NHTSA ID Number: 10249787
Manufacturer Communication Number: TSB 24-2021
Summary
This article supersedes TSB 23-2213 to revise Figure 1, add 2024 vehicles and the part list. Some 2021-2024 Bronco vehicles may exhibit a whistle noise below the lower left windshield area at the bottom of the A-pillar. This may be due to a missed body sealer application at the factory.
This bulletin supersedes 23-2213. Reason for update: revise Figure 1, add 2024 vehicles and the part list
Model:
Ford
2021-2024 Bronco |
Issue: Some 2021-2024 Bronco vehicles may exhibit a whistle noise below the lower left windshield area at the bottom of the A-pillar. This may be due to a missed body sealer application at the factory. To correct this condition, follow the Service Procedure to reseal the affected body seam.
Action: Follow the Service Procedure to correct the condition on vehicles that meet all of the following criteria:
- 2021-2024 Bronco
- Whistle noise from the lower left windshield area
Parts
| Service Part Number | Package Order Quantity | Description |
| Obtain Locally | As Needed | Butyl Tape, 3M™ 08612 Window Weld Round Ribbon Sealer Or Equivalent |
| Obtain Locally | As Needed | 3M™ 2 Inch Wide Masking Tape Or Equivalent |
Service Procedure
1. Tape off the left side of the cowl panel and drive the vehicle above 50 mph (80 km/h). Did taping off the cowl resolve the whistle noise? (Figure 1)
Figure 1
(1). Yes – proceed to Step 2.
(2). No – this article does not apply. Refer to Workshop Manual (WSM), Section 100-04.
2. Remove the left A-pillar trim. Refer to WSM, Section 501-05.
3. Visually inspect for a gap in the sheet metal at the bottom of the A-pillar where it joins the rear engine compartment wall. Is a gap present? (Figure 2)
Figure 2
(1). Yes – proceed to Step 4.
(2). No – this article does not apply.
4. Apply butyl to fill the gap between the two metal panels and eliminate the air entry.
5. To assemble, reverse the removal procedure.
4 Affected Products
Vehicle
| MAKE | MODEL | YEAR |
| FORD | BRONCO | 2021-2024 |
1 Associated Document
Manufacturer Communications
24-2021
23 January 2024
MC-10249787-0001.pdf 1436.748KB
NHTSA ID Number: 10239096
Manufacturer Communication Number: TSB 23-2213
Summary
Some 2021-2023 Bronco vehicles built on or before 31-May-2023 may exhibit a whistle noise below the lower left windshield area at the bottom of the A-pillar. This may be due to a missed body sealer application at the factory. To correct this condition, follow the Service Procedure to reseal the affected body seam.
1 Associated Document
Manufacturer Communications
23-2213
06 July 2023
MC-10239096-0001.pdf 509.862KB
NHTSA ID Number: 10232486
Manufacturer Communication Number: TSB 23-2032
Summary
Some 2021-2022 Bronco vehicles may exhibit a whistle noise below the lower left windshield area at the bottom of the A-pillar. This may be due to a missed body sealer application at the factory. To correct this condition, follow the Service Procedure to reseal the affected body seam.
1 Associated Document
Manufacturer Communications
23-2032
02 February 2023
MC-10232486-0001.pdf 143.754KB
NHTSA ID Number: 10218615
Manufacturer Communication Number: TSB 22-2306
Summary
Some 2022 Bronco vehicles may exhibit a whistle noise below the lower left windshield area at the bottom of the A-pillar. This may be due to a missed body sealer application at the factory. To correct this condition, follow the Service Procedure to reseal the affected body seam.
1 Associated Document
Manufacturer Communications
22-2306
01 August 2022
MC-10218615-0001.pdf 146.191KB
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SEOCONTENT-START
TECHNICAL SERVICE BULLETIN
Whistle Noise At Lower Left Windshield Area
24-2021
23 January
2024 This bulletin supersedes 23-2213. Reason for update: revise Figure 1, add 2024 vehicles and the part list
Model:
Ford
2021-2024 Bronco
Issue: Some 2021-2024 Bronco vehicles may exhibit a whistle noise below the lower left windshield area at the bottom of the A-pillar. This may be due to a missed body sealer application at the factory. To correct this condition, follow the Service Procedure to reseal the affected body seam.
Action: Follow the Service Procedure to correct the condition on vehicles that meet all of the following criteria:
• 2021-2024 Bronco
• Whistle noise from the lower left windshield area Parts
Service Part Number Quantity Description
Ontain Locally As Needed Butyl Tape, 3M™ 08612 Windo Weld Round Ribbon Sealer Or Equivalent Ontain Locally As Needed 3M™ 2 Inch Wide Masking Tape Or Equivalent
Warranty Status: Eligible under provisions of New Vehicle Limited Warranty (NVLW)/Service Part Warranty (SPW)/Special Service Part (SSP)/Extended Service Plan (ESP) coverage. Limits/policies/prior approvals are not altered by a TSB. NVLW/SPW/SSP/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool. Labor Times Description 2021-2024 Bronco: Install Tape, Road Test (Pass) Inspect Gap And Apply Butyl Sealer If Necessary (Do Not Use With Any Other Labor Operations) Operation No.
242021A Time 1.2
Hrs.
Repair/Claim Coding
Causal Part: 5802012
Condition Code: 68
Service Procedure
1. Tape off the left side of the cowl panel and drive the vehicle above 50 mph (80 km/h). Did taping off the cowl resolve the whistle noise? (Figure 1)
Figure 1 (1). Yes – proceed to Step 2.
(2). No – this article does not apply. Refer to Workshop Manual (WSM), Section 100-04.
2. Remove the left A-pillar trim. Refer to WSM, Section 501-05.
3. Visually inspect for a gap in the sheet metal at the bottom of the A-pillar where it joins the rear engine compartment wall. Is a gap present? (Figure 2)
Figure 2 (1). Yes – proceed to Step 4.
(2). No – this article does not apply.
4. Apply butyl to fill the gap between the two metal panels and eliminate the air entry.
5. To assemble, reverse the removal procedure.
© 2024 Ford Motor Company All rights reserved.
NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and
equipment to do the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information that could assist in proper vehicle service. The procedures should not be performed by “do-it-yourselfers”. Do not assume that a condition described affects your car or truck. Contact a Ford or Lincoln dealership to determine whether the Bulletin applies to your vehicle. Warranty Policy and Extended Service Plan documentation determine Warranty and/or Extended Service Plan coverage unless stated otherwise in the TSB article. The information in this Technical Service Bulletin (TSB) was current at the time of printing. Ford Motor Company reserves the right de this information with updates. The most recent information is available through Ford Motor Company’s on-line technical resources.
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