oldsmobile Workshop Repair Guides

Oldsmobile Workshop Service and Repair Manuals

Delco-Moraine Single Diaphragm Type|Page 2221 > < General Service|Page 2218
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Vacuum Brake Booster: Testing and Inspection
Delco-Moraine Single Diaphragm Type

Hard Pedal

1.

Internal vacuum leak.

2.

Faulty control valve.

Brakes Grab

1.

Faulty control valve.

Slow Or No Release

1.

Faulty pushrod adjustment.

2.

Bind in linkage.

Delco-Moraine Single Diaphragm Type|Page 2221 > < General Service|Page 2218