Most of them move some but if your belt is squeeling you probably need to replace the tensioner.
Tensioner pulley for the water pump belt on the opposite side of the motor the other side, not the side with the surpentine belt.
look at your belt with the engine running (keep your fingers out) the pully on a little arm that bounces is your tensioner.
You may know your belt tensioner is bad if you hear unusual noises, such as squeaking or rattling, coming from the engine area, particularly when the engine is running. Additionally, if you notice that the serpentine belt is loose or has excessive play, or if the tensioner itself shows visible wear, such as cracks or damage, it's likely malfunctioning. Warning lights on the dashboard may also indicate an issue with the tensioner. Finally, if the belt slips or comes off while driving, it's a clear sign that the tensioner needs to be replaced.
To remove the serpentine belt on a 2004 Ford Focus, first, locate the belt tensioner, which is usually near the center of the engine. Use a wrench or a socket to turn the tensioner pulley counterclockwise, relieving tension on the belt. While holding the tensioner, slide the belt off the pulleys, and then carefully release the tensioner. Finally, remove the belt completely from the engine compartment.
A few things, engine not running, loose belt, or seized pully on idler/tensioner or other acc.
Yes, a bad belt or tensioner can be related to a rough idle. If it is not tight enough, or worn it is not able to run as smoothly as needed to keep the engine running smooth.
3 MUST haves for an engine running. #1 - Compression #2 - Fuel #3 - Spark check to make sure you have these 3 first.
To tighten the belt tensioner on a 2004 Ford Explorer with a 4.0L engine, first, locate the tensioner pulley on the serpentine belt system. Use a wrench or a ratchet with a socket to turn the tensioner pulley counterclockwise, which will relieve tension on the belt. While holding the tensioner in this position, you can then remove or adjust the serpentine belt as needed. Once the belt is properly positioned, slowly release the tensioner to reapply tension to the belt.
To remove the belt tensioner on a 1994 Oldsmobile Delta 88, first, ensure the engine is off and cool. Use a wrench or socket to rotate the tensioner pulley counterclockwise to relieve tension on the serpentine belt, then slide the belt off the tensioner. Remove the mounting bolts securing the tensioner to the engine and take the tensioner off. Finally, replace it with a new tensioner, reattach the mounting bolts, and reinstall the serpentine belt.
The whining could be related to the alternator. Does the car have any electrical problems such as the battery drains and dies while car running, are your belt(s) tight? in good condition? It might be a belt tensioner or idler pulley that is causing the whining.
2001 Toyota corrollas have a tsb on the acc. drive belt tensioners. the hydraulic tensioner leaks and causes the belt to loosen and wear prematurely. Replace both the tensioner and belt to solve the problem.
Remove surpentine belt,then take out bolt that goes through tensioner to engine.