Air leak help needed

[Byrne Lobdell]

JB; My 77 came with an electric vacume pump and I updated to the jet pump many
years ago. I jet pump will cut off when the vac reaches 15" and the air will
stop coming out till the next cycle. If there is a vac. leak the pump will
continue to blow air. Byrne 77fc35

bascom1968 wrote:Does my 77FC31 have this device? It leaks
air and you can hear it in
the front. My cruise lights up and makes noise but doesnt work. Thanks.
JB Lewis Grand Lake Oklahoma








--- In WanderlodgeForum@yahoogroups.com, "ttikalsky"
wrote:
> Not sure what the part is that the air is leaking from but hopefully
> someone here does. Under the front left corner near the steering
> gearbox is a black flat "device" with 4 air/vacum line connections.
> There is a fifth nipple that is constantly evacuating air. The rear
> suspension drops when I shutdown the main engine. Sometimes the front
> suspension also drops and one time the air brake system pressure drain
> and the suspension remain inflated. I am guessing the black unit is a
> diaphram for pressure balancing but not sure. Anyone know what this
> is and where I can get a replacement?
>
> Troy, Waconia MN 83FC33






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