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  • MrShift@Edmunds 03/15/11 12:30 pm PST

    TSB 08-21-11
    10/27/08

    4 WHEEL DRIVE/ALL WHEEL DRIVE - WITH
    CONTROL TRAC - SHUDDER ON
    ACCELERATION/DECELERATION OR BINDING ON
    SLOW TURNS

    FORD:
    1997-2008 Expedition, Explorer
    2006-2008 F-150
    2007-2008 Explorer Sport Trac
    2008 F-150

    LINCOLN:
    1998-2008 Navigator
    2003-2005 Aviator

    MERCURY:
    2005 Mountaineer
    2006-2008 Mountaineer

    ISSUE
    Various 1997-2008 vehicles equipped with either 4 wheel drive or all wheel drive and equipped with control trac may exhibit a shudder on acceleration/deceleration, binding in slow speed turns or noise from the front driveline and/or transfer case. The shudder/binding will occur with the vehicle being operated in the awd/auto 4x4 mode. The shudder/binding may be due to incorrect tire circumference or improper tire inflation pressures.


    NOTE VEHICLES ON THE LIST MAY REQUIRE REPLACEMENT OF TIRE/S IF THE TIRE CIRCUMFERENCE AVERAGE BETWEEN THE FRONT AND REAR AXLES ARE OUTSIDE OF THE 1/2 INCH SPECIFICATION OR IF THE TIRE CIRCUMFERENCE FROM SIDE TO SIDE ON EITHER AXLE EXCEEDS 1/2 INCH DIFFERENCE, THE SMALLER TIRE(S) MUST BE REPLACED.

    NOTE ONLY USE REPLACEMENT TIRE AND WHEEL THAT ARE THE SAME SIZE, LOAD INDEX, SPEED RATING AND TYPE (SUCH AS P-METRIC VERSUS LT-METRIC OR ALL-SEASON VERSUS ALL-TERRAIN) AS THOSE ORIGINALLY PROVIDED BY FORD. THE RECOMMENDED TIRE AND WHEEL SIZE MAY BE FOUND ON EITHER THE SAFETY COMPLIANCE CERTIFICATION LABEL OR THE TIRE LABEL WHICH IS LOCATED ON THE B-PILLAR OR EDGE OF THE DRIVER'S DOOR.

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