2015 Ford F450 Super Duty Crew Cab Owner Manual Printing 2 - Page 241

Maintenance If the engine coolant temperature gauge moves fully into the red (hot) area, or if the coolant temperature warning or service engine soon messages appear in your information display: 1. Stop your vehicle as soon as safely possible and shift the transmission into Park (P). Leave the engine running until the coolant temperature gauge needle moves away from the H range. After several minutes, if this does not happen, follow the remaining steps. Switch the engine off and wait for it to cool before checking the coolant level. If the coolant level is normal, you may restart your engine and continue on. If the coolant is low, add coolant, restart the engine and take your vehicle to an authorized dealer. See Adding engine coolant in this chapter for more information. Refer to fail-safe cooling for additional information. Checking Automatic Transmission Fluid For scheduled intervals of the fluid checks and changes, See Scheduled Maintenance (page 439). 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 19 mi (30 km)). Verify that the transmission fluid temperature gauge, located on the instrument cluster, is within normal range. 1. 2. 3. Drive the vehicle 19 (30 km)until it reaches normal operating temperature. Park the vehicle on a level surface and engage the parking brake. With the engine running, parking brake engaged and your foot on the brake pedal, move the gearshift lever through all of the gear ranges. Allow sufficient time for each gear to engage. Latch the gearshift lever in P and leave the engine running. Remove the dipstick, wiping it clean with a clean, dry lint free rag. If necessary, refer to the Under Hood Overview in this chapter for the location of the dipstick. Install the dipstick making sure it is fully seated in the filler tube. Remove the dipstick and inspect the fluid level. The fluid should be in the designated area for normal operating temperature or ambient temperature. 2. 3. 4. 5. AUTOMATIC TRANSMISSION FLUID CHECK Have an authorized dealer check and change the transmission fluid and filter at the correct service interval. See Scheduled Maintenance (page 439). Do not use supplemental transmission fluid additives, treatments or cleaning agents. The use of these materials may affect transmission operation and result in damage to internal transmission components. 4. 5. 6. 7. Low Fluid Level Type A 238 Super Duty (), enUSA