Front ac blowing cold but volume is very low even on high fan speed. Can hear fan blowing propoerly but volumeout of vents low
Aug 16, 2009 at 10:48 AM
1998 Ford Windstar
1998 FORD WINDSTAR
PLEASE2008
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The pathway which the air is directed is controlled by small vacuum lines. There is a main vacuum "Feed" port on the intake plenum; it is usually smaller and of a harder plastic-type material than the normal rubber vacuum lines which are used for engine emissions.
Follow this line from its start point to the passenger side; look for any broken or kinked areas.
Also, while the following requires some disassembly of the dash, there are vacuum lines which run to the back of the selector switches. Make sure the vacuum lines are attached... and play around with them: Detach them, plug them with little rubber grommets or whatever you have laying around. See if it makes a difference to where the air is directed (which vents).
There is also a damper control on the airbox (under the dash, passenger side). See if it is moving (the lever) depending on selector switch position.
All tests need to be made with engine running...otherwise, there wiill be no vacuum.
Follow this line from its start point to the passenger side; look for any broken or kinked areas.
Also, while the following requires some disassembly of the dash, there are vacuum lines which run to the back of the selector switches. Make sure the vacuum lines are attached... and play around with them: Detach them, plug them with little rubber grommets or whatever you have laying around. See if it makes a difference to where the air is directed (which vents).
There is also a damper control on the airbox (under the dash, passenger side). See if it is moving (the lever) depending on selector switch position.
All tests need to be made with engine running...otherwise, there wiill be no vacuum.
Aug 22, 2009 at 7:32 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.