To simply replace ATF, a mechanic will remove a drain plug from the bottom of the transmission and allow the old fluid to run out. A transmission flush, on the other hand, is the process of connecting a special transmission flush machine to your vehicle’s transmission cooling lines. The machine circulates fresh ATF throughout the transmission while, at the same time, it removes all of the old fluid. Some machines will also add a cleaning solution to help remove harmful residue inside the transmission.
A transmission flush does not customarily involve replacing the transmission filter or removing the transmission pan unless specifically requested by the customer. Once all of the old ATF has been removed and the new fluid installed, the process is complete. Technician will disconnect the machine, check the fluid level, and test drive your vehicle.
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