2009 Ford Explorer Sport Trac Owner Guide 2nd Printing - Page 320
2009 Ford Explorer Sport Trac Manual
Page 320 highlights
Maintenance and Specifications • Decreased engine coolant concentrations below 40% will decrease the freeze protection characteristics of the engine coolant and may cause engine damage. • Refer to the chart on the coolant container to ensure the coolant concentration in your vehicle will provide adequate protection at the temperatures in which you drive. Vehicles driven year-round in non-extreme climates should use a 50/50 mixture of engine coolant and distilled water for optimum cooling system and engine protection. What you should know about fail-safe cooling (4.6L V8 engine only) If the engine coolant supply is depleted, this feature allows the vehicle to be driven temporarily before incremental component damage is incurred. The "fail-safe" distance depends on ambient temperatures, vehicle load and terrain. Fail-safe cooling and engine oil overheat mode (4.6L V8 only) If the engine coolant and/or engine oil overheat, the vehicle's fail-safe modes will reduce engine power to limit engine damage, even with a total loss of coolant. The vehicle's range and/or speed will be reduced, depending on vehicle load, terrain, and outside temperatures. The instrument cluster provides warnings for each mode. (Service engine • Fail-Safe Cooling Mode: The soon), (Engine oil pressure), and (Engine coolant temperature) indicators will be on. Along with these warning indicators, the engine coolant temperature gauge will read in the Hot (H) area. If the engine coolant reaches even hotter temperatures, fail-safe cooling mode limits engine power more and disables air conditioning. The engine will switch to alternating cylinder operation to help cool the engine. The engine will run rough in this mode. If continued operation increases the engine coolant temperature to a critical range, the engine will shut down. Steering and braking effort will increase. Once engine coolant temperature cools, the engine can be restarted. 320 2009 07+ Explorer Sport Trac (esp) Owners Guide, 2nd Printing USA (fus)