Problem Reports
Cadillac DTS
Report: Coolant Leaks From Water Pump and Radiator
Cadillac DTS Problem
Model Years Affected: 2006, 2007, 2008, 2009, 2010
Average Mileage: 57,500 mi (35,000 mi - 80,000 mi)
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.
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sjandras, 2007 Cadillac DTS, 35,000 miRookie
Random overheating at idle, guage would go from mid point to red very quickly - too quick to be real. Probably reading air in the system. Found coolant level low, so filled to appropriate level. Overheated again in driveway a week later and noticed leakage evidence under water pump. Replaced water pump and filled coolant. 2 months later overheating starts again, always at idle. This time noticed coolant under front of car, radiator appears to be source. Plan to replace radiator this weekend.
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