I finally got around to fixing a leak in my heater core. I decided to check to see if there were any other obvious issues while I had everything torn apart. When I put a vacuum directly (bypassing the transducer) to the power servo it gets to about 10" and then slowly leaks back to zero. The fan will not go to full and the mode door will not open completely. I have read a couple of other posts that said they repaired the power servo leaks. How? Does anyone have one to sell? I just need the vacuum piece.
Any suggestions or comments would be appreciated. Thanks for your help!