replying to uncle_vito , wrote:
> uncle_vito2002 wrote:
>
> "ken" > wrote in message
> oups.com...
> That may be a solenoid that guarantees there is vacuum to the open side when

> the wipers are turned on. But my guess is that there would be a switch that

> would not allow the wipers to come on unless the door was sensed to be open.

> I sold my car years ago and I am going by memory. There is also a rubber
> seal on the actuator shaft that can be replaced. When that seal wears out
> vacuum leaks for the action in that direction. If that direction is to
> close the door, that could explain why the door doesn't always stay closed.
> The closing action is weak due to a vacuum leak at the seal where the shaft
> slides.
> If when the engine starts, you get weak vacuum on either side of the
> actuator, it could move the actuator to open the door since one side has
> less vacuum due to a shaft seal leak. When vacuum builds, the effect of
> the valving take over and the actuator takes its proper position which is
> closed. Check the shaft seal and replace the seal if worn.


Thanks, I will check out the seal this morning. Ken

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