Question about 2001 Ford Windstar

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Heater Vacuum hose disconnected No front heat and ticking noise

I disconnected a vacuum hose for the heater on my 2001 ford windstar and i cant find where it goes

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  • yadayada
    yadayada May 11, 2010

    where is this hose at?

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1 Answer

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  • Ford Master
  • 5,568 Answers

That path begins at the intake manifold which is the only source of vacuum for those controls. In all systems I have seen, there is a bottle or canister under the hood that acts as a reserve source for all vacuum-operated devices since the level of vacuum varies greatly depending on whether the engine is running free or lugging.  Tracing backward might not be fun but is possible. 

Posted on Apr 23, 2009

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1 Answer

Why wont my 2001 ford windstar blow out of vents ? only on defrost?


Air Flow Control
Air flow control is accomplished in the following manner:
  • Primary control is through the function selector knob , mounted on the heater function selector switch, which is part of the heater control .
  • The function selector knob has the following positions: OFF, PANEL, PANEL/FLOOR, FLOOR, FLOOR/DEFROST and DEFROST.
  • The heater function selector switch combines a vacuum selector valve with an internal electrical switch.
  • The vacuum selector valve directs source vacuum to various vacuum control motors (18A318) . Refer to the System Airflow Schematic and Vacuum Control Charts.
  • An internal single-pole electrical switch is also controlled by the selector. The switch controls the electrical supply to the heater blower motor switch (18578) .
  • The position of the function selector knob determines the manner in which the system will operate.
  • Each position of the function selector knob is detented for positive engagement.
  • You probably have a vacuum leak , Pull heater control panel an check for vacuum . A broke vacuum hose or The vacuum selector valve is bad ! Or check for a vacuum hose in the engine compartment being off somewhere !

Mar 08, 2015 | 2001 Ford Windstar

1 Answer

2001 ford taurus no heat


Everything inside the car for heat and AS is vacuum actuated blend doors. You apparently have lost vacuum to the control levers. Check all vacuum lines in the engine compartment for pulled loose or cracked and broken hoses. Better yet, find the black vacuum canister (it's like a round ball about 4 inches in diameter and with the engine running, pull the hose off of it to see if you have vacuum on that line. Other hose goes in under dash to the gang connection on the back of the controls. If no vacuum on the line to the canister, it's not connected to the engine. Hook it up till you have vacuum to the canister. Should be fine now, unless the line is off under dash. Have faith in yourself friend, you'll find the vacuum leak.

Jun 17, 2017 | Cars & Trucks

1 Answer

1998 windstar heater blows cold air


I used to have this vehicle. There are a couple of things that can cause this. In my case there was a disconnected vacuum line that caused the air to only blow through the defrost vents. The vacuum hose beneath the passenger side cowl is probably disconnected. It is behind the engine just below the passenger side windsheild wiper.

The other possibility if all of your vents are working and the air is just cold, could be because the heater core bypass valve vacuum hose came off. Check to make sure the heater core hoses have hot coolant flowing through them when the engine is at operating temp and while running.


The last possibility for this vehicle is the actual HVAC panel with your controls on it. This panel has colored vacuumn lines connected to it that like to break off over time. The switches themselves will sometimes leak air preventing it from functioning correctly.


Hopefully this gives you some clues on where to look.

Nov 24, 2012 | 1998 Ford Windstar

1 Answer

Looking for a diagram for 2001 Ford Windstar - Heater Vacuum Hose. I believe that is why the heater only works when the engine RPMs are up


this is kind of vague, so please dont give me a bad vote but it sounds like your heater control valve is defected.

Nov 06, 2010 | 2001 Ford Windstar

4 Answers

NO heat in front of 2001 windstar van. Thumping


Blend air door may be stuck. I removed a pencil from a heater box before. It had fallen from the dash, down through the defrost vents and jamed the door.

Nov 13, 2009 | 2001 Ford Windstar

3 Answers

2001 Windstar- I have no heat or defrost. I do


I had this problem and noticed a faint clunking sound behind the radio. It was the blend door motor that needed to be replaced. The motor has small fine tooth plastic gears that wear out and won't open to allow heat.

Nov 07, 2009 | 2001 Ford Windstar

1 Answer

Can't find heater valve for 99 windstar


if you mean the valve to close off hot water from the cabin, it should be on the heater hoses leading to the firewall. There will be a vacuum line attached to it. If you mean the heater blend door motor swinging back & forth merrily under the dash, then look under the dash for a noisey little white motor/box, with wires going to it, replace either as needed. retest

Oct 29, 2009 | 2001 Ford Windstar

1 Answer

Heater vent won't switch from cold to hot. the heater core hoses are both hot and there is a dull thumping noise under the dash like a vacume switch is jammed


probably something feel down the defroster vent, have a helper check the vacuum motors as you switch from heat to cold, that should tell you wich one is jammed

Oct 26, 2009 | 1999 Ford Windstar

1 Answer

A/C and Heater fan not blowing


Look for a vacuum leek usually in the engine compartment but it could be under dash if this was helpful please leave good feed back.

Jun 30, 2009 | 2001 Ford Windstar

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