Active Control Engine Mount: Inspection: Inspection

INSPECT FRONT ENGINE MOUNTING INSULATOR ASSEMBLY
1. Disconnect the vacuum hose from the front engine mounting insulator assembly.
2. Using a vacuum pump, apply vacuum of 80 kPa (600 mmHg, 25 in.Hg) and wait for 1 minute.
  
  Fig 1: Checking Vacuum Hose
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check that there is no change in the needle movement of the vacuum pump gauge.
  OK
  
  Vacuum pressure holds.
4. Check that there is no fluid leakage caused by a break in the diaphragm.
5. Reconnect the vacuum hose.