2003 Ford Windstar Heater not working right

90,000 MILES • 6 CYL • 2WD • AUTOMATIC
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CYNDI ENZENAUER
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  • 1 POST
I have a Ford mini van and the heater has just started acting up.

The first thing I noticed is when I would slide the bar from cold to hot I would hear a clanking noice. But the heater still worked.

Now the only thing that works on the heater is the back heater vent that is by the left rear door. The front heater/defroster only blows out cold air. And when I put the rear control on rear control nothing comes out of the top vents.

I have tried all positons on the front heater control and the fan works but only cold air comes out.

When I use the rear control the only thing that works is the vent by the rear left door.

Does anyone know what's wrong with this heater?

:) Cyndi
Jan 6, 2009 at 2:32 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Cindi:
There are vent doors in the HVAC duct work. The first noise you were hearing was most likely one breaking or coming apart. You need to check to see if the door (will be near the fan motor) is opening and closing. It's called a blend door.
Dec 20, 2016 at 10:17 AM
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