DeVille DTS

Coolant Leaks From Water Pump and Radiator on Cadillac DeVille DTS

Problem Description and Possible Solution

The water pump and/or the plastic side tanks on the radiator may leak causing a loss of coolant. The engine may overheat due to coolant loss. Continued coolant loss after external leaks have been repaired could indicate a blown head gasket.

Problem Data
RepairPal Verified
Average mileage: 89,109 (36,000–175,365)
5 model years affected: 2001, 2002, 2003, 2004, more2005
19 people reported this problem
Viewing 1 - 8 of 8 comments
2004 DTS has been overheating for 1 year, unable to drive over 35 miles. Spent over 4K looking and fixing car problem related. Best new Radiator, water pump and still working on issues.
plastic tank on the radiator right side has blown tonight just popped a Piece just popped leaving me with a huge hole in the radiator tank.
YES! Defect radiator ! We have 2 DTS same year almost same miles...BOTH needed new radiators at 75-85,000 miles....(in the same week..)
I replaced the Radiator and check for all leaks and sealed some of the leaks .. the leaks continue what do i do. Please advice.