OEM 2008 Toyota Sienna Brake Booster

2008 Toyota Sienna Parts Questions & Experts Answers

• Q: How to remove the Vacuum Brake Booster on 2008 Toyota Sienna?

  A: Changing the brake booster push rod or combining the diameter converting unit and brake requires avoiding any manipulation first. Start the process by extracting the front wheel followed by draining brake fluid and immediately cleaning paint surfaces touched by fluid. The first step requires users to disconnect the battery negative terminal. They should then uninstall the front door scuff plate LH along with the cowl side trim board LH after removing the nut and cowl trim board plate LH. Then unscrew the instrument panel finish panel sub-assembly lower LH through its two bolts and use a bolt-removal tool on the instrument panel safety pad insert sub-assembly No. 1. First remove the cowl top panel sub-assembly outer front and afterward take out the air cleaner assembly with hose. You can use Special Service Tool 09023-00101 to remove the brake actuator assembly in vehicles without VSC yet this tool serves to extract the ABS & traction actuator assembly in vehicles equipped with VSC. You should remove the brake line through front brake tube detachment of numbers 1, 2, 3, 4 along with numbers 1 and 2 of the rear brake tubes. First detach the push rod pin from the brake booster push rod assembly before disconnecting the brake master cylinder unit by removing its attached clip which allows the brake master cylinder reservoir hose separation from the brake master cylinder union while also releasing the vacuum hose from the brake vacuum check valve assembly. First remove the four nuts and clevis before you can pull out the brake booster combined with the master cylinder. Take out the brake booster gasket from the brake booster with master cylinder and detach the brake vacuum check valve assembly and its accompanying check valve grommet from the brake booster assembly.