Housing
Ram technical service bulletin 9004539 for 2021-2022 Ram 1500.
- Bulletin number
- 9004539
- Component
- Visibility: defroster/defogger/HVAC system
- Summary
- HOUSING, Air Inlet For concern of whistle noise from right side of vehicle at 45+mph, please contact one of the following: FCA Redacted Content If no response in 15 minutes, proceed with repair. Please investigate HVAC to firewall connection between the fresh/recirculation housing and the firewall. Identify any obstructions that could be causing a gap. Loosen HVAC housing and retorque and/or install additional packing 68396044A$ at the air inlet housing to the firewall to eliminate any potential gap. Please email pictures of the issue with results to FCA Redacted Content.
Owners of these vehicles have filed 62 complaints in the visibility category.
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