How to Change Transmission Fluid in a Car

Changing your transmission fluid is an essential maintenance task that helps ensure your car’s transmission operates smoothly and efficiently. Here’s a step-by-step guide on how to do it yourself⁚

What You’ll Need

• New transmission fluid (check your owner’s manual for the correct type and amount)
• A drain pan
• A wrench or socket that fits the drain plug
• A funnel
• Gloves
• Safety glasses
• A jack and jack stands (optional, but recommended for easier access)

Steps

1. Prepare Your Vehicle

1. Park your car on a level surface and engage the parking brake.
2. Allow the engine to cool down completely.
3. If using jack stands, raise the vehicle and secure it safely.

2. Locate the Drain Plug

1. Locate the transmission pan on the underside of your vehicle. It’s usually near the rear axle.
2. The drain plug is typically a large bolt or hex-head screw on the bottom of the pan;

3. Drain the Old Fluid

1. Place your drain pan directly beneath the drain plug.
2. Carefully loosen the drain plug with your wrench or socket.
3. Allow the fluid to drain completely into the pan.

4. Replace the Drain Plug

1. Once the fluid has stopped draining, tighten the drain plug securely. Do not overtighten.

5. Fill the Transmission with New Fluid

1. Locate the transmission dipstick. It’s usually near the back of the engine.
2. Remove the dipstick and pour the new transmission fluid into the dipstick tube using a funnel.
3. Add fluid until the level reaches the “Full” mark on the dipstick.

6. Check the Fluid Level

1. Start the engine and let it idle for a few minutes.
2. Turn off the engine and check the fluid level again. Top off if necessary.

7. Clean Up

1. Dispose of the old transmission fluid properly.
2. Clean up any spills or drips.

Tips

• It’s a good idea to change your transmission fluid every 50,000 miles or as recommended by your vehicle’s owner’s manual.
• If you’re unsure about any step of this process, it’s best to consult a professional mechanic.

By following these steps, you can successfully change the transmission fluid in your car and keep your transmission running smoothly for years to come.