I had no heat when driving on the freeway, some around town. Heeding the advice posted on this great forum, I checked the monovalve (bad, installed new kit), now have heat at speed . Also, checked auxiliary heat pump, not running Checked for power with my trusty DMM, have power. Checked thru the motor, no reading I guess I am lucky as I have read where a shorted pump motor takes out the ACC. My question is, has anyone rebuilt the pump motor or is it a "sealed" unit or is it not worth the effort and just replace it?
Thanks
Jerry

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Jerry -
If you don't learn something new every day, you aren't paying attention!!
1971 108 280SE 2.8 "Ronnie"
1985 300TDT (76,904 Original miles ) "Sadie" (Sold-went back to Arkansas)
1984 300DT "Green-go" (Sold)
1984 300DT "Silver Bullet" (Sold)
1956 220S Ponton
1985 300D (Sold)
1984 300D