Poor Air Conditioning (A/C) Performance – 2015-2017 Ford Mustang

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NHTSA ID Number: 10144920

Manufacturer Communication Number: TSB 18-2256

 

Summary

Some 2015-2017 Mustang vehicles may exhibit poor A/C performance. If the cause of this is found to be a refrigerant leak from the evaporator, it is recommended to replace only the evaporator as opposed to the entire climate control housing. Follow the Service Procedure steps to correct the condition.

 


2017 Ford Mustang
2017 Ford Mustang

 


3 Affected Products

Vehicle

MAKE MODEL YEAR
FORD MUSTANG 2015-2017

 


Model:

Ford

2015-2017 Mustang

 

Summary

This article supersedes TSB 18-2166 to update the causal part.

Issue: Some 2015-2017 Mustang vehicles may exhibit poor A/C performance. If the cause of this is found to be a refrigerant leak from the evaporator, it is recommended to replace only the evaporator as opposed to the entire climate control housing.

 

Action: Follow the Service Procedure steps to correct the condition.

 

Parts

Description Quantity Part Number
Evaporator Core Service Kit (2.3L Engine) 1 FR3Z-19860-A
Evaporator Core Service Kit (3.7L, 5.0L, & 5.2L Engine) 1 FR3Z-19860-B
Upper Instrument Panel Cowl Bolts (4 per package) 1 W715969-S442
Steering Shaft Bolt (4 per package) 1 W714878-S450
Thermostatic Expansion Valve Upper O-Ring Seal 1 6E5Z-19E889-D
Thermostatic Expansion Valve Lower O-Ring Seal 1 6E5Z-19E889-E
Motorcraft R-134a Refrigerant 1 YN-19 Poor Air Conditioning (A/C) Performance - 2015-2017 Ford Mustang | small light
Motorcraft PAG Refrigerant Compressor Oil 1 YN-12-D Poor Air Conditioning (A/C) Performance - 2015-2017 Ford Mustang | small light
Motorcraft Orange Concentrated Antifreeze/Coolant 1 VC-3-B Poor Air Conditioning (A/C) Performance - 2015-2017 Ford Mustang | small light

 

Drive Tool Name
1/4″ Impact
1/4″ Power Ratchet
1/4″ Ratchet
1/4″ Long Handle Ratchet
1/4″ Torque Wrench
1/4″ 6″ Extension
1/4″ 8″ Extension
1/4″ Universal Joint
1/4″ 10 mm Deep Socket
1/4″ Torx T27
1/4″ Torx T20
1/4″ 7 mm Socket
1/4″ 8 mm Socket
3/8″ Ratchet
3/8″ Torque Wrench
3/8″ 6″ Extension
3/8″ 10″ Extension
3/8″ 13 mm Deep Socket
3/8″ 15 mm Deep Socket
3/8″ 19 mm Deep Socket
3/8″ 13 mm Socket
3/8″ 15 mm Socket
3/8″ Hex #4
3/8″ Torx T40
3/8″ 13 mm Crows Foot
3/8″ 19 mm Crows Foot
3/8″ 13 mm Swivel Socket
Pocket Flathead Screwdriver
Medium Flathead Screwdriver
19 mm Wrench
13 mm Flex Head Ratchet Wrench
10 mm Flex Head Ratchet Wrench
Plastic Trim Tool
Metal Trim Tool

 

Service Procedure

1. Inspect the A/C system. Does the system show signs of leaks in components other than the evaporator?

(1). Yes – this article does not apply. Refer to Workshop Manual (WSM), Section 412-00.

(2). No – proceed to Step 2.

2. Remove the climate control housing. Refer to WSM, Section 412-00.

3. Disconnect and position the wiring harnesses aside. (Figures 1 – 2)

Figure 1

wiring harnesses

 

Figure 2

wiring harnesses

 

4. If equipped with dual zone climate control, disconnect the passenger blend door actuator electrical connector and remove the 3 upper plenum housing to blower motor fasteners. (Figure 3)

Figure 3

passenger blend door actuator

 

5. Remove the 4 upper plenum housing to blower motor fasteners. (Figure 4)

Figure 4

upper plenum housing to blower motor fasteners

 

6. Position the climate control housing to bulkhead insulator aside and remove the upper plenum housing from the climate control housing. (Figure 5)

Figure 5

climate control housing to bulkhead insulator

 

7. Remove the 2 footwell duct to climate control housing fasteners and remove the footwell duct. (Figure 6)

Figure 6

footwell duct to climate control housing

 

