1. Open the hood of your Ford F-250.
2. Locate the engine block. The EGR valve is located on the rear of the engine block, on the passenger side.
3. The EGR valve is a round, metal component with a vacuum hose attached to it.
7.3L Power Stroke:
1. Open the hood of your Ford F-250.
2. Locate the engine block. The EGR valve is located on the front of the engine block, on the driver's side.
3. The EGR valve is a round, metal component with a vacuum hose attached to it.