1.8L & 2.5L (EEC Systems)
WARNING: This page does not describe the selected car, but rather 532 other vehicles, including the 2018 Ford C-Max, 2017 Ford Fusion, 2017 Ford C-Max, 2016 Ford Fusion, and 2016 Ford C-Max. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition off. Disconnect and plug vacuum line to EGR valve. Attach hand vacuum pump to EGR valve. Start engine. Warm to normal operating temperature.
- Allow engine to idle. Slowly apply vacuum to EGR valve. Engine should stumble or stall. If not, check for defective EGR valve, or blocked EGR passages.