8. Remove the 2 heater core outlet pipe cover fasteners from the climate control housing and remove the cover. (Figure 7)

Figure 7

heater core outlet pipe cover

 

9. Remove the 2 climate control housing perimeter fasteners. (Figure 8)

Figure 8

climate control housing perimeter fasteners

 

10. Remove the 3 climate control housing perimeter fasteners. (Figure 9)

Figure 9

climate control housing perimeter fasteners

 

11. Remove the 4 climate control housing lower perimeter fasteners. (Figure 10)

Figure 10

climate control housing lower perimeter fasteners

 

12. Remove the 4 climate control assembly perimeter fasteners. (Figure 11)

Figure 11

climate control assembly perimeter fasteners

 

13. Position the bulkhead insulator over the thermostatic expansion valve (TXV). (Figure 12)

Figure 12

bulkhead insulator

 

14. Remove the plenum chamber and heater core as an assembly from the climate control core housing. (Figure 13)

Figure 13

plenum chamber and heater core

 

15. Remove the evaporator temperature sensor wiring seal from the slot in the climate control housing. (Figure 14)

Figure 14

evaporator temperature sensor

 

16. Remove the evaporator core from the climate control housing. (Figure 15)

Figure 15

evaporator core

 

17. Install the new evaporator core. Push down on the evaporator core firmly to make sure it is fully seated in the climate control housing. (Figure 16)

Figure 16

evaporator core

 

18. The new evaporator core may require a minor adjustment to the lines in order to fit properly in the climate control housing. (Figure 17)

Figure 17

minor adjustment to the lines

 

19. Install the evaporator temperature sensor wiring seal into the slot in the climate control housing. (Figure 18)

Figure 18

evaporator temperature sensor

 

20. Assemble the two climate control housing halves.

(1). Push down on the corners of the housing, not the center tab.

(2). The housing fasteners may need to be started in order to draw the two halves together due to the new evaporator core foam being uncompressed. (Figure 19)

Figure 19

housing fasteners

 

21. Install the bulkhead insulator over the TXV. (Figure 12)

22. Install the 4 climate assembly perimeter fasteners. (Figure 11)

23. Install the 4 climate control housing lower perimeter fasteners. (Figure 10)

24. Install the 3 climate control housing perimeter fasteners. (Figure 9)

25. Install the 2 climate control housing perimeter fasteners. (Figure 8)

26. Install the heater core outlet pipe cover and the 2 fasteners in the climate control housing. (Figure 7)

27. Install the footwell duct to the climate control housing and install the two fasteners. (Figure 6)

28. Install the upper plenum housing to the climate control housing and position the bulkhead insulator back on. (Figure 5)

29. Install the 4 upper plenum housing to blower motor fasteners. (Figure 4)

30. If equipped with dual zone climate control, connect the passenger blend door actuator electrical connector and install the 3 upper plenum housing to blower motor fasteners. (Figure 3)

31. Connect and position the wiring harness into the anchor points. (Figure 2)

32. Connect and position the wiring harness back together. (Figure 1)

33. Apply the supplied black putty to the outside of the climate control housing where the two case halves come together. (Figure 20)

Figure 20

black putty

 

34. Remove the old climate control housing assembly foam isolator and apply the new foam isolator. (Figure 21)

Figure 21

climate control housing assembly foam isolator

 

35. Reinstall the climate control housing. Refer to WSM, Section 412-00.

(1). Prior to connecting the lines, replace the rubber O-ring gaskets between the A/C lines and evaporator core.

(2). Prior to charging the A/C system, evacuate the system for a minimum of 45 minutes using a refrigerant service unit. After 45 minutes turn off the vacuum pump and monitor the low pressure gauge for a minimum of 15 minutes to make sure no other refrigerant leaks are present. Refer to WSM, Section 412-00.


1 Associated Document

Manufacturer Communications

18-2256
21 August 2018

https://www.nhtsa.gov/recalls?nhtsaId=10144920

MC-10144920-9999.pdf 1890.812KB

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NHTSA ID Number: 10143077

Manufacturer Communication Number: TSB18-2166

 

Summary

Some 2015-2017 Mustang vehicles may exhibit poor A/C performance. If the cause of this is found to be a refrigerant leak from the evaporator, it is recommended to replace only the evaporator as opposed to the entire climate control housing. Follow the Service Procedure steps to correct the condition.

 

1 Associated Document

Manufacturer Communications

18-2166
07 June 2018

https://www.nhtsa.gov/recalls?nhtsaId=10143077

MC-10143077-9999.pdf 1880.064KB

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