Ford 2010 Explorer Sport Trac Manuel d'utilisateur télécharger pdf (Page 309)

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.

• Fail-Safe Cooling Mode: The

(Service engine

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.

• Engine Oil Overheat Mode: The

(Engine coolant temperature)

indicator will be on. The instrument cluster has no separate oil

temperature indicator.

Along with the

(Engine coolant temperature) indicator, the engine

coolant temperature gauge will read in the Hot (H) area.

Oil overheat can be triggered in severe driving conditions, such as

towing heavy loads over mountainous terrain in extreme hot

temperatures. As oil temperature increases, engine and vehicle speed

will be limited. The transmission will also shift differently.

When the engine oil has cooled, the vehicle will perform normally.

Maintenance and Specifications

309

2010 07+ Explorer Sport Trac (esp)

Owners Guide (own2002), 1st Printing

USA (fus)

1 2 ... 304 305 306 307 308 309 310 311 312 313 314 ... 343 344

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Ford 2010 Explorer Sport Trac Manuel d'utilisateur Page 309

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