In a message dated 8/4/2005 3:52:32 P.M. US Mountain Standard Time, [EMAIL PROTECTED] writes:
Here's the question though. His car only has working front defrost, none of the other buttons do anything. I have a spare servo from a junkyard that I picked up several months ago. Is the "defrost only" mode a failure mode of the servo, so it's worth me trying the junkyard one, or is "defrost only" more likely something else, and I should just replace the leaky hose? Kevin, You can delete all the replies except Dan's and go with his. The key thing he said is you don't need vacuum to get the blower to run on defrost. There is both an electric relay for defrost and a vacuum relay for normal blower operation. The other buttons requires vacuum to start and stop the blower, the AC compressor, and move the dampers. You need to find out where the vacuum signal to the AC is going. It is probably plugged at the firewall if the PO has removed the AC belt. Regards, Jim Friesen Phoenix AZ 79 300SD, 261 K miles 98 ML 320, 137 K miles
