To apply tension
I don't believe there is an idler pulley on that model, just a tensioner pulley
Are you talking about the "idler pulley"? They are quite simple to change. Loosen the serpentine belt by using a socket on the center of the tensioner pulley, slide the belt off the idler pulley, use a socket to pull the center bolt of the idler pulley and replace the pulley with a new one.
The idler pulley has nothing to do with the brakes. If the idler pulley is bad it could throw or break a belt, and then your engine will stop.
In an Inline 6 Jeep engine, the idler pulley is located to the right of the A/C pulley. It is a smooth pulley, not a grooved one.
If you are referring to the Serpentine belt, you loosen no pulley. You simply remove tension from the belt. The tension is applied by the Idler Pulley. Pry the idler back and remove the belt.If you are referring to the Serpentine belt, you loosen no pulley. You simply remove tension from the belt. The tension is applied by the Idler Pulley. Pry the idler back and remove the belt.
Remove the belt, then remove the bolt holding in the idler pulley.
The idler pulley is between the alternator and the A/C compressor.
To replace the idler pulley on a Toyota Sequoia 4.7, first, disconnect the negative battery terminal. Use a socket wrench to relieve tension on the serpentine belt tensioner, then remove the serpentine belt from the idler pulley. Next, unbolt the idler pulley using the appropriate socket, replace it with the new pulley, and reassemble by reversing the steps. Finally, reattach the serpentine belt and reconnect the battery terminal.
Remove the old, damaged idler pulley and replace it with a new one.
Replace the tensioner assembly as one piece.
To adjust the idler pulley on a Dodge Ram 1500, first, locate the idler pulley in the engine bay. Use a wrench or ratchet to relieve tension on the serpentine belt by turning the tensioner pulley counterclockwise. Once the belt is loose, you can either replace the idler pulley if it's worn or adjust its position if applicable. After making adjustments or replacements, ensure the belt is properly reinstalled and tensioned before starting the engine.
== == it is a free pulley that works as a tensioner on any belt bolted to hold or spring loaded An idler pulley usually tensions a belt.. eg supercharger belt is kept taut by its respective idler pulley