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Belts have to make at least a 180° wrap around engine components. To do that, they sometimes have to place an "idler roller" under the component before they can route the belt to the next component. That idler roller doesn't power anything. It just keeps the belts wrapped properly around the preceding pulley. The roller has a bearing in it and sometimes that bearing wears out.
Rick
I'm a retired ASE Master/L-1 Technician. I still keep current with the latest automotive technology. Visit my blog for cool articles and TSB's: http://free-auto-repair-advice.blogspot.com
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WHAT PULLEY DO I loosen to get single drive belt on?
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.
What are idler pulleys?
== == 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
Is the tensioner pulley the same as the idler pulley on a 1998 Chevy cavalier?
No, the tensioner pulley and the idler pulley are not the same, although they serve similar functions in a vehicle's serpentine belt system. The tensioner pulley is designed to maintain the proper tension on the belt, while the idler pulley guides the belt and helps maintain its path. In a 1998 Chevy Cavalier, the tensioner pulley is adjustable to compensate for belt wear, whereas the idler pulley is typically fixed.
What is a Timing Belt Idler?
It's a pulley that guides the belt
How do you replace idler pulley 2004 Saturn Vue?
To replace the idler pulley on a 2004 Saturn Vue, first, disconnect the battery and relieve tension on the serpentine belt using a wrench on the tensioner pulley. Remove the serpentine belt from the idler pulley, then unbolt the old idler pulley from its mounting bracket. Install the new idler pulley, reattach the serpentine belt, and finally reconnect the battery. Always ensure the belt is properly aligned before starting the engine.
How do you replace the idler pulley on a 1997 dodge caravan?
Remove the belt, then remove the bolt holding in the idler pulley.
How do you change the idler pulley on 1994 Cadillac eldorado?
Take the belt off, un-bolt the idler pulley, bolt the new pulley on, and finally put the belt back on and Viola!!
What is an idler pully?
An idler pulley is a pulley that does not drive and is not connected to any device that is driven. It serves to either tension a belt or to route a belt to clear an obstacle.
1990 Comanche why does the sernetime belt squike?
Belt is worn out, or the idler pulley is defective. Replace the belt and inspect the idler puley.
2007 dodge caliber how do you replace the idler pulley belt?
To replace the idler pulley belt on a 2007 Dodge Caliber, first, ensure the engine is off and cool. Remove the serpentine belt by using a wrench to relieve tension on the tensioner pulley, then slide the belt off the idler pulley. Next, unbolt the idler pulley from its mounting bracket, install the new pulley, and reattach it with the bolts. Finally, route the new serpentine belt back onto the pulleys according to the belt routing diagram and release the tensioner to apply tension to the belt.
Can the idler pulley be the problem on my car because when i brake the car dies?
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.
How do you replace an idler pulley on a 1998 Mercury Villager?
To replace the idler pulley on a 1998 Mercury Villager, first, disconnect the negative battery terminal to ensure safety. Next, remove the serpentine belt by loosening the tensioner pulley with a wrench, then slide the belt off the idler pulley. Unbolt the old idler pulley using a socket wrench, and install the new pulley in its place. Finally, reattach the serpentine belt and reconnect the battery terminal.
