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Mixer flap Posted by Ari [Email] ![]() ![]() In Reply to: Only hot air blows through the vents, Jason, Tue, 1 Apr 2003 15:18:53 Members do not see ads below this line. - Help Keep This Site Online - Signup |
In the 9000, the heater core is always hot. There is a mixture flap that mixes cold air (outside air through the A/C) with hot air from the heater core. If the flap is always on the hot side, you'll only get hot air.
There is an arm on the flap that sometimes breaks. If so, the flap falls one way or another - usually hot in summer, cold in winter. The flap is controlled by a knob in manual temp controlled cars, and a servo in ACC-equipped cars.
There has been a lot written on this on the BB. Do a search on 'mixture flap' and/or ACC. Depending on what system you have, go from there.
As a hint, it's always helpful to mention what year/engine you have, and in this case, manual or ACC system.
posted by 192.249....
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