pontiac Workshop Repair Guides

Pontiac Workshop Service and Repair Manuals

Delco-Moraine Single Diaphragm Type|Page 4899 > < Delco-Moraine Single Diaphragm Type|Page 4896
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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 4899 > < Delco-Moraine Single Diaphragm Type|Page 4896