Transmission fluid is the “Life Blood” of an automatic transmission. It not only provides the hydraulic power to move the parts inside the transmission, but it must also cool, clean, and lubricate the internal transmission parts. Worn out or contaminated fluid allows excess friction, heat, and wear to occur while you drive. Your transmission's vital parts get clogged with sludge and varnish deposits because, just like the oil in the car's engine, automatic transmission fluid (ATF) suffers from heat, friction and electrochemical degradation. In fact, nearly nine out of ten transmission failures are due to overheating and fluid contamination according to the Automatic Transmission Rebuilders Association.
By just dropping the pan and filter you cannot remove all of the ATF. Instead it stays in the torque converter, valve body and transmission cooler lines, making a complete fluid drain impossible.
Typical transmission service removes and replaces only 25%-50% of your car's contaminated ATF. In some cases, adding new fluid to the remaining contaminated fluid can actually cause sludge and varnish deposits to clog filters and further restrict flow. This can result in a serious malfunction or even failure of your automatic transmission.
Now you have an option. A transmission fluid exchange safely removes most, if not all of the old, contaminated fluid, as well as varnish and sludge deposits. It also cleans the transmission cooler, valve body and torque converter by removing worn metals that slowly grind away your transmission's internal components. A transmission fluid exchange thoroughly cleans your car's transmission and protects it with fresh ATF and conditioners that revitalize the seals and O-rings.
If your vehicle's transmission is showing any of the typical signs (discoloration of or contaminated transmission fluid, slipping, rough or hard shifting), try a transmission fluid exchange service. It may help you avoid the cost of major repair work or even prevent the need for a new transmission.