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Home >> GMC >> 1983 >> Forward Control 5.7 M, Automatic, 475/M40 >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Disc & Drum >> Bleeding >> Hydraulic Brake Bleeding

Hydraulic Brake Bleeding

Hydraulic system bleeding is necessary any time air has been introduced into system. Bleed brakes at all 4 wheels if master cylinder lines have been disconnected or master cylinder has been run dry. Bleed brakes with pressure bleeding equipment or by manually pumping brake pedal while using bleeder tubes.

Hydro-Boost bleeding involves bleeding power steering system as well as brake system.