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Home >> Ford >> 2003 >> Cutaway 7.3 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 2656 (Engine Cooling - 6.7L Diesel Powertrain Secondary Cooling -- F250-F550 Super Duty) >> Removal And Installation >> Thermostat - High Temperature >> Removal and Installation

Removal and Installation

WARNING: This page is about a different car, the 2011 Ford Pickup, 2011 Ford F550 Super Duty, 2011 Ford F450 Super Duty, and 2011 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the powertrain secondary cooling system. For additional information, refer to COOLING SYSTEM DRAINING, FILLING AND BLEEDING  in this service information.
  2. Remove the grille. for additional information, refer to EXTERIOR TRIM & ORNAMENTATION article.
  3. Detach the RH air deflector pushpin from the high temperature thermostat cover.
    Fig 1: Locating RH Air Deflector Pushpin
    G07481711Courtesy of FORD MOTOR CO.
  4. Remove the 2 bolts, the high temperature thermostat cover and the high temperature thermostat.
    • Remove and discard the O-ring seal.
    • To install, tighten to 6 Nm (53 lb-in).
  5. To install, reverse the removal procedure.
    • Install a new high temperature thermostat O-ring seal and lubricate it with clean engine coolant.
  6. NOTE: Evaluate the cooling system condition before filling the cooling system. Failure to follow these instructions can damage the engine or cooling system.
  7. Evaluate the cooling system condition. For additional information, refer to COOLING SYSTEM CONDITION EVALUATION  in this service information.