1. Prepare your tools and safety equipment. You will need a set of wrenches, a ratchet with a socket, and safety glasses. Make sure you have a firm and level surface to work on.
2. Locate the tensioner. The tensioner on the Toyota Tundra 4.7 V8 engine is located on the front of the engine, near the serpentine belt. It is usually attached to the engine block and has a pulley attached to it.
3. Loosen the tensioner bolt. Use the ratchet with a socket to loosen the bolt that holds the tensioner in place. Do not remove the bolt completely at this stage.
4. Push the tensioner down. Once the tensioner bolt is loose, use the wrench to push the tensioner down. This will release the tension on the serpentine belt.
5. Remove the serpentine belt. Now you can remove the serpentine belt by simply slipping it off the pulleys.
6. Remove the tensioner. Once the serpentine belt is removed, you can now remove the tensioner by unscrewing the bolt that was loosened earlier.
7. Install the new tensioner. If you are replacing the old tensioner, insert the new one in the same position as the old one and tighten the mounting bolt.
8. Reinstall the serpentine belt. Put the new (or old) serpentine belt back onto the pulleys and make sure it is seated correctly.
9. Tighten the tensioner bolt. Use the ratchet and socket to tighten the tensioner bolt until it is snug, but not too tight.
10. Double-check everything. Ensure the tensioner is properly seated and the belt is properly tensioned. Make sure all tools are removed before starting the engine.
By following these steps, you can safely remove the tensioner on a Toyota Tundra 4.7 V8 engine.
