How To Change Automatic Transmission Fluid: A Step-By-Step Guide
Last Updated on January 30, 2023 by Admin
The automatic transmission in your car is a system of gears that allow the vehicle to go from stop to start without human intervention. The transmission needs regular maintenance to keep it running smoothly, and one of the most common tasks is changing the automatic transmission fluid. This guide provides a step-by-step guide on how to change your transmission with the help of an automatic transmission specialist, including information on what type of fluid to use and when to change it.
What is Automatic Transmission Fluid?
Automatic transmission fluid (ATF) is a hydraulic oil used in automatic transmissions. The purpose of ATF is to provide a slippery surface so that the automatic transmission can shift gears accurately. Over time, the ATF will degrade and can even become contaminated with dirt, oil, and metal shavings. When this happens, the transmission will not shift properly and may even fail.
There are three types of ATF: synthetic, semi-synthetic, and mineral. Synthetic ATF is made from chemicals such as polyalphaolefins (PAOs). Semi-synthetic ATF is made from partially synthetic oils such as aliphatic hydrocarbons and PAOs. Mineral ATF is made from crude oil or natural gas.
To change your automatic transmission’s fluid, you will need: a pan or container that can hold at least 3 qt (3 L); an automotive jack; a wrench; brake fluid; floor mats; some towels or rags; engine oil; and a quart (liter) of new automatic transmission fluid.
Inspect your vehicle for any signs of leakage. If there are no signs of leakage, start your vehicle and let it idle for about 5 minutes to warm up the system. Pour about 1/4 cup (60 ml) of engine oil into the pan or container. Place the pan on top of the engine so that the torque converter is in line with the drain plug opening on the bottom of the pan. Turn your car ‘s key to the “on” position and wait about 20 seconds. Remove the pan and use the wrench to unscrew the drain plug. Allow the fluid to drain into the pan. Replace the drain plug and screw it in snugly. Reattach the pan to the engine, turn your car’s key to the “off” position, and remove the pan. Pour about 1/4 cup (60 ml) of new automatic transmission fluid into the pan. Place the pan on top of the engine so that the torque converter is in line with the drain plug opening on the bottom of the pan. Turn your car’s key to the “on” position and wait about 20 seconds. Replace the pan and screw it in snugly. Reattach your vehicle’s parking brake and drive it until it reaches operating temperature. Fill up your vehicle with gasoline and start it up. Watch for any signs of trouble, such as a prolonged delay in starting or difficulty shifting gears. If there are no signs of trouble, replace your transmission fluid every 7,500 miles (12,000 km).
How Does Automatic Transmission Work?
Automatic transmissions have been around for over fifty years and are still one of the most popular options for vehicle ownership. The transmission is a gearbox that allows a car to move forwards or backwards, depending on which gear it is in.
The automatic transmission uses oil to shift gears and this process can be broken down into three parts: pre-shift, during-shift, and post-shift. Before the actual gear change happens, the transmission needs to know what gear the car is in. This information comes from a sensor on the axle that connects to the engine.
During the shift, oil pressure acts as a fluid coupling between the transmission and differential. This keeps them moving together until they reach their final destination. When you come to a stop, the clutch engages and separates these two parts.
Post-shift involves filling up your automatic transmission with new fluid. The system will guide you through this process based on your vehicle’s specifications. Make sure you check these details before starting your journey!
How to Change Automatic Transmission Fluid
What is automatic transmission fluid and what does it do?
Automatic transmission fluid is a slippery, thick liquid that helps the transmission shift gears. The fluid circulates through the transmission, absorbing heat from the gears and helping to keep them lubricated. Over time, the fluid can become contaminated with dirt, dust, and other debris. When this happens, your automatic transmission may not shift properly or at all. How do you know when it’s time to change your automatic transmission fluid? The manufacturer generally recommends replacement every 7 years or 100,000 miles. How to change automatic transmission fluid:
1) Park the car in a level spot so you can work on it safely.
2) Remove any obstacles in the way of the engine and transmission.
3) Open the hood of your car.
4) Locate the Automatic Transmission Fluid (ATF) reservoir. It’s usually located behind or below the engine bay on most cars.
5) Pour out half of the current ATF into a container.
6) Shut off the engine and remove both front wheel hubs if necessary to make room for the tool tray under the car.
7) Slide out the tool tray and locate the Automatic Transmission Fluid pump (or use a funnel).
8 ) Pump new ATF into the reservoir until it’s full. Make sure to replace any used ATF with fresh oil!
9 ) Replace everything back in place and shut off the engine.
10 ) Test drive your car to make sure it shifts properly.
What are the Symptoms of an Automatic Transmission Problem?
If you’re experiencing any of the following symptoms, it may be time to change your automatic transmission fluid:
- Slipping and grinding when in gear
- Low power and poor acceleration
- A clunking or “ratcheting” noise when driving
- A transmission that seems to “grab” during shifts
What to Do if You Suspect an Automatic Transmission Issue
If you suspect that your automatic transmission is in need of a fluid change, there are a few things you can do to check for the issue. First, take a look at the fluid level and make sure it’s within the manufacturer’s guidelines. Second, use a transmission fluid analysis tool to test the engine oil and transmission fluid for contaminants. If either of these tests come back positive for an issue, then it’s time to get your car serviced.
Conclusion
If your automatic transmission is starting to slip and you’re not sure why, changing the fluid could be the solution. In this guide, we’ll walk you through the entire process of changing your transmission fluid, from finding the right product for your car to filling and topping off your bottle. By following these simple steps, you’ll be on your way to a smooth drive!
