How to replace heater control valve in a 2000 cadillac catera?
Saturday, July 16th, 2011 AT 6:28 PM
It is a bit of a challenge just due to access. You can remove the wiper arms, and the upper cowl trim to open it up a bit. There are three heater hoses and a vacuum line that attach to the valve. The original layout was spring type hosse clamps, usually those are replaced with a worm drive hose clamp.