Coolant Leak From Expansion Tank – 2012-2014 Ford Expedition & Lincoln Navigator

FORD:	2012-2014 Expedition
LINCOLN:	2012-2014 Navigator

ISSUE:

Some 2012-2014 Expedition and Navigator vehicles may exhibit coolant loss from the coolant expansion tank cap.

ACTION:

Follow the Service Procedure steps to correct the condition.

SERVICE PROCEDURE

1. Flush the cooling system. Refer to Workshop Manual (WSM), Section 303-03.
2. Replace the thermostat and radiator cap during the flush procedure.
3. Remove the coolant expansion tank. Refer to WSM, Section 303-03.
4. Thoroughly clean the coolant expansion tank using fresh water.
5. Reinstall the coolant expansion tank. Refer to WSM, Section 303-03.
6. Fill and bleed the cooling system. Refer to WSM, Section 303-03.
   1. Use distilled water when refilling the cooling system.

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WARRANTY STATUS

Eligible Under Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage.
Warranty/ESP coverage limits/policies/prior approvals are not altered by a TSB. Warranty/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool.

DEALER CODING

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• Provides protection down to -34 degree fahrenheit
• Helps prevent rust and corrosion
• A patented organic acid corrosion inhibitor package to provide extended engine protection against rust and corrosion
• Contains 30 – 50 ppm of denatonium benzoate as a bittering agent

$21.99 −$6.50 $15.49

Buy on Amazon Price incl. tax, excl. shipping

Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API

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