Ford: 89 Town Car with no heat

For the past several years my 89 Town Car has had a coolant leak. Since the
leak was slow I have been simply topping off when needed. I finally decided
to address the issue and make the repairs. I have replaced all hoses, the
water pump, and the thermostat. Leak problem solved. However, it seems that
I now have no heat at all. Since I have not run the heater since last
winter, I don't know when the problem started.

If I allow the engine to reach operating temperature both supply and return
hoses to the heater core are hot. There is a sloshing sound in the passenger
compartment when I accelerate, but there is no sign of leaking coolant from
the heater core. The car does have climate control, and I have seen posts
referencing temperature sensors and blend doors. I am not quite sure where
to start first. Any suggestions?

Number of possible causes. The heater core could be plugged and the internal by
pass is doing just that, bypassing. Being this is a 89 the ATC is vacuum
controlled. The blend door servo or the control aspirator may be bad. The cable
that adjusts the aspirator may be broken. I would measure the temperature of the
heater core as a start point.
"john smith" <com> wrote in message
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