[Trevor]

Harvey,

I have lately spent some time at a second transmission specialists workshop, where actual system operation was practically demonstrated using a test rig. (Do not again sarcastically suggest a local garage, for it does you no credit.)

This included operation of the C solenoid, whereby exact function was demonstrated using a PWM generator. The valve moved as I have stated many times, in synchronism with the signal as expected, resulting in a pulsating through flow output stream.

I now have on hand a full set of sample valves, so as to verify exact construction and operation.

To continue jousting, sitting on an ass, facing its ass, and as a result to state the operation ot the system ass about face, is stupid.

A qualified engineer understands the requirements of a fail safe system, hence the use of normally closed valves In both instances.

I and others, would be interested to learn as to whether you can provide equal evidence.