F 550 2WD Super Duty V10-6.8L VIN Z Bi-Fuel (2001)
Hydraulic Fluid Accumulator: Testing and Inspection
1. Start and run the engine.
2. Stop the engine.
3. Apply the brakes. The accumulator in the Hydro-Boost power brake booster should retain enough pressure for at least two power assisted brake
operations. If no power assist is felt, replace the Hydro-Boost power brake booster and retest the system. Refer to: Power Brake Assist / Hydraulic
Brake Booster, See: Hydraulic Brake Booster/Service and Repair
