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- UN-COMMANDED TCC APPLY ON THE 1-2 SHIFT CAUSING PERCEPTION OF HESITATION AND/OR LACK OF POWER DURING SHIFT
| Publication Date: October 5, 2009 |
| 2005-2010 Crown Victoria |
2005-2010 E-150, E-250, E-350, F-150
| 2005-2010 Town Car |
2006-2008 Mark LT
| 2005-2010 Grand Marquis |
This article supersedes TSB 6-22-7 to update the Issue Statement, vehicle model years and model line covered.
Some 2005-2010 vehicles equipped with a 4R70/75E-W transmission may experience an un-commanded torque converter clutch (TCC) apply or TCC partial apply immediately after the 1-2 shift. This may result in the perception that the vehicle lacks power or that the transmission is up-shifting too early. Additional symptoms of uncommanded TCC apply when coming to a stop (before the 2-1 downshift is commanded), are engine stalling or lugging when engaging manual 2nd while at a stop and code P1742 may be present in continuous memory. However, the vehicle should operate normally in park, reverse, neutral and manual 1st gear.
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