In this video I go over a simple test that can be used on Ford vehicles to check for clogged EGR ports. This test is simple. First, hook up a hand held vacuum pump to the EGR valve. (The vehicle should be off and placed into park before hooking up vacuum pump.) Second, after ensuring that the vehicle is safely parked and secured, start the vehicle. Allow engine to reach operating temperature. Once the vehicle has warmed apply vacuum to the EGR valve. If the EGR ports in the intake are clear then the vehicle will most likely want to die out on you as shown in the video. If this action has little to no affect on the idle then it is likely that the ports are clogged.

Note: As mentioned in the video a faulty EGR valve can cause similar results as clogged EGR ports. Ensure that the EGR valve is in good working order before inspecting for clogged EGR ports. Also, a visual inspection of the EGR ports will be needed to confirm clogged ports.

Note: As mentioned in the video, some EGR systems, even ones equipped with a DPFE sensor may be designed differently rendering the instructions given in this video for this test useless. Please refer to your repair manual.

Here is a link explaining how to clean EGR ports:    • How To Fix a P0401 Due To Clogged EGR...  

Here is a link to a video going over the 3 most common causes of P0401 in Ford vehicles equipped with a DPFE sensor:    • Three Most Common Causes of P0401 on ...  

Disclaimer:

Barbour's Auto Help is not responsible for any damage or personal injury incurred in the process of performing any auto repairs done by you the viewer. Automotive repair is extremely dangerous. Repair your vehicle at your own risk. It is the viewers responsibility to verify all information and procedures as outlined in YOUR REPAIR MANUAL AND OWNERS MANUAL FOR YOUR VEHICLE. Owning and using a repair manual suited for your vehicle is essential for correctly and safely performing ANY repair to your vehicle. Always wear safety glasses, protective gloves and heed all instructions for use applicable to any piece of equipment you may use. Due to circumstances out of the control of Barbour's Auto Help, Barbour's Auto Help makes no guarantee that by the use of the information given in this video a quality repair will be made. Barbour's Auto Help makes no guarantee that the information provided is totally complete, synchronized and accurate. Verify everything using an appropriate repair manual. Verify everything with your own research.