buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

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Sensors and Switches - Brakes and Traction Control > < Excessive Brake Pedal Effort/VAC. Pump Inop. & Warning Light on|Page 2796

Riviera V6-231 3.8L Turbo VIN 3 4-bbl (1982)

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Vacuum Pump: Component Tests and General Diagnostics

    Before attempting to diagnose the vacuum pump system make certain the brake hydraulic system and the brake booster are in proper working order.

Sensors and Switches - Brakes and Traction Control > < Excessive Brake Pedal Effort/VAC. Pump Inop. & Warning Light on|Page 2796