Removal and Installation

WARNING: This page is about a different car, the 2003 Ford Pickup, 2003 Ford F550 Super Duty, 2003 Ford F450 Super Duty, 2003 Ford Excursion, and 2003 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect backpressure tube at the exhaust manifold.

Fig 1: Identifying Exhaust Backpressure Tube
Remove the retaining nut and the exhaust backpressure tube assembly.

Fig 2: Identifying Retaining Nut & Exhaust Backpressure Tube Assembly
Remove the thermostat housing stud bolt and bolt. Remove thernostat and discard O-ring. To install, reverse removal procedure.

Fig 3: Identifying Thermostat Housing Bolts