Sounds like either you have a leaky actuator, a bad switchover valve block or a bad push button panel. There are pretty acurate tests for this along with the old reliable vacum test with a hand pump and a roadmap of the circuits.
Project Smoker, '87 603 powered wagon
Hauler, 96 CTD can you say torque?
Toy 73 Cougar xr7 convertible
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