knotnook at traverse.com
Fri May 2 12:40:29 EDT 2003
There's a little motor assembly inside the flap controller on the driver
side of the heater core box. The motor has some sort of variable
electrical control that determines where the motor moves to in response to
the temperature sensors inside the vehicle. That thing deteriorates with
age. There is a $60 or so replacement for the motor that solves the "go to
cold air" syndrome. It was discussed early in January on the
subject "heater flap feedback-potentiometer".
At 07:32 AM 05/02/2003 -0700, Chuck Pierce wrote:
>As I sort out the ac/heat system my next thing to figure out is why the
>heater comes on warms up the car and then starts blowing cold air.
>I know I have seen something about this, but I am not sure about the cure.
>91 200tq avant slowly getting sorted out, with new 16" V8 wheels!!!
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