Genuine Honda Civic Brake Booster

Honda Civic Brake Booster Parts Questions & Answers

• Power Set, Master
  01469-TR3-A01
  Q: How to remove and install a Power Brake Booster Unit on Honda Civic?

  A: Depress the brake pedal several times with the engine off and make sure there is no change in the pedal reserve distance. Depress the pedal and start the engine. If the pedal goes down slightly, operation is normal. Start the engine and turn it off after one or two minutes. Depress the brake pedal several times slowly. If the pedal goes down farther the first time but gradually rises after the second or third depression, the booster is airtight. Depress the brake pedal while the engine is running, then stop the engine with the pedal depressed. If there is no change in the pedal reserve travel after holding the pedal for 30seconds, the booster is airtight. Power brake booster units should not be disassembled. Remove the Brake Master Cylinder. Disconnect the hose leading from the engine to the booster. Detach the Brake Lines from the clamp on the cowl. On CR-V models, remove the engine wiring harness clamp bolts and reposition the harness. Locate the pushrod clevis pin connecting the booster to the brake pedal, remove the clevis pin retaining clip with pliers and pull out the pin. Remove the four nuts holding the brake booster to the firewall. Slide the booster straight out from the firewall until the studs clear the holes and pull the booster, brackets and gaskets from the engine compartment area. Installation procedures are the reverse of those for removal. Tighten the booster mounting nuts. Also, be sure to use a new cotter pin on the clevis pin. Install the master cylinder and bleed it, followed by the rest of the brake system. Check and, if necessary adjust, the brake pedal height and freeplay.