EGR Vacuum Control Valve
NOTE:
EGR vacuum control valve may also be referred to as the EGR VCV.
- Disconnect vacuum hoses and remove EGR vacuum control valve. EGR vacuum control valve is located on top of engine, near EGR valve. See Figure.
- Plug port "Z" and connect vacuum pump to port "S" on EGR vacuum control valve. See Fig 1.
- Using vacuum pump, apply 11.8 in. Hg of vacuum to EGR vacuum control valve. Vacuum pump should be operated 3 times so applied vacuum on EGR vacuum control valve remains at 8.6-11.8 in. Hg of vacuum.
- Stop operating the vacuum pump after 3 times and note vacuum reading. Vacuum reading should decrease to 4.4-7.1 in. Hg of vacuum after 10 seconds. Replace EGR vacuum control valve is vacuum reading is not within specification.