Active Engine Mount Electronic Vacuum Regulating Valve
The active engine mount system comprises:
- Two engine mounts
- Active engine mount Electronic Vacuum Regulating Valve (EVRV)
- Connecting vacuum pipes.
The active engine mount EVRV is attached to a bracket which is mounted on the right hand suspension turret, adjacent to the glow plug control modules.
Active engine mounts optimally dampen and isolate the Noise, Vibration and Harshness (NVH) generated by the engine combustion cycle. This noticeably enhances comfort for the vehicle occupants.
The Powertrain Control Module (PCM) controls the vacuum operated engine mounts via the active engine mount EVRV. When the EVRV solenoid is energized by the PCM, vacuum from the engine mounted vacuum pump is applied to the active engine mounts. The active engine mounts become soft when the vacuum is applied.
The active engine mounts operate at engine idle speed and are switched off when the engine speed goes above a predetermined threshold. The active engine mounts are switched off when the engine speed is more than 1250 Revolutions Per Minute (RPM).