5R110W TRANSMISSION WONT SHIFT OUT OF 1ST FULL
The TCC Control Valve section can have problems due to wear, as well as due to mistakes made when rebuilding the TCC Control Valve Assembly ( below). A worn TCC Control Valve circuit will cause lockup slipping, cycling, as well as lockup related codes 7. All components in this circuit should be replaced as a full assembly. However, there are three different versions of this valve. The 2003-04 models have a valve that has a spool outer diameter of 0.402 inches in diameter and is 3.570 inches long. The 2005 and up valve is almost a quarter inch longer at 3.770 inches long. The early version of this valve is not available new, and cannot be used in 2005 and up pump assemblies. Both the 2005 to 2008, as well as the 2009 and up pump assemblies retrofit to the earliest application. However, do not reuse this early type valve. It will cause torque converter lockup failure. When installing the retaining clip for the correct diameter and length TCC Control Valve, make sure that the sleeve feed hole is visible. If assembled incorrectly, the code P1744 will show up during transmission operation. And nobody likes to drop a unit to fix a problem that can be avoided by getting it right the first time. Much like the 4R100 transmission, the 5R110W has a complex oil pump assembly with multiple valves that control pressure and torque converter function. Any number of converter symptoms can be drilled back down to issues related to valve wear. The final item is the PCM. The 5R110W does not have a traditional valve body, but the PCM is still the brains of the outfit. When this computer module gets dirty or fails, there are long list of symptoms. However, it can also cause overheating which can cause torque converter malfunction. The second is to check on the bypass filter. This filter functions similarly to the traditional aftermarket bypass filter installed after a unit is rebuilt to help collect any leftover metal missed in flushing and installation. This OEM designed filter, however, is to provide an additional superfine filtration process to normal transmission function. For the years 2003 to 2007, the filter is a toilet paper roll type ( above left). From late 2007 to 2010 it is a sealed metal canister that installs directly to the transmission case or to the vehicle underbody ( above right). In 2011, Ford shifted this filtration function to inside the case. Regardless of model year, this filter must be changed to avoid killing your recently rebuilt unit. We are going to review torque converter symptoms and their causes starting with what can first be addressed while the unit is still in the vehicle. Then we will move on to things that must be addressed by removing the unit and tearing it down for corrections. Its primary purpose was to replace the 4 speed 4R100 units. The 5R110W, or TorqShift five speed unit, features a Tow/Haul setting to help improve hauling performance as well as preserve the life of the transmission and improve the safety and drivability of the vehicle. Hunting back and forth for the right gear under load has killed many transmissions, and it is certain death for this unit as well. Throughout the next decade, Ford made significant changes to this much abused unit. Three generations of oil pump assemblies, multiple changes to the planetary systems and drive shells, all of which were in response to durability needs. And along the way, this unit has killed perfectly good torque converters. In 2003, Ford introduced the 5R110W transmission for use in heavy duty applications.
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