Engine Unit: Inspection

WARNING: This page is about a different car, the 2003 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT FRONT ENGINE INSULATOR
1. Using MITYAC (Hand-Held Vacuum Pump), apply vacuum of 80 kPa (600 mmHg, 25 in.Hg) and allow it to stand for 1 minutes.
2. Check that there is no change in the needle movement.
3. Check that there is no fluid leakage caused by a break of a lower diaphragm.
  If the operation is not as specified, replace the insulator.
  
  Fig 1: Inspecting Front Engine Insulator
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT VSV FOR ACTIVE CONTROL ENGINE MOUNT
1. Inspect the VSV for open circuit.
  Using an ohmmeter, check that there is continuity between the terminals.
  - Resistance: 18 - 22 Ω at 20°C (68°F)
  If there is no continuity, replace the VSV.
  
  Fig 2: Inspecting VSV For Open Circuit
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Inspect VSV for ground.
  Using an ohmmeter, check that there is no continuity between each terminal and the body.
  
  If there is continuity, replace the VSV.
  
  Fig 3: Inspecting VSV For Ground
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Inspect VSV operation.
  1. Check that air flows from port G to port E.
    
    Fig 4: Inspecting VSV Operation
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Apply battery positive voltage across the terminals.
  3. Check that air flows from port F to port E.
    If operation is not as specified, replace the VSV.
INSPECT VACUUM TANK (See FUEL SYSTEM )

Fig 5: Applying Battery Positive Voltage Across Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002