OEM 2004 Buick Regal Brake Booster

2004 Buick Regal Brake Booster Parts and Q&A

• Q: How to replace the vacuum brake booster on 2004 Buick Regal?

  A: Start your vacuum Brake Booster replacement work using the power Brake Booster holder part number j 22805-b. Take out the left instrument panel insulator before disconnecting the stoplamp switch electrical connection. Unclip the Brake Booster release as you remove its pushrod connection from the brake pedal. Then take out the cross vehicle brace and fuel injector sight shield. Unplug the Brake Fluid Level Sensor power feed without detaching master cylinder pipes from the brake pressure modulator valve. Unthread the two master cylinder holding nuts and place the unit to one side. Take the vacuum Brake Booster check valve and install its components together on the hose. Take the throttle and cruise control cables from the Throttle Body and pull out the throttle bracket along with both cables. Set them aside in their assembly. Turn the engine forward for greater reach before taking out the EGR Valve wiring shield and valve. Take off the transmission filler tube bracket retainer and put it aside with its component. Thread the power Brake Booster holder j 22805-b through the Brake Booster master cylinder nuts. Twist the booster counterclockwise using the holder tool while pressing the locking tab on its front section with a flatbladed tool. Remove the vacuum Brake Booster. Position the new vacuum Brake Booster onto the cowl counterclockwise to activate its locking features and then rotate it clockwise with the ratchet on the power Brake Booster holder (J 22805-B) without using a flat-bladed tool. After placing the vacuum Brake Booster in position you must take out the power Brake Booster holder (J 22805-B) install the transmission fluid filler tube bracket retainer and adjust the filler tube back into its original position. Secure the EGR Valve plus its electrical connections shield with a heat shield nut and bolt that must tighten to 10 nm (89 inch lbs.). Place the engine back to its normal position and put both engine mounted on the left and right sides into place. Put the Throttle Body cables back in position before connecting both throttle and cruise control cables. Reposition the master cylinder onto the booster and then connect its retaining nuts while tightening them to 25 nm (18 ft. Lbs.). Connect the brake fluid sensor to electrical power and add back the fuel injector shield along with the connecting device. Close by connecting the Brake Booster pushrod to the brake pedal while adding the retaining clip. At the same time, install and connect the stoplamp switch electrical connector then reinsert the left instrument panel insulator.