2004 Ford F350 Owner Guide 3rd Printing - Page 263

Maintenance and Specifications Correct fluid level The transmission fluid should be checked at normal operating temperature 66°C-77°C (150°F-170°F) on a level surface. The normal operating temperature can be reached after approximately 30 km (20 miles) of driving. You can check the fluid without driving if the ambient temperature is above 10°C (50°F). However, if fluid is added at this time, an overfill condition could result when the vehicle reaches normal operating temperature. The transmission fluid should be in this range if at normal operating ADD COLD HOT DO NOT ADD temperature (66°C-77°C [150°F-170°F]). The transmission fluid should be in this range if at ambient temperature (10°C-35°C [50°F-95°F]). DON'T ADD IF IN CROSSHATCHED AREA • CHECK WHEN HOT IDLING IN PARK High fluid level Fluid levels above the safe range may result in transmission failure. An overfill condition of transmission fluid may cause shift and/or engagement concerns and/or possible damage. High fluid levels can be caused by an overheating condition. Adjusting automatic transmission fluid levels ADD COLD HOT DO NOT ADD DON'T ADD IF IN CROSSHATCHED AREA • CHECK WHEN HOT IDLING IN PARK ADD COLD HOT DO NOT ADD DON'T ADD IF IN CROSSHATCHED AREA • CHECK WHEN HOT IDLING IN PARK Before adding any fluid, make sure the correct type is used. The type of fluid used is normally indicated on the dipstick and also in the Lubricant specifications section in this chapter. Use of a non-approved automatic transmission fluid may cause internal transmission component damage. If necessary, add fluid in 250 ml (1/2 pint) increments through the filler tube until the level is correct. 263 2004 F250/350/450/550 (f23) Owners Guide (post-2002-fmt) USA English (fus)