Some 2010-2011 F-150 Crew Cab 4X4 with 3.988 m (157") wheelbase built on or before 6/21/2011 may exhibit a shudder/vibration on moderate to hard acceleration. ACTION Follow the Service Procedure steps to improve the condition.
ISSUE Some 2010-2011 F-150 Crew Cab 4X4 with 3.988 m (157") wheelbase built on or before 6/21/2011 may exhibit a shudder/vibration on moderate to hard acceleration. ACTION Follow the Service Procedure steps to improve the condition. Technical Service Bulletin # 11-9-17 Date: 111003 Suspension - Shudder/Vibration On Acceleration TSB 11-9-17 10/03/11 SHUDDER/VIBRATION ON MODERATE TO HARD ACCELERATION 3.988 M (157 IN) WHEELBASE - BUILT ON OR BEFORE 6/21/2011 FORD: 2010-2011 F-150 ISSUE Some 2010-2011 F-150 Crew Cab 4X4 with 3.988 m (157") wheelbase built on or before 6/21/2011 may exhibit a shudder/vibration on moderate to hard acceleration. ACTION Follow the Service Procedure steps to improve the condition. SERVICE PROCEDURE It is important to confirm how the vehicle is driven the majority of the time (loaded or unloaded) as adjusting the driveline angle may result in a shudder or vibration if vehicle payload changes frequently. This procedure should only be used to...