How to change transmission fluid of a automatic transmission engine?

1. Park your car on a level surface and engage the parking brake.

2. Locate the transmission fluid dipstick and remove it to check the current fluid level and condition. This will help you determine if the fluid needs to be changed.

3. Locate the transmission fluid drain plug underneath the car. Place a drain pan underneath the plug to catch the old fluid.

4. Remove the drain plug and allow the old fluid to drain completely into the drain pan. This may take a few minutes.

5. Once all the old fluid has drained, replace the drain plug and tighten it securely.

6. Locate the transmission fluid fill plug, which is usually located near the top of the transmission. Remove the fill plug.

7. Use a funnel to pour the new transmission fluid into the transmission through the fill hole. Refer to your owner's manual for the correct type and amount of fluid to use.

8. Once you have filled the transmission with the new fluid, replace the fill plug and tighten it securely.

9. Start the engine and let it run for a few minutes to allow the new fluid to circulate through the transmission.

10. Check the transmission fluid level using the dipstick and add more fluid if necessary.

11. Replace the dipstick and close the hood.

12. Take your car for a test drive to ensure that the transmission is functioning properly with the new fluid.

Materials:

- Replacement transmission fluid (consult your vehicle's manual for the correct type and quantity)
- Transmission fluid filter (if applicable)
- Fluid pump or funnel
- Transmission pan gasket or sealant
- Oil filter wrench (if applicable)
- Drain pan
- Safety glasses
- Gloves
- Clean rags

Safety Precautions:

- Park the vehicle on a level surface and engage the parking brake.
- Allow the transmission to cool down for at least 30 minutes to prevent burns.
- Wear safety glasses and gloves to protect yourself from hot fluid and chemicals.

Steps:

1. Locate the Transmission Pan:

- Look underneath the vehicle and find the transmission pan. It is usually a rectangular or oval-shaped metal pan attached to the bottom of the transmission.

2. Drain the Old Fluid:

- Place the drain pan underneath the transmission pan.
- Locate the drain plug on the transmission pan. It is usually a small hexagonal bolt.
- Carefully loosen the drain plug with a wrench and allow the old fluid to drain into the drain pan.

3. Remove the Transmission Pan:

- Once the fluid has drained, carefully remove the transmission pan bolts using a wrench or socket.
- Gently lift the pan off the transmission, being careful not to spill any remaining fluid.

4. Clean the Transmission Pan and Replace the Filter (if applicable):

- Clean any debris or contamination from the transmission pan using a clean rag.
- If your vehicle has a transmission fluid filter, locate it and remove it. Clean or replace the filter as necessary.

5. Replace the Transmission Pan Gasket:

- Remove the old transmission pan gasket and replace it with a new one. Make sure the gasket is properly aligned and seated.
- If you are using sealant instead of a gasket, apply a thin bead of sealant to the mating surface of the transmission pan.

6. Reinstall the Transmission Pan:

- Carefully lift the transmission pan back into place and align it with the transmission.
- Hand-tighten the pan bolts and then use a wrench or socket to further tighten them to the specified torque (refer to your vehicle's manual).

7. Add New Transmission Fluid:

- Using a fluid pump or funnel, fill the transmission with the correct amount and type of fluid specified in your vehicle's manual.
- Check the fluid level using the transmission dipstick.

8. Start the Engine and Check for Leaks:

- Start the engine and let it idle for a few minutes.
- Shift through all the gears to circulate the new fluid.
- Check for any leaks underneath the vehicle.

9. Recheck the Fluid Level:

- Wait for the transmission to cool down and recheck the fluid level using the dipstick. Adjust the fluid level as necessary.

10. Dispose of Old Fluid and Filter:

- Dispose of the old transmission fluid and filter properly according to local regulations.