2005-2007 Ford F-Super Duty STEERING WHEEL OSCILLATION REPAIR MANUAL

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This article supersedes TSB 07-5-7 to update the NOTE Parts. SETTING TIRE PRESSURE TO DOOR SPECIFICATION IS ONE OF THE SINGLE MOST ISSUE IMPORTANT MEASURES IN RESOLVING THIS Some 2005-2007 F-Super Duty vehicles may exhibit ISSUE. LOWERING TIRE PRESSURE WILL MAKE steering wheel oscillation (back and forth motion), THIS ISSUE WORSE. immediately following front or rear wheel impacts ROAD TEST (i.e. pavement joints, frost heaves, rough roads, etc.). Steering wheel motion is typically in the range 1. Ask customer what type of road surface and of ± 5 degrees, and typically dampens out in fewer speed generates the steering wheel oscillation. than five oscillations. This condition occurs mostly on F-250/F-350 4X4 vehicles, and is more evident 2. Road test vehicle on similar road surface and on trucks equipped with a gas engine. speed, to gain a feel for the customer’s issue. ACTION 3. If no issues are identified during the road test, do not proceed with the rest of this TSB. Refer to the following Service Procedure to minimize the steering wheel oscillations on impacts, STEERING DAMPER however, there may be some remaining minor INSPECTION/REPLACEMENT AND oscillation which would be considered normal. STEERING/SUSPENSION FASTENER TORQUE CHECK SERVICE PROCEDURE SUMMARY F-250/F-350 4X4 Applications: 1. Set tire pressure and road test vehicle to evaluate vehicle before proceeding with further 1. Remove existing steering damper and frame repairs. If issue is resolved, do not proceed attachment bracket. with the rest of this TSB. 2. Replace steering damper and frame mounting 2. If concern still exists, install a new steering bracket with steering damper and frame damper (frame-mounted bracket and steering bracket. damper assembly on F-250/F-350 4X4 applications only). For F-250/F-350 4X2 and all 3. Attach steering damper to frame bracket and F-450/F-550 applications, inspect damper for torque bolt to 76 lb-ft (103 N•m). leaks and replace if necessary, torque steering 4. Assemble bracket and shock assembly to the and suspension fasteners per Workshop frame with attachment bolt retainer pointing to Manual (WSM). rear of vehicle. Torque frame bracket nuts to 59 3. If concern still exists, check front alignment and lb-ft (80 N•m). reduce front caster. 5. Attach other end of shock to the steering drag 4. Replace redundant control steering wheel (if link and torque to 66 lb-ft (90 N•m). equipped and vehicle built prior to 10/8/2004). 6. Install damper bolt cap to assure a friendly VEHICLE INSPECTION – TIRE PRESSURE surface for the battery cable in case of casual contact. 1. Set tire pressures as indicated on the vehicle label (located on driver’s door label).

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