![]() So what you have is less pressure available because of the bypass and a reduced pressure on the bands due to fluid pressure building up on both sides of the piston. Also, the transmission bypasses some of the fluid and therefore pressure into the area where the bands are located. When the transmission is trying to pump fluid between the cover and the piston, it also pumps fluid on the opposite side of the piston through the increased clearances, so those forces are fighting themselves. Not only that the OEM machining has sharp edges that scrape away at the bore. Hola Noriel, en el caso de Ford Explorer. ![]() Example of a transmission pressure control solenoid: What is the severity of this DTC The severity of this code normally starts as moderate, but it can progress to a more severe level rapidly when not corrected in a timely manner. Si es un sensor en donde esta localizado. The code P0775 is set by the PCM when the Pressure Control Solenoid 'B' is experiencing a general malfunction. En una explorer 2002 me dio el código p0775 y no se lo que es. This gives you a situation of a very hard metal, rubbing against softer aluminum, so the aluminum wears. La configuración del código P0775 señala que el PCM descubrió un mal funcionamiento del Solenoide Control de Presión B. The shafts for the servos are hardened (very hard!) steel going through a machined aluminum bore in the transmission case (brilliant design!). The pistons have seals that allow pressure to build up between the sealed servo cover and the piston. There is a port in the transmission bore for each that feeds fluid into a cross bore in the servo shaft and up through a counter bore in the shaft to the back side of the piston of each. ![]() Results of our survey confirm there are still going to be issues that are misdiagnosed. It is up to you to diagnose your vehicle and if you come to the conclusion you have worn bores, our kit will fix the problem if installed correctly referencing our directions. There may be other issues within the drive train that can cause similar or some of the same symptoms. Be careful if you do, and refill with fresh fluid. If you can lift up the vehicle you can change it yourself in 2-3hours. Im not sure if you can buy them anywhere else. I believe it will run close to 300, but it depends on the dealership. I believe they come in whats known as a block only. Please Note: The symptoms described above are only that, common symptoms. To fix the solenoid you have to replace it.
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