What You Should Know About Fail-Safe Cooling; How Fail-Safe Cooling Works - Ford EXPLORER 2015 Owner's Manual

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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
• the service engine soon indicator illuminates
1. Pull off the road as soon as safely possible and place the vehicle in P
(Park).
2. 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.
3. Turn the engine off and wait for it to cool before checking the coolant
level.
WARNING: Never remove the coolant reservoir cap while the
engine is running or hot.
4. If the coolant level is normal, you may restart your engine and
continue on.
5. 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.

What You Should Know About Fail-Safe Cooling

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.

How Fail-Safe Cooling Works

If the engine begins to overheat, the engine coolant temperature gauge
will move to the red (hot) area and:
The coolant temperature warning light will illuminate.
The service engine soon indicator will illuminate.
If the engine reaches a preset over-temperature condition, the engine
will automatically switch to alternating cylinder operation. Each disabled
cylinder acts as an air pump and cools the engine.
2015 Explorer (exp)
Owners Guide gf, 2nd Printing, September 2014
USA (fus)
Maintenance