For a Transmission Fluid Exchange, referred to as a “Transmission Service”, the pan is drained and the filter is replaced. This is recommended every 2 years or 30,000 miles. It’s an improvement that will help the car run better. Since part of the old contaminated fluid remains in the cooler lines and torque converter, eventually, it will cause the vehicle to overheat and work harder. This will decrease performance and over time, can lead to transmission failure. This is why a Transmission Flush will still need to be performed at recommended intervals.
A Transmission Flush is the “full meal deal” and will include removing the dirty fluid from the pan, cooler lines, and torque converter, removing contaminates that have built up over time, replacing the transmission filter, and dropping and inspecting the pan for issues. This is recommended every 3 years or 45,000 miles. Replacing all of the fluid through a cooler line or pump inlet flush machine will increase the performance and life span of your vehicle. This service is well worth the extra investment. You can always do a Transmission Flush in place of a Fluid Exchange every 2 years or 30,000 miles. It’s up to you.
It’s important to note that a Transmission Flush will not “fix” the problems you are experiencing if your transmission is failing. A transmission that has not been well maintained can fail directly after a flush, so it’s important to ensure that your transmission is being regularly maintained by a reputable automotive repair shop. If you have any questions, bring it in for a diagnostic. The diagnostic is free if repairs are done at our shop!