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Occasional Vacuum sucking sround coming from under the dah (center to driver's side)

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    Occasional Vacuum sucking sround coming from under the dah (center to driver's side)

    What I would notice (intermittently) is that when I SLOWLY back off the gas pedal....I would hear a sucking sound as if I am losing a vacuum somewhere. I can duplicate it a finite amount of times by giving throttle and slowly releasing it. Anybody else go through this. I did replace that crescent valve and need to check the parking brake release actuator. But it still stonewall's me
    "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

    #2
    Center-driver's side sounds like a vacuum leak at the climate control head unit. Are you sure the sound is in the dash and not in the engine compartment?
    RyPow
    1987 LTD Crown Victoria LX sedan - The "Sand Box" - 73K, towing package
    1987 LTD Crown Victoria LX Tutone Tudor - '96 Explorer 5.0 + 5spd swap in the works
    1985 Lincoln Town Car Cartier - previously owned by "navguy12" from thelincolnforum.net
    2007 Lincoln Town Car Signature Limited, 102k, daily driver
    2006 Mercury Grand Marquis LS, 115k, winter beats
    1977 Lincoln Continental Town Car, 42k
    2012 F-150 5.0L 4x4, HD payload pkg (towing/hauling)
    2015 Toyota RAV4 XLE AWD (better half's)

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      #3
      No... but mines been making a ticky/creaky sound somewhere under the dash after i let off the gas. Really faint but pretty annoying
      Give a man a fish and he will be fed for a day. Teach a man to fish and he will promptly forget that he once did not know, and proceed to call anyone who asks, a n00b and flame them on the boards for being stupid.

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        #4
        With all the windows rolled up, I could hear it tssssssssssppwhen I let off the gas. I am hopig it's not in the climate control, maybe the crescent valve again
        "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

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          #5
          I had a leak on the device that auto releases the parking brake pedal. I unplugged it and used a screw to cap off the hose. No more hissing/leaking sound.


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          I'd rather be a failure at something I love than a success at something I hate.
          George Burns

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            #6
            I guess what I will do is create vacuum on random hoses to see if it's the hose or if not then ill pull vacuum on the crescent valve and Parking brake actuator
            "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

            Comment

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