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.
ISSUE 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. Technical Service Bulletin # 09-20-14 Date: 091019 A/T - Uncommanded TCC Lock Up On 1-2 Upshift TSB 09-20-14 10/19/09 UN-COMMANDED TCC APPLY ON THE 1-2 SHIFT CAUSING PERCEPTION OF HESITATION AND/OR LACK OF POWER DURING SHIFT FORD: 2005-2010 Crown Victoria 2005-2006 Expedition 2005-2010 E-150, E-250, E-350, F-150 LINCOLN: 2005-2010 Town Car 2006-2008 Mark LT ME...