You might think to yourself that no one has really reminded you that the transmission fluid in your car needs changing anytime soon. However, with the design of an automatic transmission, the fluid itself doesn’t need to be changed too often in normal circumstances. Therefore, from the operation of a gearbox, it can be observed that the condition of a transmission fluid must be optimal for shifts to be carried out smoothly. With this, different gear sets can be engaged to shift into different gears. A mechanically driven transmission oil pump keeps the oil constantly pressurized.īy changing how the solenoids are activated, the flow of the fluid within the valve body alters to pressurize different sets of clutch packs. The transmission control unit controls the flow of the transmission fluid using the valve body and the transmission solenoids. The purpose of the transmission fluid is simple, it’s used as a medium to transfer hydraulic pressure from one end to another. Without transmission fluid, or if there’s too much of it, your transmission won’t be able to function normally. Imagine it as the blood flowing through our bodies. However, before that, there is something that many workshops will recommend you to carry out first – replacing your transmission fluid.Īrguably, within an automatic transmission, the single most important thing is the transmission fluid. Therefore, it is important that you recognize the signs of a transmission-related issue and consult a workshop when possible. Nowadays though, automatic transmissions are built up of countless intricate electrical parts, something going wrong can end up with you left stranded. Everything was purely mechanical so there wasn’t much that can go wrong. Maybe your automatic transmission would develop slight jerks upon shifting, but nothing especially concerning. These transmissions would last thousands of miles mostly trouble-free. Even automatic transmissions back then were mostly brake-band units that were durable, to say the least. That said, transmission-related problems weren’t always such a major point of consideration for car buyers.īack a few decades when manual transmissions were prevalent, they were the go-to choice for many as the choice for work vehicles. Before that happens, it’s worth looking into how much does a transmission fluid change cost.Īlong with the increasingly complex architecture of modern transmissions, transmission reliability is now a top concern for many new car owners. It takes a long time for an engine demonstrating signs of problems to fail catastrophically, but it doesn’t take long for a seemingly minor shift issue to completely cripple a car and leave you stranded. Transmission issues are one of the many things that a car owner dreads.
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