LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2002 >> Taurus SES, 3.0 S >> Repair and Diagnosis >> External Pages >> Different car >> Section 414 (Engine Cooling System - Excursion & F250-F550 Super Duty Pickup) >> Diagnosis And Testing >> Engine Cooling >> Component Tests >> Thermostat - Mechanical Test

Thermostat - Mechanical Test

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.
  1. Remove the coolant thermostat.
  2. Check the coolant thermostat for seating. Hold the coolant thermostat up to a lighted background. Leakage of light around the thermostat valve at room temperature indicates that the coolant thermostat should be replaced. Some coolant thermostats have a small leakage notch at one location on the perimeter of the thermostat valve, which is considered normal.
  3. Immerse the coolant thermostat in a boiling antifreeze and water mixture.
  4. See the General Specifications chart for coolant thermostat opening temperatures.
scientia non olet · About LEMON Manuals