I have noticed that when I accelerate in my 89 townie, I would hear a high pitched (not whine) but in a way, it sounds like like air sucking somewhere. It only happens when I accelerate. Any idea if anyone else went through this issue?
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"To Find yourself, you must first lose yourself"
-1973 Volkswagen Bus Westy
-1986 Honda Magna 700cc
-1989 Lincoln Town car Signature Series
-2011 Subaru Outback -
Acceleration makes low vacuum. Low vacuum makes the HVAC default to defrost vents if reservoir is leaky. Defrost vents do make loud woosh sound with the blower running at full tilt. So put the HVAC to panel vents, point them at your hands so you can feel the airflow, then hammer down and see if you feel less air blowing on your hands.The ones who accomplish true greatness, are the foolish who keep pressing onward.
The ones who accomplish nothing, are the wise who know when to quit. -
Could be many things. The parking brake release is a common one inside the cabin but it could be somewhere in the climate control system too. The whole air door system is vacuum operated.86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousersComment
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And the howling noise is exactly what air can make if the blower first whips it into a frenzy (which is what blower does by default) and then the HVAC doors redirect it down the wrong path cause servos are losing vacuum and can't hold position against their built-in return springs.The ones who accomplish true greatness, are the foolish who keep pressing onward.
The ones who accomplish nothing, are the wise who know when to quit.Comment
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Thanks for the input guys.. I will take a look at this these things, tomorrow!"To Find yourself, you must first lose yourself"
-1973 Volkswagen Bus Westy
-1986 Honda Magna 700cc
-1989 Lincoln Town car Signature Series
-2011 Subaru OutbackComment
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