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2007 Ford Fusion Question: TRANSMISSION SERVICE

 

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Cherokee Larry, Tracy, CA, February 25, 2011, 08:32
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2007 FUSION 5SP AUTO TRANS. 58000 MILES
FLUID QUITE DISCOLORED FOR SUCH LOW MILEAGE BUT SHIFTING FINE? ANY TSB OR OTHER RECALLS? WHAT DOES A TRANS SERVICE ENTAIL. FOR A DO IT YOURSELF. THANKS CHEROKEE LARRY

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    goodguysdiesel from Good Guys Diesel, February 25, 2011, 08:52
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     Journeyman

    Do you have the 6spd auto trans or the FNR5 auto trans?
    TSB 12/08/08
    AISIN TRANSMISSION HARSH SHIFTING - NO
    DTCS - MILEAGE ABOVE 20,000 MILES (32,200 KM)
    ISSUE
    Some 2005-2007 Five Hundred, Montego, and 2006-2008 Fusion, Milan, 2006 Zephyr and 2007-2008 MKZ vehicles equipped with an Aisin automatic transmission may experience shift concerns when the vehicle mileage gets above 20,000 miles (32,200 km). Shifting concerns are generally noticed during passing maneuvers with transmission at temperatures greater than 212 °F (100 °C) operating temperatures. Symptoms may be present during downshift 5-3 at 35 MPH (56 km/h) and/or 4-3 at 20 MPH (32 km/h) with throttle opening at approximately 50% or greater and include:
    ^ Harsh shift and/or clunk noise
    ^ Delayed shift and/or perceived slip/engine flare
    ACTION
    Follow the Service Procedure steps to correct the condition.
    SERVICE PROCEDURE
    1. If diagnostic trouble codes (DTCs) are present in transmission control module (TCM) / powertrain control module (PCM), do not continue with this procedure. Perform normal diagnostics. Refer to Workshop Manual (WSM), Section 307-01B
    2. If no DTCs are present and mileage is below 20,000 miles (32,200 km) reprogram TCM / PCM and retest.
    3. If no DTCs are present and vehicle is over 20,000 miles (32,200 km), fluid should be drained and checked for excessive contamination. If fluid is not burnt, the valve body should be replaced and TCM / PCM updated to the latest calibration level. Refer to WSM, Section 307-01B for main control valve body replacement.

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