delta_p
OBS Chevrolet, When Silverado Was A Trim
Here's what I am having trouble with. The figure shows how i am seeing the combination valve with brake pedal pressure being applied in normal mode, leak to rear, and leak to front. In leak to rear I see no blockage really. In leak to front, I see blockage to the front, I see the rear opening up a bypass around the proportion valve (probably to allow full pressure without reduced clamping of pressure and to allow some braking without pushing the metering valve much). Like the meter valve is being held closed. And normal mode is obvious to me. I am coming around though i promise .
Except in normal mode as I believe you stated the metering pin stays as shown frm 0-25 psi on the front, then shuttles to close the meter valve from 25 - 100 psi, then the pin and valve shuttle to wide open the meter from 100 psi up.
Except in normal mode as I believe you stated the metering pin stays as shown frm 0-25 psi on the front, then shuttles to close the meter valve from 25 - 100 psi, then the pin and valve shuttle to wide open the meter from 100 psi up.
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