Coolant loss and/or Engine Overheating Due to Leaking Water Control Valves on Cadillac Catera

Problem Description and Possible Solution

The hot water control valve may develop a coolant leak resulting in engine overheating. A leaking valve should be replaced.

Problem Data
RepairPal Verified
Average mileage: 103,043 (62,500–150,000)
5 model years affected: 1997, 1998, 1999, 2000, more2001
20 people reported this problem
Viewing 1 - 11 of 11 comments
Heater control valve on back of motor is leaking. Working on fixing it.
i need to replace it, with new
Exact. Same problem
Heater Control Valve leak,
leaks fast
My 2001 Cadillac catera has had several heater control valve replacements but continues to be an issue. Current replacement was in November and is now leaking coolant. Cannot determine what is causing the problem.
leaking atefreez down back of moter on bell housing
Engine light on and runs hot
Yup, mine leaks like crazy too! Replacing it this weekend!
will not hold coolant for very long it overheats quickly and has to be replaced
Yes, I have a water control valve leak as well. also I have a faulty EBCM. help