2012 Ford F350 Super Duty Owner Guide 4th Printing - Page 385

Maintenance and Specifications 3. If this is not possible, wait a short period for the engine to cool. 4. Check the coolant level and replenish if low. WARNING: Never remove the coolant reservoir cap while the engine is running or hot. 5. Re-start the engine and take your vehicle to an authorized dealer. Driving the vehicle without repairing the engine problem increases the chance of engine damage. Take your vehicle to an authorized dealer as soon as possible. Engine fluid temperature management (except 6.8L V10) Your vehicle has been designed to pull a trailer, but because of the added load, the vehicle's engine may temporarily reach higher temperatures during severe operating conditions such as ascending a long or steep grade while pulling a trailer in hot ambient temperatures. At this time, you may notice your engine coolant temperature gauge needle move toward the H and the POWER REDUCED TO LOWER TEMP message may appear on the message center. You may notice a reduction in the vehicle's speed caused by reduced engine power. Your vehicle has been designed to enter this mode if certain high temperature/high load conditions take place in order to manage the engine's fluid temperatures. The amount of speed reduction will depend on the vehicle loading, towing, grade, ambient temperature, and other factors. If this occurs, there is no need to pull off the road. The vehicle can continue to be driven while this message is active. WARNING: To reduce the risk of collision and injury, be prepared that the vehicle speed may reduce and the vehicle may not be able to accelerate with full power until the fluid temperatures reduce. The air conditioning may also cycle on and off during severe operating conditions to protect overheating of the engine. When the engine coolant temperature decreases to a more normal operating temperature, the air conditioning will turn on once again. If you notice any of the following: • the engine coolant temperature gauge moves fully into the red (hot) area • the coolant temperature warning light illuminates 385 2012 F-250/350/450/550 (f23) Owners Guide, 4th Printing USA (fus)