Vacuum Pump With Gauge

Vacuum Pump:

USED TO
^ Apply a vacuum to vacuum actuated components to verify operation--an Exhaust Gas Recirculation (EGR) valve for example--.
^ Test for presence of vacuum at vacuum actuated components.
^ Monitor engine vacuum to detect the following problems:
- Exhaust System Obstructions
- Valves Sticking
- Broken Valve Springs
- Low Compression
- Ignition Timing Problems
- Vacuum Leaks