Here's one for the gurus. My wife's 85 300dt has a blower issue. The "problem" is this. When you push a button on the PBU for the climate control to call for heat or cooling, the blower comes on for a second, cuts off, then maybe 20 seconds later comes on at very low speed, then shortly after increases speeds two more times. This happens regardless of calling for heat or cooling, or which fan speed it is on. Low speed fan does not increase to full blowing though. It is not the blower motor itself. I have swapped a fully working one from my 84 wagon and the problem is the same. I also swapped my PBU in and the problem was the same. Replaced the PBU after checking and resoldering all connections that even looked suspect. Replaced the blower after inspecting brushes, blowing and knocking out crud, and lubing. NO Difference. Also checked and topped off the freon charge just in case it had something to do with the AC pressure switch. I've scanned the forums but have yet to come across this issue. The Climate control seems to work fairly well, but I think the fan should blow harder, immediately and at steady speed, as in my other 80's diesel. Please help. Thanks

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1984 Astral Grey 300TDT - The French Fry
1979 Yellow 300SD - The Pomme - SOLD
1985 Light Ivory 300DT - Fritz
1987 Anthracite Grey 300SDL - ?