Recommended Procedure:

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2007 Ford RV Cutaway, 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the air cleaner inlet and ducting to verify no blocks or collapsed ducting. Inspect the air cleaner housing and filter for proper installation. Inspect the air filter restriction gauge to make sure the intake restriction is below the red marks. Inspect the exhaust system for damaged or blocked pipes.

Fig 1: Identifying F-Super Duty Air Filter Restriction Gauge

Courtesy of FORD MOTOR CO.

Fig 2: Locating E-Series Air Filter Restriction Gauge

Courtesy of FORD MOTOR CO.