
Avg fix
$3,100
What owners are reporting 5 most recent
WENT OUTSIDE TO DRIVE THE CAR BEGIN TO DRIVE OFF AS I WAS DRIVING A BIG BALL OF SMOKE CAME OUT THE TAIL PIPE AND SOUNDED AS IF SOMETHING BROKE AND THE CAR SHUT OFF. THE CAR WOULD NOT RE START. *TR
TL* THE CONTACT OWNS A 2005 CADILLAC STS. THE CONTACT STATED WHILE DRIVING 30 MPH, THE ENGINE LOST POWER AS THE ENGINE LIGHT ILLUMINATED. THE CONTACT MERGED THE VEHICLE TO SIDE OF THE ROAD SAFELY, WHICH WAS THEN TOWED TO THE DEALER. THE TECHNICIAN DIAGNOSED THAT THE INTAKE AND EXHAUST MANIFOLD NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE ISSUE. THE APPR…
S10 APPROPRIATE HANDLING- LETTER TO THE SECRETARY FROM CONSTITUENT RE COPY OF A LETTER ADDRESSED TO GENERAL MOTORS CHIEF EXECUTIVE OFFICER MARY BARRA REGARDING THE RECALL OF VEHICLES THAT CAN LEAK OIL AND CATCH FIRE. *SMD THE CONSUMER STATED THE TECHNICIAN SHOWED HIM WHERE BURNT OIL HAD LEAKED THROUGH ENGINE GASKETS BETWEEN THE CRANKCASE AND MANIFOLD. THE CONSUMER WAS QUOTED A PRICE OF $ 4,153.…
TWICE DRIVE ON INTERSTATE (POSSIBLE AFTER ROUGH AREA ON INTERSTATE) REDUCE POWER LIGHT AND NO ENGINE POWER ATLANTA, GA TRAFFIC NEARLY GOT HIT SEVERAL TIMES TRYING TO GET TO THE SIDE OF THE INTERSTATE. NOW THREE TIMES STOP CAR PUT IN PARK AND ENGINE WILL NOT SHUT OFF, LIGHT SAYS PUT IN PARK ALTHOUGH IT IS IN PARK OR SHOULD BE. THE RECALL ON THE DRIVE AXLE SEAL, CADILLAC WOULD NOT COVER COST, I DI…
Common questions
How serious is the engine problem on the 2005 cadillac STS?
It's a meaningful issue. 12 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $3,100.
At what mileage does the engine typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
Some links on this page are affiliate links.