2004 Ford F150 Owner Guide 5th Printing - Page 256

Maintenance and Specifications BRAKE FLUID RESERVOIR The fluid level will drop slowly as the brakes wear, and will rise when the brake components are replaced. Fluid levels between the "MIN" and MAX MIN "MAX" lines are within the normal operating range; there is no need to add fluid. If the fluid levels are outside of the normal operating range the performance of your brake system could be compromised; seek service from your dealer immediately. 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 30 km [20 miles]). 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 30 km (20 miles) 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. 256 2004 F150 (f12) Owners Guide (post-2002-fmt) USA English (fus)