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no heater valve 700 1987

posted by  pbrown on  Mon Dec 2 00:49 CST 2002
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When I replaced the wiring harness on my 760 a few months ago, I noticed I had a leftover vacuum hose with a little strap with a hole attached to it. Well I finally figured out where it goes (don't know why I didn't look under the hood of my 740 earlier). It is the vacuum supply hose for the heater control valve. But SURPRISE!!! no heater valve. The PO removed it and plumbed it straight with a small length of copper pipe.

My question is what would be the symptoms of the missing valve and open vacuum line? Car has ACC.

Replys are greatly appreciated.






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