Coolant Leak 5.0L DOHC – 2015 Ford F-150 & Mustang

FORD:

2015 F-150, Mustang

The article supersedes TSB 15-0073 to update the Service Labor Time Standards.

ISSUE:

Some 2015 F-150 and Mustang vehicles equipped with a 5.0L Dual Overhead Camshaft (DOHC) engine may exhibit a coolant leak caused by a heater outlet hose becoming disconnected at the heater outlet tube on the coolant pump.

ACTION:

Follow the Service Procedure steps to correct the condition.

SERVICE PROCEDURE

1. Check the engine build date. Refer to Workshop Manual (WSM), Section 303-01. Was the engine built on 11/20/2014 and through 1/26/2015?
   1. No – this procedure does not apply. Refer to WSM, Section 303-03 for normal diagnosis.
   2. Yes – proceed to Step 2.
2. Is the heater outlet hose disconnected from or leaking at the heater outlet tube on the coolant pump? (Figure 1)
   1. No – this procedure does not apply. Refer to WSM, Section 303-03 for normal diagnosis.
   2. Yes – proceed to Step 3.

Figure 1 – 16-0019

3. Drain the cooling system. Refer to WSM, Section 303-03.
4. Remove the air cleaner outlet pipe. Refer to WSM Section 303-12.
5. Remove the bolts and position the degas bottle aside.
6. Completely cover the accessory drive belts with waterproof plastic.
7. Disconnect the heater outlet hose from the heater outlet tube. (Figure 2A)

Figure 2 – 16-0019

8. Release the clamp and disconnect the lower degas bottle hose from the heater outlet tube. (Figure 2B)
9. Release the upper radiator hose clamp from the heater outlet water connection. (Figure 2C )
10. Pull the upper radiator hose T-connector spring clip up until the end of the clip is in the detent on the quick connect coupling and remove the upper radiator hose T-connector from the thermostat housing. (Figure 2D)
11. Remove the bolt and the heater outlet tube.
12. Install the new heater outlet tube and the bolt. Tighten to 10 Nm (89 lb-in.).
    1. Lubricate the O-ring seal on the heater outlet tube with clean engine coolant.
13. To install the remaining components, reverse the removal procedure.

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Heater Outlet Tube

VC-3-B Ford Genuine Fluid VC-13-G Yellow Concentrated Antifreeze/Coolant - 1 Gallon Yellow-colored, longer-life, ethylene glycol-based antifreeze/coolant for use in gasoline and diesel engines Provides year-round antifreeze, anti-boil and corrosion protection 50/50 mixture of coolant and distilled water provides freeze protection down to -34°F (-37°C) and boiling protection up to 265°F (129°C) Do not mix different colors or types of coolant in your vehicle Contains a bittering agent $30.40 Buy on Amazon Price incl. tax, excl. shipping Last update on 2026-06-18 / Affiliate links / Images from Amazon Product Advertising API

Motorcraft Orange Concentrated Antifreeze/Coolant

OPERATION	DESCRIPTION	TIME
160019A	2015 F-150 5.0L: Diagnose And Replace The Heater Outlet Tube (Do Not Use With Any Other Labor Operations)	0.9 Hr.
160019B	2015 Mustang 5.0L: Diagnose And Replace The Heater Outlet Tube (Do Not Use With Any Other Labor Operations)	1.2 Hr.

WARRANTY STATUS

Eligible Under Provisions Of New Vehicle Limited 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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