Neill 442

I have a 2000 Taurus SES 3.0L automatic at the end of winter last year the heat was poor and has not gotten any better. So far I have replace the thermostat,Flushed the cooling system inclueding removing the hoses at the heater core to flush it and today replaced the water pump. I still have no heat is there something I'm missing, could the heater control unit need calibrating? Thanks for any and all help.

Neill

Sterling_Six

Hello and good day Neil:

There could be a few factors, and one is the Heater control unit.

Does the Fan work??

It's probably just a blend door not opening.

Ford stopped using a valve to control the water into the heater core to control the heater temperature. Instead they use a “blend door” to mix hot and cold air to achieve desired temperature. That’s why you only get fresh (outside) air on the heat settings. The blend door controls the flow of air through and around the heater core. Two things could have gone wrong:
1. The electric actuator (motor) that moves the door is bad.
2. The hinge attached to the actuator is broken.
If it is the blend door pray it’s #1. A broken door means opening the evaporator housing to replace the door itself. That requires discharging the AC system to remove the housing. I’ve read where guys have dissected the evap housing to repair the door with out removal.

__________________
Good Luck and good repairing Sterling_6
"You know, just like in that Book, When Jesus beats up Moses to get Religion!!"

Neill 442

Yes the blower fan works and I can see the actuator motor move I may need to remove it and check the blend door.

Sterling_Six

yes give that a look.

__________________
Good Luck and good repairing Sterling_6
"You know, just like in that Book, When Jesus beats up Moses to get Religion!!"

foggysail

Yes, you flushed the heater core but did you reverse flush it? YOu may have done it correctly but if you do not reverse flush it, you most likely will not get a good water flow through it that will result in inadequate heat.

Foggy

Neill 442

Yes I reversed flushed it. I hate this DAMN POS I've had more recalls on this one car then on all the other cars I've owned.

jwko

Do both heater hoses get hot?

Neill 442

Yes both hoses are hot. I think am going to start calling this car the terrorist!

Bert

If both hoses are hot, there's a problem with the blend door not moving. Probably the actuator motor.

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Bert

Neill 442

Well spent a few hours today and pulled the heater hoses off the heater core again what fun and reversed flushed the it again about 5 minutes each side. I still did not see any real crude flow out but atleast I have heat again now it need to go to the dealership again for the cruise control recall again.