1999 Ford F-150 Lariat 5.4L PO781
I got a 4R70W that has a PO781. This code sets after the transmission is warmed up. On decel from fourth into third gear at 25 MPH it harshly slams into third gear, the OD light will flash and PO781 sets. I checked VSS and seems okay. I also checked out put sp...
FIX posted 9/18/2004
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Message Closed w/FIX
Vehicle Data1999 Ford F-150 Lariat
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Message Closed w/FIX
Vehicle Data
1999 Ford F-150 Lariat
VIN | 1FTRX18L5X |
Engine | 5.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Affected | Po781 |
Conditions | Harsh Down Shift |