Whistle Noise From Center Of Vehicle And/Or Climate Control Housing – 2021 Ford Bronco

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NHTSA ID Number: 10206872

Manufacturer Communication Number: TSB 22-2018

Summary

Some 2021 Broncos may exhibit a whistle noise coming from the front center of the vehicle and/or the climate control housing. This may be due to the sealing on the climate control case. To correct the condition, follow the Service Procedure to apply butyl tape to cover small holes in the fresh air inlet door.

 


 


This bulletin supersedes 21-2352. Reason for update: Remove The Production Fix Date

 

Model:

FordeBay

2021 Bronco

 

Summary

This article supersedes TSB 21-2352 to update the Title, Issue and Action.

 

Issue: Some 2021 Broncos may exhibit a whistle noise coming from the front center of the vehicle and/or the climate control housing. This may be due to the sealing on the climate control case. To correct the condition, follow the Service Procedure to apply butyl tape to cover small holes in the fresh air inlet door.

 

Action: Follow the Service Procedure to correct the condition on vehicles that meet all of the following criteria:

  • 2021 Bronco
  • Whistle noise coming from the front center of the vehicle and/or the climate control housing

 

Parts

Service Part NumberQuantityDescription
Obtain LocallyAs NeededButyl Tape, 3M® 08612 Windo Weld Round Ribbon Sealer Or Equivalent

As Needed indicates the amount of the part may vary and/or is not a whole number. Parts can be billed out as non-whole numbers, including less than 1.

 

Service Procedure

1. Open a front side window and cycle the heating, ventilation, and air conditioning (HVAC) control module recirculation mode to the ON and OFF setting while driving above 40 mph (64 km/h).

2. Is a whistle noise heard with the HVAC control module recirculation setting in the ON position?

(1). Yes – proceed to Step 3.

(2). No – this article does not apply. Refer to Workshop Manual (WSM), Section 412-00.

3. Turn off the HVAC control module recirculation mode.

4. Remove the cowl panel grille. Refer to WSM, Section 501-02 Front End Body Parts > Removal and Installation > Cowl Panel Grille.

5. Apply butyl tape over the 2 small holes on the top and bottom section of the fresh air inlet door of the climate control housing. (Figure 1)

NOTE: This may be a blind operation and the fresh air inlet door needs to be in fresh air mode so it remains out of the way.

Figure 1

 

6. Inspect the area the butyl tape was installed for correct location. Apply more tape if required.

7. Reinstall the cowl panel grille. Refer to WSM, Section 501-02 Front End Body Parts > Removal and Installation > Cowl Panel Grille.

 


1 Affected Product

Vehicle

MAKEMODELYEAR
FORDeBayBRONCO2021

 


1 Associated Document

Manufacturer Communications

22-2018
27 January 2022

MC-10206872-0001.pdf 121.164KB

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NHTSA ID Number: 10202709

Manufacturer Communication Number: TSB 21-2352

Summary

Some 2021 Bronco built on or before 24-Aug-2021 may exhibit a whistle noise coming from the front center of the vehicle and/or the climate control housing. This may be due to the sealing on the climate control case. To correct the condition, follow the Service Procedure to apply butyl tape to cover small holes in the fresh air inlet door.

 

1 Associated Document

Manufacturer Communications

21-2352
13 October 2021

MC-10202709-0001.pdf 108.305KB

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