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I have been replacing check valves every few years and am used to that. This latest episode is different. It is like the control unit went south. But after being parked a while and starting it it will work for a short time. I remember the first time I noticed it. Usually you can hear a difference when a louver moves to a different position. But this unit is either on or off now. A cool morning and it works fine. Let the sun heat up the inside of the car and after just a few minutes of driving and all control is gone. So a bad solder joint sounds good. 10 minutes to get the control unit out? Are we talking about the unit that has the 3 knobs on it... fan speed... selector... and temp? Or are you talking about the small unit that has the vacume lines hooked to it? I was given a few picture schematics over on TurboBricks and have a little better picture of where things are. But AI thought I had to take the whole front of the dash apart to get to anything. When you have never tackled a job... the first time always seems bigger than it could really be. I can rebuild a motor, but dashes and trim peices brake in my hands! :) Any pointers are more than welcome.
Glenn
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