2011 Lincoln MKZ Support Question
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Question posted by jamesc8487 on March 18th, 2014
Rear End Vibration At 50 Mph
Current Answers
Answer #1: Posted by BusterDoogen on March 18th, 2014 1:10 PM
TSB 11-2-14
02/07/11
AWD - DRIVELINE VIBRATION - HOWL NOISE ATHIGHWAY SPEEDS IN COLD TEMPERATURES -
BUILT ON OR BEFORE 8/13/2010 FORD:
2007-2011 Fusion LINCOLN:
2007-2011 MKZ MERCURY:
2007-2011 Milan
This article supersedes TSB 08-14-1 to add a production fix date, update the vehicle model years, title, Service Procedure and Part List.
ISSUESome 2007-2011 Fusion, Milan and MKZ vehicles equipped with all-wheel-drive (AWD) systems and built on or before 8/13/2010 may exhibit a driveline vibration or a howl noise at highway speeds in cold temperatures. ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
1. Place the vehicle in neutral, position it on a hoist. Refer to Workshop Manual (WSM), Section 100-02. 2. Index-mark both the driveshaft flanges at the power transfer unit (PTU) and rear differential unit (RDU). Refer to WSM, Section 205-01. 3. Disconnect the rear driveshaft from the PTU and from the RDU assembly. Refer to WSM, Section 205-01. a. Leave the driveshaft attached to the vehicle. 4. Rotate the driveshaft by hand, and check for any roughness feel to both the front and rear driveshaft bearings. a. If no roughness is felt from either bearing, do not continue with this article. Re-index the driveshaft. Refer to WSM, Section 205-01. b.If any roughness is felt from either bearing, replace the driveshaft assembly. Refer to WSM, Section 205-01.
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