Quote:
Originally Posted by RichardJ
Bleeding the MC at this point, simply allows more air to enter the system.
Did you open the metering Valve on the end of the Combination valve when you bled the brakes?
Some metering Valves require the pin to be pushed IN, and held while bleeding. Some require the pin to be pulled OUT, while bleeding.
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Thanks for the input. Used a tool like the one pictured (it seated all the way so I assume the pressure differential valve was in place), but I did not do anything with the metering valve. It does not seem to want to move either direction and I do not know enough to know if it is out of position or not. The combination valve is the original Kelsey Hayes part for a 72 truck. It looks like the one in the diagram shown. Any explanation on the proper procedure for bleeding as it regards this combo valve would be great. Thanks.