Belt routing 2004 chevrolet trailblazer - 2004 Chevrolet TrailBlazer

no- no recall on the fuel tank that cracks at the filler neck the following link are complaints about fuel tank that are recieved if you go to home page and enter trailblazer they give you the break down of the whole series of model and complaints as well as recall information they also list the TSB technical service bulletins
2004 Chevrolet Trailblazer Crack In Fuel Tank

Look for the drive belt routing diagram on the engine compartment of your Trailblazer.

Rotate the breaker bar clockwise to release the belt tensio

Slip the belt off the alternator pulley.

Release the belt tensioner arm slowly to avoid damage to the mechanism.

Remove the alternator from the vehicle.

Set the alternator in place and attach the battery cable to the alternator using the ratchet and socket if you have the 4.2L engine model.

http://www.xcardiag.com/

There is a belt routing diagram on the plastic radiator shroud, or go with this.

recheck how you are routing the belt and how much tension you are putting on it. sounds like way to much tension on the drive pulley and that's wearing out the bearing. perhaps post the engine size that you have an i will locate the diagram for the belt routing.

robert

What I do to check the belt is to look at the belt and see if it has cracks on the inside. The small ribs or grooves in the belt will have small cracks when the belt needs replaced.

YOU ARE WORKING IN A TIGHT SPOT.YOU WILL NEED THE DRIVE BELT REMOVAL TOOL.YOU CAN BUY TOOL AT ANY AUTO PARTS STORE.

Hi, first, keep this diagram around as you will need it to route the serpentine belt when you reinstall it. There may also be a diagram under the hood by the radiator.
Next, follow this link and watch the video that shows you how to replace a serpentine belt...
http://www.wonderhowto.com/how-to/video/how-to-inspect-and-replace-your-car-s-serpentine-belt-267229/
Take care

Note the drive belt routing, usually there is a sticker under the hood with the routing. using the right socket and a breaker bar, rotate the drive belt tensioner clockwise to relieve tension. remove belt and slowly release breaker bar tesnsion. for V8, Install on all pulleys except generator, loosen tension and install on generator. for 4.2L install belt over all pulleys except tensioner, relieve tension and install over tensioner, slowly release breaker bar tension.

this should help you, please leave a good feedback thankyou and good luck.

not familiar with trailblazer but looking at the belt, the idler pulley will be all by itself, not driving anything. it just guide the belt. why do you want to know.