I suspect problems with air valves also but don't know how to access
them. Wouldn't that require removing the dash?
The lack of heat seems inconsitent too. It could be that the core is
partially blocked. The Haynes book says you can disconnect hoses and
flush the core. However, I can't see where water hoses pass through the
firewall the way it is pictured in Haynes.
Shawn wrote:
> "Moses" <moses@[EMAIL PROTECTED]
> wrote in message
news:480e50cc$0$20173$4c368faf@[EMAIL PROTECTED]
>
>>My 99 Taurus heater isn't working right. When the selector switch is in
one of the two heater options or in defrost, no hot air
>>seems to come from the vents. On the other hand, if the selector is on
vent or AC, heat will come throgh when the temp dial is in
>>the hot position.
>>Given the fact that some heat comes through in some conditons, I don't
think the heater core is plugged. The fan motor runs.
>>This is a 99 wagon, 3.0 fi ohv. Any solutions?
>
>
> Check the air gates that control flow throughout the ducting network.
One may be stuck open or closed. Some
> vehicles use a vacuum system to control the air gating & the control
valve may be faulty or plugged up or one
> of the vacuum lines may be kinked.
>
>
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