How to Remove the Alternator From a 2003 Tundra

The alternator on a 2003 Toyota Tundra creates electricity from the turning of the engine. When the alternator goes out the electrical system of the truck does as well, making the truck unable to drive. The only way to fix the problem is to remove the alternator and either get it rebuilt or replace it with a new one. From start to finish, replacing an alternator on a Tundra should take under an hour to do, but first, you have to remove the defective alternator.

Things You'll Need

• Open-end wrench set
• 3/8-inch ratchet and socket set

Instructions

1. Pop the hood. Unbolt the negative connection to the battery with a wrench. Then unbolt the positive connection on the battery.

2. Locate the alternator on the lower driver's side of the engine. Unbolt the electrical connections on the top of the alternator both by hand and using a 3/8-inch ratchet and socket.

3. Remove the lock nut on the alternator adjusting bolt, located at the bottom of the alternator, using an open-end wrench. Then loosen the adjusting bolt using a 3/8-inch ratchet and socket until the belt on the alternator goes slack.

4. Pull the alternator belt off of the alternator pulley. Unbolt the alternator from the engine using the 3/8-inch ratchet and socket and an open-end wrench. Pull the alternator up and out of the engine compartment.

References

• Autozone: Alternator