EGR Valve: Testing and Inspection

INSPECTION
1. Start the engine and let it idle.




2. Connect a vacuum pump as shown in the figure and apply vacuum.
3. Verify that the engine runs roughly or stalls at more than the specified vacuum.

Specification: 3.4-9.9 kPa (1.0-2.9 inHg)

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