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What Is A Transmission Flush?

The transmission flush originated over 20 years ago, with a machine that could replace all of the automatic transmission’s fluid without any worker necessary. At the time, this was a huge technological renovation, with the machine offering cost-saving due to no mechanics being needed. Since this was a cost and labor-saving endeavor to buy the machine, many auto repair shops bought these machines for their individual shops.


The transmission flushing process is pretty simple and by the book. You have to fill the right amount of transmission fluid and then hook up the transmission lines. After this, you just let it run. The old fluid and the smudge will be removed, while the new fluid replaces it. If the lines are very dirty, a solvent can be added through the transmission to clean out the parts.


What Are The Benefits of A Transmission Flush?


If your car has a significant amount of miles on it, then it is definitely time for a transmission flush. Being an important part of car maintenance, this is an imperative task that needs to be taken on your vehicle to ensure optimal performance. There are numerous benefits to performing a transmission flush.



  • Freshens Transmission Fluid



Since your transmission fluid can deteriorate over time and gather debris, it can affect how well it works and the efficiency of the fluid. Debris within the fluid can affect your transmission lubrication, causing costly damage to your vehicle. A complete flush has the ability to remove all corroded fluids and debris.



  • Cleans Transmission Components



Even though coolant is required to keep your transmission and engine from freezing due to cold temperatures, the coolant can also be corrosive to the transmission. If you perform a transmission flush, the rust will be fully cleaned out to ensure optimal engine function.



  • Prevents Car Malfunctions



If you don’t change your transmission fluid or flush the system regularly, it can lead to a high amount of wear on your transmission. Over time, this can cause your engine to run at a reduced quality. Eventually, your engine will overheat, leaving you broken down and without a usable vehicle.



  • Improves Transmission Life Span



By performing regular transmission maintenance, you can extend the lifespan and quality of your vehicle. A regular transmission flush should occur every 40,000 miles to eliminate debris and rust, in addition, to prevent excessive wear. 


What Are The Downsides Of A Transmission Flush?


Even though this process is straightforward, flushing has downsides. Flushing costs more than a fluid change, since an expensive machine has to be used. Some shops will mark up the prices even more than usual, since they have already purchased an expensive machine for the process. Be wary when going to these mechanics, since they might automatically suggest a transmission flush for any solution.


Since the flushing process doesn’t need the pan to be removed or the filter to be changed, you and your mechanic won’t be able to see what is in the pan, or the damage and debris in the filter. Also, some mechanics believe that the high pressure caused by these machines damage the seals inside of your transmission.

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