Section 06-07B: Brake, Power, Vacuum Pump, 7.3L Diesel Engine | 1996 F-250, F-350 and F-Super Duty Workshop Manual |
On diesel engine-equipped vehicles, vacuum is supplied from a vacuum pump (2A451). The vacuum pump is driven by a drive belt (8620).
7.3L diesel-equipped vehicles use a low vacuum indicator switch.
The low vacuum indicator switch is located on the left side of the engine compartment near the vacuum pump. The low vacuum indicator switch will turn on the brake warning lamp when a low vacuum situation occurs.