mitsubishi Workshop Repair Guides

Mitsubishi Workshop Service and Repair Manuals

Thermo Valve, EGR <--> [Thermal Vacuum Valve, EGR]|Locations|Page 2609 > < Thermo Valve, EGR <--> [Thermal Vacuum Valve, EGR]|Locations|Page 2607
Page 1
background image

Thermo Valve, EGR: Testing and Inspection

Fig. 34  Testing The Thermo Valve (Federal Only)

1.

Disconnect the vacuum hoses from the thermo valve and connect a hand vacuum pump to the nipple of the thermo valve.

2.

Apply vacuum and verify that when the engine is cold (coolant temperature less than 50 degrees C or 122 degrees F) vacuum leaks.

3.

Allow the engine to warm up (coolant temperature greater than 80 degrees C or 176 degrees F), apply vacuum and verify that vacuum is held.

4.

If it is necessary to remove the thermo valve do not apply a wrench to the resin part of the valve. Re-install the thermo valve using 3M locking
sealant 4171. Torque the thermo valve to 20-40 Nm or 15 - 30 ft. lbs.

5.

Reconnect the vacuum hoses.

Thermo Valve, EGR <--> [Thermal Vacuum Valve, EGR]|Locations|Page 2609 > < Thermo Valve, EGR <--> [Thermal Vacuum Valve, EGR]|Locations|Page 2607