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Shifty Ford E-Series

Some 2011-2013 Ford E-150, E-250 and E-350 vans equipped with a 4R75E transmission may exhibit an un-commanded torque converter clutch (TCC) apply or partial apply immediately after the 1-2 shift.

This may result in the perception that the vehicle lacks power or the transmission is up-shifting too early. DTC P1742 may be stored in the PCM. In some vehicles while operating in manual 2nd gear and when coming to a stop, the vehicle may experience a loss of rpm.

1. Install IDS scan tool.

2. Road test and monitor TCC% solenoid command state – duty cycle and TC SLIP ACT torque converter clutch slippage – rpm, while in 2nd, 3rd or 4th gear with a TCC% reading 0.

  a. If TCC% = 0 and TC SLIP ACT = less than 20 rpm, then inspect the number 7 check ball in the main control valve body for damage. Replace as required. NOTE: This procedure is performed in 2nd gear auto (not manual) after the PCM commands 2nd gear and before the vehicle speed sensor (VSS) reads 35 mph.

  b. If you receive any other reading, this bulletin does not apply. Refer to workshop manual section 307-01A for normal diagnostics.

PART                                                P/N

Check ball…………………………….EOAZ-7E195-B

Gasket – valve body upper…………1L3Z-7C155-AA

Gasket – valve body lower…………1W7Z-7D100-AB

Motorcraft Mercon LV ATF…………XT-10-QLV

Tags: Ford  transmission 
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