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pretty much-the 2 get confused all the time. Technically a tensioner is an assembly with a spring and an idler is a fixed pulley-most newer cars have both.

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11y ago

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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.


Why you use idler pulley?

To apply tension


Can't loosen idler tension pulley on air conditioner idler pulley?

Replace the tensioner assembly as one piece.


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.


Where is the idler pulley located on a car?

Most idler pulley's are near the top and usually quite easy to get to. Press on the belt somewhere, enough to deflect it a couple inches and watch to see which pully is mounted on a tension spring. That is the idler pulley.


Where is the tension adjustment for a 1995 Buick lesabre serpentine belt?

There is no tension adjustment. Tension is automatically adjusted by the idler pulley.


How do you change the serpentine belt idler pulley ona 2006 Isuzu ascender?

Requires two person team. Step One: Look at serpentine belt diagram on front of engine. Arrow points to idler tension pulley. (Front Left side of engine) Loosen this 15mm bolt. Step Two: Loosen Idler pulley bolt - 15mm. Step Three: One person push down on idler tension pulley with tire removal tool or cheater bar on front left of engine while second person lifts belt off alternator. Step Four: Remove Idler pulley and replace with new one. Tighten bolt to idler pulley Step Five: One person push down on idler tension pulley with while the other fits belt on alternator and around idler pulley. Step Six: Make sure belt fits as noted on belt diagram and Tighten bolt on idler tension pulley (front left side of engine). Approximate time: 10 minutes


Where is the tension bolt for the serpentine belt on a 99 alero?

It's on the center of the idler pulley


What is a idler pulley used for on a ford bronco?

The idler pulley on any vehicle is used to maintain the proper tension on the vehicle's belt(s). without it belt maintenance would be difficult.


A pulley on front of motor is loose but i don't know the name of it it's right above the tension pulley?

If it does not drive anything it could be an idler pulley.


Does the idler pulley cause rough idling?

No. The idler pulley only maintains tension on the serpentine belt. A faulty idler pulley can cause noise and a loose tensioner arm can cause belt slipping but other than having a similar name, it has nothing in common with engine idling.


Where does a pulley tension spring go on a 2007 mtd yardman riding mower?

On a 2007 MTD Yardman riding mower, the pulley tension spring is typically attached to the deck engagement lever and the idler pulley. The spring helps maintain tension on the idler pulley to ensure proper belt engagement for the mower blades. To install it, locate the spring attachment points on the lever and idler pulley, ensuring it's securely connected for optimal performance. Always refer to the mower's manual for specific diagrams and instructions.