Engine Mount: Testing and Inspection
Front Engine Mount Insulator TestINSPECTION
1. INSPECT FRONT ENGINE MOUNTING INSULATOR
a. Using a MITYVAC (Hand-Held Vacuum Pump), apply vacuum of 80 kPa (600 mm Hg, 25 in. Hg) and allow it to stand for 1 minute.
b. Check that there is no change in the needle movement.
c. 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.
2. INSPECT VSV FOR ACTIVE CONTROL ENGINE MOUNT
a. Inspect the VSV for open circuit.
Using an ohmmeter, check that there is continuity between the terminals.
Resistance: 19 - 21 Ohms at 20°C (68°F)
If there is no continuity, replace the VSV.
b. Inspect the 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.
c. Inspect the VSV operation.
1) Check that air flows from port G to port E.
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.
3. INSPECT VACUUM TANK