OEM Chevrolet Classic Brake Proportioning Valve

Chevrolet Classic Brake Proportioning Valve Parts and Q&A

• Pressure Metering Valve
  22701249
  Q: How to Properly Service the Brake Proportioning Valve on Chevrolet Classic?

  A:

  Begin the brake proportioning valve replacement process by taking away the battery tray and making a note of brake pipe placement. Unplug the brake pipes from both sides and the 4 brake pipes from the proportioning valve by placing bleeder valve caps on the connectors to stop brake fluid loss and keep out contaminants. Support the vehicle using a proper hoist at the given height and remove the left inner fender shield below. Unfasten the two bolts securing the proportioning valve bracket before taking out the complete assembly. Attach the proportioning valve assembly to the vehicle and fasten it with the 2 bracket bolts up to 24 Nm (18 ft. lbs.). Replacement of the shield should happen after you lower the car. Make sure brake pipes attach to the brake pressure modulator valve properly to avoid wheel lockup which test results come from a Scan Tool or by performing an Antilock stop. Fit both brake pipes into the proportioning valve openings and attach the 4 brake pipes. Secure all brake pipe connections using a torque of 23 Nm. Put back the battery tray then release air from the brake system.