The transmission pump function and repair work

Our Stuart shop mechanics are experts in transmission pump repair.

The transmission pump is the heart of your transmission, pumping hydraulic transmission fluid throughout the system. Its referred as the gear pump and has two gears. One gear is powered by the torque convertor hub which engages the inside gear of the pump. When we repair or install the torque convertor or the pump at Stuart Transmission Repair Shop we are careful to perfectly line up the torque convertor with this inside gear so it is connected properly.

The other gear in the pump is the outside gear which is driven by the inside gear. When these two gears run and rotate together they create a suction effect that keeps the transmission fluid moving. As the pressure increases the hydraulic system becomes effective. This produces pressure to push the transmission fluid and set in motion the valves inside the valve body and also the clutch and clutch bands as well as lubricate all of the parts inside and sends the fluids to the transmission cooler.

When you have a pump going bad you will usually hear a whirring noise coming from the transmission. Bring the automobile in for a transmission diagnostics test and we will test the pressure with the vehicle running to see if there is a problem with the pump.