How do you replace a serpentine belt on a 2003 supercharged Toyota tundra.The tensioner pulley only moves an 18th of an inch?

Answer 1

First off, if you haven't purchased a replacement belt yet, I recommend the goodyear gatorback, available at autozone--it's a premium belt that should well outlast the factory version. After opening the hood and peering inside, the passenger-side of the vehicle should be on your left (unless you're in the UK or another RH drive country) and the driver-side on your right. Look down and you'll see the serpentine belt looping around a series of pulleys. Counting from the left to the right, locate the second pully, which is the tundra's auto-tensioning/idle pulley. There should be a nut that looks like it's protruding a bit more than the nuts on the other pulleys. Using a ratchet or wrench (I think it's a 14mm socket size), turn this nut (which will also turn the tension pulley) counterclockwise/anticlockwise/to the left--it will turn fairly easily and when it does you will see the belt relax. Note how it's threaded before you take it off, although there should be a diagram on the new belt's packaging to help you out. After you take the old belt off, simply thread the new one on in the same manner--it's a lot easier if you have someone maintain pressure on the wrench while you use both hands to thread the belt. If you're alone, you can always tie or bungee your wrench to keep pressure on it. Also, I found it helps to save the highest (and most accessible) pulley for last. After you have the new belt threaded, relax the pressure on your wrench, make sure the belt is seated properly, and you're done!