2005 Ford F250 Owner Guide 3rd Printing - Page 275

Maintenance and Specifications 1. Clean the reservoir cap before removal to prevent dirt and water from entering the reservoir. 2. Remove cap and rubber diaphragm from reservoir. 3. Add fluid until the level reaches the step in the reservoir. 4. Reinstall rubber diaphragm and cap onto reservoir. TRANSMISSION FLUID Checking automatic transmission fluid (if equipped) Refer to your Scheduled Maintenance Guide for scheduled intervals for fluid checks and changes. Your transmission does not consume fluid. However, the fluid level should be checked if the transmission is not working properly, i.e., if the transmission slips or shifts slowly or if you notice some sign of fluid leakage. Automatic transmission fluid expands when warmed. To obtain an accurate fluid check, drive the vehicle until it is at normal operating temperature (approximately 20 miles [30 km]). If your vehicle has been operated for an extended period at high speeds, in city traffic during hot weather or pulling a trailer, the vehicle should be turned off for about 30 minutes to allow fluid to cool before checking. 1. Drive the vehicle 20 miles (30 km) or until it reaches normal operating temperature. 2. Park the vehicle on a level surface and engage the parking brake. 3. With the parking brake engaged and your foot on the brake pedal, start the engine and move the gearshift lever through all of the gear ranges. Allow sufficient time for each gear to engage. 4. Latch the gearshift lever in P (Park) and leave the engine running. 5. Remove the dipstick, wiping it clean with a clean, dry lint free rag. If necessary, refer to Identifying components in the engine compartment in this chapter for the location of the dipstick. 6. Install the dipstick making sure it is fully seated in the filler tube. 7. Remove the dipstick and inspect the fluid level. The fluid should be in the designated area for normal operating temperature or ambient temperature. 275 2005 F250/350/450/550 (f23) Owners Guide (post-2002-fmt) USA_English (fus)