Metering Valve
On disc brake equipped vehicles, the metering section of combination valve must be deactivated before bleeding. This will allow fluid to front brakes. Disable metering valve by holding valve in open position with a suitable tool, (J-23774-01, American Motors; C-4121, Chrysler Corp.; J-22742 Ford Motor Co.; J-23709, General Motors Exc. Cadillac; J-23770, Cadillac).