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How Does My Car’s Transmission Work?

August 19, 2022
automotive transmission

Your vehicle’s transmission consists of a network of gears that transfers the engine’s force into the energy needed to spin the wheels. The transmission changes gears and regulates how much power is applied. Automobiles either have manual transmissions or automatic transmissions.


What Is the Difference Between a Manual Transmission and Automatic Transmission?


Manual transmissions require the driver to use the gear shift to switch gears on their own. If a driver wants to drive faster, they must shift into a higher gear. Drivers may also switch into a lower gear for more torque at a lower speed.


Automatic transmission, which is more common in modern cars, serves the same purpose. Manual transmissions and automatic transmissions differ in their execution and operator use. Automatic transmission utilizes technology like processors and sensors to change gears automatically based on how much energy is required for the driver’s speed, incline and road conditions.


What Does Transmission Fluid Do?


Transmission fluid serves multiple purposes, but its primary function is lubricating the gears in the transmission so they do not grind and wear down. Transmission fluid also helps prevent the transmission from overheating. Cars with manual and automatic transmissions need different types of transmission fluids. Automatic transmission fluid is separate from manual transmission fluid because it applies pressure and friction,

which is essential for an automatic transmission’s functionality.


How Often Do I Need to Change My Transmission Fluid?


If your car has a manual transmission, most manufacturers suggest replacing the transmission fluid after driving around 30,000 to 60,000 miles. Vehicles with automatic transmissions can usually run 60,000 to 100,000 miles before needing the transmission fluid replaced.


There are some warning signs to look out for that will indicate it is time to change your transmission fluid.


Transmission Fluid Discoloration


Transmission fluid is usually either light pink or clear. If you check your transmission fluid with a dipstick and it is discolored, has particles or is below the designated line, this indicates that you are due for a fluid change.


Loud Noises


If you begin to hear loud sounds coming from your car, there’s a chance the gears are scraping against each other in your transmission. Many car issues produce loud noises, but unusual sounds while you accelerate are one of the telltale signs of low transmission fluid.


Drives Differently


You may notice a change in how your vehicle accelerates or shifts. This is another indicator that your car may need to have its transmission fluid replaced.


Can I Change My Own Transmission Fluid?


If your transmission fluid is low, it is best to let a certified and experienced mechanic change it. A number of things could go wrong when changing transmission fluid, so unless one knows their way around cars, it is likely in their best interest to leave it to a professional.


Can I Replace My Broken Transmission?


Complete transmission breakdowns generally only occur in older vehicles. While a broken transmission can be replaced, the cost of replacing it often exceeds the vehicle’s value. A replacement might be worth it if the vehicle has sentimental value or it’s a classic/historic vehicle.


Otherwise, it is likely much more cost-effective in the long run to sell the car and put that money toward a down payment on a pre-owned vehicle from Direct Car Buying.


Find a Dealer-Certified Car, Truck or SUV in Washington D.C. or Baltimore


A broken transmission might be one of several problems preventing your vehicle from running. If you are experiencing difficulties with your transmission or your car is exhibiting other problems, it may make more sense to upgrade instead of paying for costly repairs.


Find a newer, more reliable and fuel-efficient vehicle from Direct Car Buying. Browse our inventory of vehicles to discover your next car, truck or SUV from the comfort of your home. Contact us today to get started.

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