Replacement 4R70W/4R75W valve body with pan filter and gasket for 2005-2008 F-150, Expedition, Navigator and 2006-2010 Explorer and Mountaineer.
If your 2005-2008 F-150 or Expedition with the 4R70W or 4R75W four-speed is banging into second, flaring on the 2-3, slipping out of overdrive once it is hot, or shuddering on the converter clutch even after a fluid change, a worn valve body is the usual culprit. This listing is a complete replacement valve body supplied with a new pan filter and pan gasket, so one box covers the hydraulic repair and the sealing parts you need to close the pan back up.
The valve body bolts to the bottom of the case under the pan and does all of the hydraulic decision-making. Pump pressure enters through the pressure regulator valve, which sets line pressure based on the signal from the EPC solenoid, then spool valves in machined bores route that oil to the forward, direct, reverse and intermediate circuits and the two bands. The shift solenoids and TCC solenoid that the PCM fires sit in a pack on the valve body, so electrical commands and hydraulic results meet right here. By the 2005 model year Ford was calling these units 4R70E/4R75E, but the valve body layout is the same family that Sonnax documents for the 4R70W, 4R75W and AODE.
Rule out the cheap things first: fluid level and condition, a clogged filter, and the solenoid pack itself, since a failed EPC or shift solenoid can look exactly like a worn bore. Line pressure that falls away as the unit heats up is the classic sign of a worn pressure regulator bore. Our 4R70W valve body problems and testing guide walks through the pressure checks, and the Expedition shift problems guide covers the truck-specific complaints. If the old unit is already out, a bench vacuum test tells you which bores have worn.
The listing covers the 2005-2008 F-150 and Expedition and also names the Explorer, Mountaineer, Mark LT and Navigator. Be careful on those: in these years several of those vehicles were built with other Ford five- and six-speed transmissions, and only trucks with a 4R70W/4R75W (4R70E/4R75E) tag take this part. Check the transmission code on the door sticker or the ID tag on the case, and match the solenoid connector and casting to your old unit. Earlier 1990s valve bodies with the wired harness do not interchange. If you are unsure, send us the year and VIN before you order, or browse every option on our 4R70W parts page.
Because 2001 and later cases dropped the factory stiffener plate under the 2-3 accumulator, many rebuilders add the Sonnax 76507F-01K retainer plate kit when the valve body is out. If the old fluid was burnt or the overdrive band was slipping, the problem is past the valve body, and a Kevlar overdrive and reverse band set or a full rebuild kit is the next step.
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Only if the truck has a 4R70W/4R75W (badged 4R70E/4R75E in these years). Many 2007 and later Expeditions use a six-speed instead. Check the transmission code on the door sticker or the case ID tag, or send us your VIN.
The listing includes the valve body assembly, a pan filter and a pan gasket. Compare your old unit before you order and plan to transfer or replace the solenoid pack as needed; if you want solenoids installed, see the 4R75W valve body with solenoids for 2004-2010.
Mercon V automatic transmission fluid, the Ford specification for this transmission family.
Yes. Clear the codes and drive the truck through every gear at light and moderate throttle so the PCM adapts shift pressure to the new valve body.
It can if the slip comes from low line pressure, such as a worn pressure regulator bore. If the fluid is burnt and the overdrive band is worn, a valve body alone will not fix it.
