1. Gather the necessary materials and tools, including a new transmission fluid filter, transmission fluid, a funnel, a drain pan, and a set of wrenches.
2. Prepare your vehicle by parking it on a level surface and turning off the engine. Engage the parking brake to prevent the vehicle from rolling.
3. Locate the transmission fluid drain plug, which is usually found on the bottom of the transmission pan. Place the drain pan underneath the drain plug.
4. Use the appropriate wrench to loosen and remove the drain plug. Allow the transmission fluid to drain completely into the drain pan.
5. Once all the fluid has drained, replace the drain plug and tighten it securely.
6. Locate the transmission fluid filter, which is usually found near the transmission fluid drain plug. It may be necessary to remove some bolts or brackets to access the filter.
7. Use the appropriate wrench to loosen and remove the bolts that hold the transmission fluid filter in place. Carefully remove the filter and discard it.
8. Clean the filter housing and the surrounding area with a clean rag to remove any debris.
9. Insert the new transmission fluid filter into the housing, ensuring that it is properly seated and aligned.
10. Reinstall the bolts that hold the filter in place and tighten them securely.
11. Add the new transmission fluid to the transmission through the fill plug. Use the funnel to avoid spills.
12. Check the fluid level using the transmission fluid dipstick. The fluid level should be within the "Full" and "Add" marks on the dipstick.
13. Start the engine and let it run for a few minutes to circulate the new transmission fluid.
14. Recheck the transmission fluid level and adjust it if necessary.
15. Test drive the vehicle to ensure that the transmission is shifting smoothly and properly.
Remember, regular maintenance of the transmission fluid and filter is important for the proper functioning and longevity of the automatic transmission in your Toyota Tundra. If you are not comfortable performing this task yourself, it is recommended to have it done by a qualified mechanic.
