Hill Holder Pressure Hold Valve: Removal

1. Drain brake fluid from reservoir of master cylinder.
2. Remove the adjusting nut and lock nut. See Figure .
3. Remove the cable clamp, and disconnect Pressure Hold Valve (PHV) cable from PHV. See Fig 1 .
   CAUTION: Carefully protect boots and inner cable from damage when disconnecting PHV cable.
4. Disconnect the brake pipes from PHV.
   CAUTION: Do not drop brake fluid onto body painting since it may dissolve paint. Do not damage hexagonal head of the flare nut by using pipe wrench without fail.
5. Detach PHV with support from side frame. See Fig 2 .
   CAUTION: Exercise utmost care to prevent foreign matter from entering into PHV when removing it.
6. Check removed parts as follows and replace damaged parts.
   • Checked if boots of PHV cable are damaged or degraded, the inner cable is damaged or corroded.
   • Check if the return spring is worn out, damaged or corroded.
   • Confirm that rolling sound of ball is heard with PHV inclined and lever rotates smoothly.

Fig 1: Removing Pressure Hold Valve Cable Clamp

Courtesy of SUBARU OF AMERICA, INC.

Fig 2: Detaching Pressure Hold Valve

Courtesy of SUBARU OF AMERICA, INC.