EGR Valve: Testing and Inspection

INSPECTION PROCEDURES

1. Start the engine and let it idle.





2. Disconnect the vacuum hose from the vacuum tube and install a vacuum pump to the valve.
3. Verify that the engine runs roughly or stalls at the specified vacuum.

Specification: 2.6 - 4.9 in Hg (65 - 125 mmHg, 8.7 - 10.6 kPa)

4. If not as specified, replace the EGR control valve.