To relieve serpentine belt tension you need to use a Rachet arm or Breaker bar, the longer the better. (Many parts stores, such as Auto Zone will let you use their special tool made just for this purpose.) Fit the 3/8 square drive tip into a hole in the bracket which is attached to the Tension pulley. Once you insert the drive tip into the matching hole, simply turn the ratchet or breaker bar until the pulley rotates and releases the tension.
Serpentine puller
put a wrench on the tensioner pully and pull it to release tension on the belt
I used a breaker bar for the tension pulley to relieve the tension to remove the belt, I think there are three bolts that hold the tension pulley on, just remove them and reverse the procedure to install. Follow the diagram that is either on the inside of the hood or on the radiator cover on how to thread the belt back on the pulleys.
Disconnect the battery.remove the serpentine belt.Unbolt the pulley.
Disconnect the battery.Remover the serpentine belt.Unbolt the belt tensioner from the bracket.
You need a 1/2" ratchet or a Johnson bar. The idler pulley has a square 1/2" hole that the square on the ratchet will fit in and allow you to turn the pulley and relieve the tension.
one of the pullies that doesn't drive anything will have a bolt head in the center, turn this counterclockwise, and as you do so, the tesion will be removed. as soon as you let tension of the socket however, the tension will be re-instated.
Using a 15mm wrench, turn the bolt in the center of the idler pulley clockwise to relieve tension and remove the belt.
Relieve the tension by putting a wrench on the tensioner and then remove the belt. www.trailvoy.com all the answers for your Trailblazer from true enthusiasts!
The tension on a serpentine belt is automatically set by the Idler Tension Pulley. If you find it is not correctly setting the tension, the the spring may be broken.
how do i find the auto tension release for the serpentine belt on a 2004solara
The zd30 has a hydraulic tensioner using an idler pulley to automatically tension the serpentine belt.