Originally Posted by Puettz
I have attached a copy of what I am guessing to be the dash pot. I started the coach and pushed in the lever and air came out of the vents. As soon as I let go the air quit coming out of the vents and out the defrost. It has two tubing lines coming out of it, one yellow and one white. I guess my question is, should I try and obtain a new one of these and see if that solves my problem? I really appreciate your help.
The dashpot is usually reliable. I've never seen one go bad. Best to check if you have vacuum going to it before buying one. For the system to work the engine must draw vacuum then it needs to be switched. Engines draw the most vacuum when you increase engine revs and lift off the throttle. I have owned vehicles that required doing this to get air from different vents.