OEM GMC Terrain Brake Booster

GMC Terrain Brake Booster Parts Questions & Experts Answers

• Brake Booster
  22807708
  Q: How to replace the power vacuum brake booster on GMC Terrain?

  A: To start replacing the power vacuum Brake Booster you need to disconnect the vacuum Brake Booster sensor connections then set them to the side. First remove the master cylinders and then unfasten the brake pressure modulator valve (BPMV) unit in combination with its retaining bracket. Next you must take the brake pedal position sensor out. Unscrew the Pushrod retainer nut of the vacuum Brake Booster and detach the Pushrod at its brake pedal end. Pull the vacuum booster forward with four installed nuts while ensuring the mounting studs exit the dash panel to remove the foam insulator. Check the gasket for damage when you take out the vacuum Brake Booster and replace it if defective. To begin install you must put the vacuum Brake Booster gasket in place followed by correct installation of the foam insulator. Put the Brake Booster Pushrod and mounting studs through the dash panel in their installation path. Fasten the vacuum Brake Booster nuts to 25 nm (18 lb ft) and reconnect the brake pedal Pushrod using proper 360-degree installation of the Pushrod retainer. Seal the brake pedal position sensor with a 25 nm torque while mounting the bpmv bracket and bpmv to the engine bay. Reinsert the master cylinder then put back both the vacuum Brake Booster vacuum sensor and hose.