TSB 24-2188 - 2003-2020 Expedition/Navigator + F-150 - 4WD - Grinding/Clicking/Ratcheting Noise From Front Wheel Area July 23, 2024

• One of the following vehicles:
- 2003-2020 Expedition/Navigator
- 2006-2018 F-150 (non-Raptor)
- 2019-2020 F-150 (non-Raptor) equipped with a torque-on-demand transfer case (with 4A position on the MSS as shown in Figure 2)

• Equipped with 4WD
• Grinding/clicking/ratcheting noise from the front axle area

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HazBeen said:

TSB 22-2219 4WD Grinding/Clicking/Ratcheting Noise From Front Wheel Area - July 23, 2024

This bulletin supersedes 22-2219. Reason for update: revised Part List and Service Procedure to clarify applicable steps by vehicle application

Model:

Ford 2003-2020 Expedition	4WD
2006-2020 F-150	Non-Raptor 4WD
Lincoln 2003-2020 Navigator	4WD

Markets: North American markets only

Issue: Some 2003-2020 Expedition/Navigator and 2006-2020 F-150 (non-Raptor) vehicles equipped with 4WD may exhibit grinding/clicking/ratcheting noise from the front wheel area. This may be due to partial engagement of the IWE. To correct this condition, follow the Service Procedure to remove and cap the vacuum supply line or to reprogram the TCCM and replace any worn vacuum and/or IWE components.

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



Warranty Status: Eligible under provisions of New Vehicle Limited Warranty (NVLW)/Service Part Warranty (SPW)/Service Part New Vehicle (SPNV)/Extended Service Plan (ESP) coverage. Limits/policies/prior approvals are not altered by a TSB. NVLW/SPW/SPNV/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool.

Labor Times

Description	Operation No.	Time
2003-2020 Expedition/Navigator, 2006-2020 F-150 (non-Raptor): Diagnose And Repair Vehicle Following The TSB Service Procedure	MT242188​	Actual Time​

Repair/Claim Coding

Causal Part:	3C247
Condition Code:	D4

For full information, including the Parts List and Service Procedure, see TSB 24-2188 attached below as a PDF document...

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HazBeen said:

You are correct that TSB 24-2188's torque-on-demand Service Procedure, removing and capping the Integrated Wheel End (IWE) system's vacuum source, fully deactivates 2-wheel drive capability.

Per the 2015 Expedition Workshop Manual, which essentially describes all the TSB-affected model years...

When the 4WD system is in 2WD mode, the 4X4 control module supplies a ground path to the IWE solenoid to apply vacuum to the IWEs (disengaging the front hubs from the front halfshafts). In 4WD mode, the 4X4 control module does not supply the ground path to the IWE solenoid, vacuum is not applied to the IWEs and an internal spring keeps the front hubs engaged to the front halfshafts.

The quoted-from Workshop Manual section and a supplemental illustration are attached below as PDF documents.

Good luck!

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