Cutlass Supreme

Engine Overheating Due to Water Pump Leak on Oldsmobile Cutlass Supreme

Problem Description and Possible Solution

The water pump may develop a coolant leak resulting in an engine overheating condition.


Problem Data
RepairPal Verified
Average mileage: 76,500 (73,000–80,000)
Engines affected: 3.1L V6, 3.4L V6
8 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997
14 people reported this problem
Viewing 1 - 3 of 3 comments
Replace the thermostat and the water pump, still having overheating and high idling problems...also the radiator fans weren't working. Replaced the temp sensor, fans stay off. Take the temp sensor out, fans kick in (?) Wondering if it's more electrical than mechanical and I'm looking into replacing the relays.