S2023000012

STAR ONLINE PUBLICATION
Case Number: S2023000012
Release Date:
02/24/2020
Symptom/Vehicle Issue: Wind Whistle Noise From Glove Box Area Above 35 MPH
Discussion: When putting the climate control system in Recirculation Mode, some
vehicles may exhibit a high pitched whistle heard behind the glove box at speeds
ranging from 35 mph+
Test:
Bring Vehicle up to the speed until the wind whistle noise is audible.
Cycle the HVAC recirculation door (1) and note any changes.
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online does
not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear to be
similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the appropriate
course of action.
Contact STAR Center, or your Technical Assistance Center Via TechCONNECT or eCONTACT ticket if no
solution is found
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If the whistle noise changes when cycling the recirculation door, please follow the
repair procedure detailed below.
Repair Procedure:
Removal of 1mm “hard stop” rib behind inlet door
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online does
not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear to be
similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the appropriate
course of action.
Contact STAR Center, or your Technical Assistance Center Via TechCONNECT or eCONTACT ticket if no
solution is found
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Tools Required:
* Flashlight
* Phillips Screw Driver
* T20 TorxBit Screw Driver
* Long Cylindrical File
* wiTECH2
1. Remove Glove Box
2. Remove Blower Motor:
 Disconnect Wire Harness
 Using a Philips head screw driver, remove the foot-well light from the bottom of
the HVAC (one screw)
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online does
not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear to be
similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the appropriate
course of action.
Contact STAR Center, or your Technical Assistance Center Via TechCONNECT or eCONTACT ticket if no
solution is found
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 Using a T20 TorxBit screw driver while holding the bottom of the blower, remove
the three blower mounting screws. Carefully lower the blower out of the HVAC
and set aside
3. Remove Air Filter
Connect wiTECH2 Diagnostic Scan Tool:
4. Push the recirc button on the hvac control head.
5. From the ECU Topology Screen select HVAC. Once in HVAC, select “Data” tab.
6. Once under data tab, scroll to Recirculation Actuator Door Feedback Voltage.
Take note of voltage:
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online does
not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear to be
similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the appropriate
course of action.
Contact STAR Center, or your Technical Assistance Center Via TechCONNECT or eCONTACT ticket if no
solution is found
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7. Select “Actuators” WiTECH tab. Then select Recirculation Door Actuator Position
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online does
not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear to be
similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the appropriate
course of action.
Contact STAR Center, or your Technical Assistance Center Via TechCONNECT or eCONTACT ticket if no
solution is found
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8. Set door to desired percentage (60.0). Select start to command door to 60%.
9. Go back to data tab, scroll to Recirculation Actuator Door Feedback Voltage,
read new voltage. After repair is completed, voltage should change by ~0.010.02V from initial.
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online does
not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear to be
similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the appropriate
course of action.
Contact STAR Center, or your Technical Assistance Center Via TechCONNECT or eCONTACT ticket if no
solution is found
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10.
With the door at 60% travel, look behind the inlet door shaft on the left side
of the recirc grill and you will see the door hard stop with a 1mm rib on the edge.
11.
With the blower motor removed and entering in between the “pre-swirl”
blades, remove the 1mm hard-stop rib using a long cylindrical file.
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online does
not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear to be
similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the appropriate
course of action.
Contact STAR Center, or your Technical Assistance Center Via TechCONNECT or eCONTACT ticket if no
solution is found
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Version 4.2 02/06/2017
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12.
To verify that enough of the rib was removed, drive the inlet door back to
recirculation mode. The feedback voltage should change by 0.01-0.02V
compared to baseline voltage recorded initially as the door closes further.
Verification:
Reassemble blower motor, foot well light, filter, and filter cover to the HVAC assembly
Reassemble glovebox to IP
If procedure was successful, the whistle heard in vehicle before will no longer occur at
highway speeds
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online does
not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear to be
similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the appropriate
course of action.
Contact STAR Center, or your Technical Assistance Center Via TechCONNECT or eCONTACT ticket if no
solution is found
FCA US LLC
Version 4.2 02/06/2017