07-3-10 Lack Of Cooling Fan Operation - 6.0l - Diesel Truck Forum - TheDieselGarage.com
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07-3-10 Lack Of Cooling Fan Operation - 6.0l

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Publication Date: February 2, 2007

FORD: 2003-2005 Excursion
2003-2007 F-Super Duty
2004-2007 E-350, E-450

This article supersedes TSB 07-1-4 to update the part list.

Some 2004-2007 E-Series 350/450, 2003-2005 Excursion, and 2003-2007 F-Super Duty vehicles, equipped with the 6.0L diesel engine, may exhibit improper engine cooling fan clutch operation due to its wire harness being cut by the rotating cooling fan.

If the fan stator/shroud retaining clip is broken or missing, use the following Service Procedure to secure the wire harness to the fan stator/shroud.


A cut wire harness will prevent proper fan clutch operation. If the harness is damaged or severed, replace the Cooling Fan Clutch Assembly per the Work Shop Manual, Section 303-03. The harness may be cut because the molded-in retaining clip on the fan stator/shroud that secures the harness to the fan stator/shroud is broken or missing, allowing the loose harness to move into the rotating fan (Figure 1). Secure the harness to the fan stator/shroud using a screw to secure it to the stator/shroud.

Figure 1 - Article 07-3-10

Carefully drill a 1/8" (3.2 mm) diameter hole through both the tab on the harness and the stator/shroud as shown (Figure 2). Hold the harness fully down in the stator/shroud slot while drilling the hole in order to assure that the harness will be positioned away from the rotating fan.

Figure 2 - Article 07-3-10

Install and tighten the screw to 9 lb-in. (1 N-m).
Check to make sure that the harness is held securely to the stator/shroud and away from the fan.

4C3Z-8A616-AA Fan Clutch Asy (Vehicles Without Snow Plow Package)
4C3Z-8A616-SA Fan Clutch Asy (Vehicles With Snow Plow Package)
W506943-S424 Screw

Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.

070310A 2003-2007 Super Duty, 2003-2005 Excursion 6.0L: Replace The Fan Clutch, Includes Time To Secure The Wire Harness (Do Not Use With 8616A, 8005A, 8005AZW, 8146A, 8600A) 1.5 Hrs.
070310A 2004-2007 Econoline E-350/450 6.0L: Replace The Fan Clutch, Includes Time To Secure The Wire Harness (Do Not Use With 8616A, 8005A, 8005AZW, 8146A, 8600A) 1.9 Hrs.

8A616 01


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, Lincoln, or Mercury 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 to supercede this information with updates. The most recent information is available through Ford Motor Company's on-line technical resources.

Copyright 2007 Ford Motor Company

06 F-350 Crewcab 5.9 CR
03 Excursion 6.0
99 F-250 7.3
97 Dodge 3500 5.9
95 F-250 7.3
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