Technical Service Bulletins
|Publication Date: October 30, 2009|
Some 2009-2010 F-150 vehicles may exhibit shudder/vibration on moderate to hard acceleration.
Follow the Service Procedure steps to correct the condition.
Adjust the rear axle pinion angle using the appropriate axle shim kit. Refer to the Instruction Sheet provided in the kit which provides installation procedures and Driveline Angle Corrections Chart.
The concerns described in this article mainly occur only when the vehicle is loaded with cargo or towing a trailer. The following are key points when resolving the concern.
- The vehicle must be evaluated in the state when the complaint occurs in order to verify the concern and validate a successful repair.
- If pinion angle is being adjusted to compensate for a loaded or trailer tow condition, there is risk that a vibration may occur with the vehicle unloaded.
- Verify suspension is not modified from the original configuration. Aftermarket leveling kits and rear leaf spring shackle kits change ride height which affects pinion angle and other critical driveline related operating angles. Vehicle must be at original specifications before accurate evaluation and diagnosis can be performed.
|NOTE:||FOR 2 PIECE DRIVESHAFT EQUIPPED VEHICLES IT MAY BE NECESSARY TO ORDER THE CENTER BEARING SHIM(S) (3 MAXIMUM) AND BOLTS.|
|NOTE:||HEAVY DUTY REAR AXLES HAVE 7 LUG NUTS.|
|PART NUMBER||PART NAME|
|9L3Z-4C088-EB||Axle Shim Kit – Light and Heavy Duty 4X2|
|9L3Z-4C088-FB||Axle Shim Kit – Light Duty 4X4|
|9L3Z-4C088-GB||Axle Shim Kit- Heavy Duty 4X4|
|EOTZ-4A209-A||Shim – Center Bearing (3 Maximum)|
|W711116-S439||Bolt – Center Bearing (2 req)|
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.
|092212A||2009-2010 F-150: Road Test, Install Wedge, Road Test, Install Wedge, Road Test (Covers Procedure A, B, C, Or D) (Do Not Use With Any Other Labor Operations)||2.7 Hrs.|
|092212B||2009-2010 F-150: Road Test, Install Wedge, Road Test, Lower Center Bearing By Adding 1/4 Inch Shims (Install Shim, Road Test, Install Shim, Road Test, Install Shim Road Test (Covers Procedure C/C1, D/D1 (Do Not Use With Any Other Labor Operations)||3.2 Hrs.|
|092212C||2009-2010 F-150: Road Test, Adjust The Center Bearing By Installing 2 Shims, Road Test, Remove Shim, Road Test, Remove Shim, Road Test, Install Wedge, Road Test (Covers Procedure E) (Do Not Use With Any Other Labor Operations)||3.2 Hrs.|
|BASIC PART NO.||CONDITION CODE|