Replaces the 6R80 lead frame, case pass-through connector, connector seal and filter to cure solenoid codes, harsh 1-2 shifts and limp mode on Ford F-150s.
This is the one-pan-drop version of the most common electrical repair on the Ford 6R80. If your F-150, Expedition, Navigator, Mustang or Transit is throwing speed sensor or solenoid codes, launching in a high gear, or dropping into limp mode once it warms up, the molded lead frame is the usual cause, and the job puts your hands on three other parts while the pan is off. This kit bundles all four: the lead frame (replaces 926-149, AL3Z-7G276-A, -B, -D and AL3P-7G276-AG), the pass-through connector (6L2Z-7G276-AA), the FKM connector bore seal (AL3Z-7F401-A) and an FT-188 / BL3Z-7A098-A filter with gasket.
The 6R80 is run by the engine computer, not a stand-alone transmission module, so every command and every sensor reading has to cross the case wall through one round connector and then travel along the lead frame. ATRA's technical writers list four sensors that live on the 6R80 valve body assembly: turbine speed, output speed, the internal range sensor and the fluid temperature sensor. The lead frame ties them together with the seven solenoid terminals. When a trace cracks from heat cycling, the computer loses a signal, cannot calculate gear ratio, and falls back to failsafe. In failsafe from 5th or 6th the unit holds 5th, which is why so many owners describe a sluggish takeoff in a tall gear rather than a total no-move.
Use a scan tool that reads PCM transmission data and watch turbine speed, output speed and fluid temperature through a full warm-up drive. A lead frame fault shows one signal dropping out or spiking while vehicle speed is steady. Do not condemn the part on temperature alone: Transmission Digest documented a 2013 F-150 that got a new PCM and a valve body with a lead frame, and the erratic temperature stayed because an overheated low/reverse clutch pack sat right above the sensor. If the fluid is burnt and the pan is full of friction material, the problem is bigger than wiring. Our 6R80 valve body testing guide walks through separating electrical faults from worn bores, and the Expedition shift problems guide covers the same checks on the SUV.
The listing covers the 6R80 in the 2010-2020 F-150, 2017-2020 F-250/F-350 Super Duty, 2012-2017 Expedition, 2011-2017 Mustang, Transit 150/250/350, and Lincoln Navigator and Mark LT, with the 3.5L EcoBoost, 3.7L V6, 5.0L and 6.2L V8. It does not fit the 6R60 or the 6R140. Ford built many running changes into the 6R80, so read the identification tag on the side of the case before ordering and confirm it says 6R80. If you are unsure, send us your year and VIN and we will check it. Every other part we stock for this unit is on the 6R80 parts page.
Drain and drop the pan, remove the old filter and lower the valve body (T40 Torx bolts). Unclip the lead frame from each solenoid and from the case connector, then fit the new frame and press every solenoid terminal fully home; a half-seated terminal brings the same codes right back. Push the old connector out of the case, lube the new FKM seal with clean fluid, seat the new connector, then install the new filter. Sonnax's 6R80 instruction booklet lists 8 Nm (71 in-lb) for valve body bolts and 14 Nm (10 ft-lb) for a metal pan. Refill with Mercon LV and set the level hot.
Ford's TSB note that the shift solenoids do not need replacing for a lead frame repair holds here too, so you keep the original solenoid body calibration. If your truck's solenoids are also tired, the 7-piece 6R80 solenoid set is the matching part, but read the band numbers before you mix new and old. Clear codes, reset adaptive tables and run the transmission drive cycle so the computer relearns clutch fill. If you only need the frame and connector and already have a filter, the conductor plate with connector and seal is the smaller kit.
| Transmission | |
| Replaces | |
| Connector | |
| Connector seal | |
| Filter | |
| Does not fit |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Both include the lead frame, the case pass-through connector and the connector bore seal. This kit adds an FT-188 / BL3Z-7A098-A filter with gasket, so you do not need to order a filter separately for the pan drop.
That is the exact complaint Ford tied to the molded lead frame in TSB 13-6-8, usually with the wrench light, a zero speedometer and P0720 or P0722. If those match your truck and the fluid is healthy, the lead frame is the part to replace.
Not for a lead frame repair. Ford states solenoid replacement is not required for this procedure. Replace solenoids only if testing shows a solenoid fault, and match band numbers if you do.
Mercon LV. Set the level with the transmission at operating temperature using the check plug or dipstick procedure for your vehicle.
No. This kit is for the 6R80 only. Check the tag on the transmission case, or send us your year and VIN to confirm.
