OEM Scion Brake Booster

Scion Brake Booster Parts Questions & Experts Answers

• Brake Booster
  44610-21160
  Q: How to remove the Vacuum Brake Booster on Scion tC?

  A: The first step for Vacuum Brake Booster removal requires draining brake fluid followed by immediate washing of contaminated paint surfaces with fluid. First detach the front wiper arm head cap from its position after which remove the windshield wiper arm assemblies and blades from both left and right sides of the vehicle. You must remove the hood before taking away the left side cowl top seal and cowl top ventilator louver. Remove the windshield wiper motor and link together with the outer cowl top panel sub-assembly followed by the No. 1 cowl water extract hose. The technician should then remove the left lower cowl body mounting bracket and air cleaner cap sub-assembly and brake master cylinder sub-assembly. After separating the brake push rod clevis from the brake master cylinder disconnect the front left wheel followed by removing Special Service Tool 09023-00101 from the No. 5 front brake tube. Take off the brake tube clamps and unlock the three tubes for subsequent removal of the clamps themselves. The brake booster assembly removal process begins by loosening the clevis lock nut followed by clevis detachment from the brake booster then using a clip to disconnect the vacuum hose and completing the removal by unscrewing four nuts from the brake booster. First remove the check valve as well as the grommet from the brake booster while extracting the brake booster gasket.
• Brake Booster
  44610-52341
  Q: How to service and repair the vacuum brake booster on Scion xB?

  A: The vacuum brake booster servicing requires users to disconnect the negative terminal cable and wait for at least 90 seconds to avoid Air Bag and seat belt pretensioners activation. The service requires draining brake fluid while immediately cleaning paint affected areas from fluid touch. The first step requires removal of the air cleaner cap sub-assembly and tube disconnect of the clutch reservoir through its clip sliding mechanism. The maintenance team must remove the brake master cylinder subassembly after which the battery comes next. Disengage the clip holding the vacuum hose from the brake booster as a first step after the brake actuator assembly with bracket removal. First detach the brake pedal return spring with its clip and clevis pin while you make sure to loosen the push rod clevis lock nut as you move forward with 4 nuts and clevis removed to extract the brake booster together with its gasket.
• Brake Booster
  44610-52331
  Q: How to replace the Vacuum Brake Booster on Scion xA?

  A: The first step for Vacuum Brake Booster replacement requires draining brake fluid while immediately cleaning off paint when fluid adheres to painted surfaces. After removing the sub-assembly of the air cleaner cap disconnect the clutch reservoir tube by sliding the clip. The assembly requires Special Service Tool: 09023-00100 to remove the brake master cylinder before continuing with removal of the battery and brake actuator with bracket and brake booster assembly. The brake booster assembly removal begins with removing its vacuum hose by sliding the clip then discontinuing the brake pedal return spring and clip and clevis pin before loosening the push rod clevis lock nut and separating the four nuts and push rod clevis to extract the assembly along with its gasket. Install the brake booster assembly with a new gasket by fastening it with the four nuts and push rod clevis and torquing them to 13 Nm (130 kgf-cm, 9 ft. lbs.). The procedure requires lithium soap base glycol grease on the clevis pin before installing the clip and clevis pin so that the clip is placed correctly according to the illustration. Fasten the brake pedal return spring then attach the brake booster assembly vacuum hose. Follow this procedure when checking the brake booster push rod without vacuum by repeating pedal brake depression when the engine is off. The accessory tool used to measure push rod clearance should have chalk placed on its tip to check the 0 mm (0 inch) gap against the brake booster assembly. Special Service Tool: should be utilized to both secure the push rod and adjust the length of the protruding adjusting bolt when the brake pedal reaches minimum depression. The installation process requires service tool 09023-00100 to properly fit the brake master cylinder between the brake actuator with bracket while the clutch reservoir tube will link through clip insertion. Reinstall the air cleaner cap sub-assembly and the battery before filling the reservoir with brake fluid and bleeding the master cylinder and brake lines and clutch pipe line for M/T transaxle. Adjustments should be made to the brake pedal height and free play and also include a check of the reservoir fluid level as well as brake fluid leakage and the performance of the brake actuator using a hand-held tester.