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Signs of bad tensioner - DeVille Cadillac Cars & Trucks

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Noise or belt comes off or frays on edges..

Posted on Oct 26, 2012

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Posted on Jan 02, 2017

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2 Answers

How loose can the valve timing chains be and still run?


There is a tensioner and being loose is not as bad as wear, you might notice some backfire noise when the wear gets excessive.

Mar 24, 2015 | Cars & Trucks

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Sign of bad tension pully


that's probably a worn pully bearing or if you hear it more at idle in drive then it is the heat shield on the cadilitic converter

Apr 01, 2013 | 2000 Lincoln Navigator

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My ls is running very rough when at stop signs and red lights and cutting off


If you are throwing a code for random misfires then your tensioners for your timing chain are going bad. You might have even jumped a tooth on your timing. Need to replace timing chain and tensioners.

Dec 20, 2012 | 2000 Lincoln LS

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Noise on belt tensioner or idler pulley


Carefully check the condition of the belt, the tensioner, and the idler pulley. I had the same thing happen and once I knew where to look, I could see that my idler pulley bearings were bad (understatement...they were GONE!)

Your idler pulley and tensioner need to look even and straight and not leaning in or out. A sure sign of a problem is if one or the other leans in toward where the tension from the belt would be on it.

The best way to check is to buy, rent, or borrow a serpentine belt wrench to take the pressure off and then try and wiggle the tension and idler pulley. If you feel any play, replace as soon as possible. I dragged my feet and ten days after I heard the noise, my idler pulley flew apart right as I pulled into work.

Feb 19, 2011 | 2003 Toyota RAV4

1 Answer

My 1998 vw jetta clutch is having a problem. there was no signs of clutch slipping. clutch pedal went to floor, now there is no going and no sign of a broken cable.


You might need a new clutch attachment kit... there is a clip that usually goes bad and causes the cable to float.(No tension)

Feb 12, 2011 | 1998 Volkswagen Jetta

2 Answers

The AC system is making an purge noise not sure if when the compressor kicks on the belt slips or what because it only does it while driving not at idle. In the cab windows up sounds like purge widows down...


If it is a purge noise the highside pressure may be getting to high and relieving pressure.Usually this can occur if there is too much freon or a restriction in the ac system.The defroster utilzes the ac as well which is why you can hear this. From your description it sounds as if the compressor clutch bearing is going bad.

Jul 05, 2010 | 1999 GMC Sierra

1 Answer

Have a 92 pathfinder the belt squeel which then causes a lack of power why is that the case?


HI, There are only two reasons for this issue. The most common will be a worn, or damaged drive belt. This will cause slippage, in return, decreasing the normal power output of your vehicle. The second issue will be improper tension within the belts structure. You can adjust the tension by unscrewing the pivot and mounting bolts on the alternator. Using a wooden hammer handle or broomstick (or even your hand if you're strong enough), move the alternator one way or the other until the tension is within acceptable limits.

Inspect the belts for signs of glazing or cracking. A glazed belt will be perfectly smooth from slippage, while a good belt will have a slight texture of fabric visible. Cracks will generally start at the inner edge of the belt and run outward. Replace the belt at the first sign of cracking or if the glazing is severe. By placing your thumb midway between the two pulleys, it should be possible to depress the belt 1 / 4 - 1 / 2 in. (6-13mm). If any of the belts, or belt can be depressed more than this, or cannot be depressed this much, adjust the tension. Inadequate tension will result in slippage or wear, while excessive tension will damage pulley bearings and cause belts to fray and crack.

NOTE_ Check the condition of the drive belts, and check the belt tension at least every 30,000 miles (48,000 km) or every 24 months. If tension is not an issue, and the belts show signs of ware, they should be replaced. Tension on the power steering pump belt is adjusted by means of an idler pulley.(on most models)


Nov 06, 2009 | 1992 Nissan Pathfinder

1 Answer

Ford Explorer squealing / screeching


Most likely cause is a bad automatic belt tensioner. See this post on how to check a belt tensioner

http://ricksfreeautorepairadvice.com/diagnose-a-belt-tensioner/

Then see this post on how to diagnose belt noise

http://ricksfreeautorepairadvice.com/diagnose-belt-noise/

Jun 28, 2017 | 2004 Ford Explorer

1 Answer

How can one tell if a tensioner is bad on a 1998 dodge ram 1500? Also is there a such thing as tightening a belt with these tensioners


The tensioner is a spring loaded unit that is supposed to provide the proper tension on the belt with out adjustments. Ususally if a tensioner goes bad it is not providing presure on the serpentine belt (loose belt, squeel, or squeek) or it has a bad bearing in the tensioner pulley (noisy, siezed). The tensioners are sold as an assembly in either case. If the tensioner went bad it is a good idea to replace the serpentine belt at the same time.

Jun 09, 2009 | 1998 Dodge Ram 1500 4WD

1 Answer

I have a periodic squeeling noise comming from under the hood and i've noticed that the fan /pully system jumps or bucks on occasion - is that a sign that my water pump is going?


No, a sign your water pump is going would be your water pump springing a leak through the weep hole, or your engine start to run hot, fast (but that can also be caused by a thermostat, a bad sensor, or blown head-gasket).

Likely-hood is your belt simply need to be replaced, take off the accessory belt and bend it backwards, if you see deep cracks or threads the belt is bad, if you don't then it could be your tensioner pulley going out.

Aug 05, 2008 | 2000 GMC Jimmy

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