Lack Of Boosting Action (With Gauges)
Turn off engine, and set vacuum gauge reading to "0". Then, check fluid pressure when brake pedal is depressed. Pressure must be greater than the standard value. See FLUID PRESSURE SPECIFICATIONS table.
LACK OF BOOSTING ACTION FLUID PRESSURE SPECIFICATIONS
| Application | Psi (kPa) | |
|---|---|---|
| 14" Brakes | ||
| With Brake Pedal Force At 33 lbs. (147 N) | 114 (785) | |
| With Brake Pedal Force At 66 lbs. (294 N) | 284 (1961) | |
| 15" & 16" Brakes | ||
| With Brake Pedal Force At 33 lbs. (147 N) | 100 (686) | |
| With Brake Pedal Force At 66 lbs. (294 N) | 256 (1765) | |