Blowing from defrost vents only, 2001 Ford ranger xl


bailinbailey

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The air only blows out of the defrost vents onto the windshield. I have a brand new climate control, and all vacuum lines are good beneath the hood.
2wd 2001 ranger single cab 2wd 2.5l manual
 


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Dirtman

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So friggin big!
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Vent is the default setting, so when the actuators fail it will stick in vent mode.

What do you mean you tried a brand new climate control?
 

bailinbailey

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I bought a module for selecting ac, no ac, head vents, feet, or defrost. It didnt fix it. I am so sick of this truck. So what your saying is the black ball located on fender is not pushing vacuum.
 

Dirtman

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466.63 teaspoons.
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So friggin big!
My credo
Give me money.
The selector assemblies rarely fail. You could have a bad vacuum actuator, or a vacuum leak. Start by checking the line from the vacuum resivior to the intake, then check the resivior itself for cracks, and follow the line all the way into the cab. A vacuum gauge would make the process quicker.
 

1999Mazda Central Florida

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Hey B.I. Bailey: my 1999 Mazda/Ford B2500 manual single cab is doing the same thing but only in "A/C Max" position AND...when I accelerate hard. When on just the "A/C "switch/dial position, cooling is nominal and no bypassing out defrost vent (even with hard acceleration.) The issue you are describing happened to me X3 times and a broken or cracked vacuum line was always the cause, but like you said the lines were good on yours. The issue I'm having now is a real problem since I have not located a broken or cracked vacuum line (like your situation.) I still have A/C though but only in A/C dial position. Does it bypass on the A/C Max dial position AND the A/C dial position, or just the A/C Max position? The vacuum actuator is up behind the glove compartment (at least on my 1999 Mazda/Ford.) I think I'm going to replace the actuator pump which is the vacuum operated cyclinder piston thing that moved the vent/door. I don't think I have a vacuum reservoir (the round ball/bottle,) at least I cannot find it unless it's under the shroud under the passanger side fender. I would just replace it all: reservoir, and actuator pump.
I'll re-post once I replace the actuator piston. I attached a few pics of vacuum actuator pump (which opens/closes the vent door up in the dash.)
 

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cbxer55

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When the mixer door goes bad or usually, breaks, the same thing happens. I used to have a link to a fix where you remove the glove box, go in through there and put in screws to replace the broken plastic shaft. Can't seem to find it anymore though. Maybe it's on here somewhere.
 


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