Question about 2006 Pontiac Grand Prix

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Squealing coming from alternator pulley bearing. any way to replace just the pulley or bearing

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Clean the glaze off the pulley first. If the squeaking is still present replace the bearing. They are sold separately at Berry Bearings nation wide. The Altenators case will have to be opened up to remove the bearing

Posted on May 03, 2010

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1993 Chevy K1500 4x4 5.7L, I have a squeal coming from my Air Pump pulley, at first I figured it was my A/C but after I pulled the belt and freely spun the pulleys it sounds like it is coming from th


Both have bearings. GM products are notorious for having power steering pumps that squeal, even when truck was new (my in-laws '77 Chev 3/4 for example). The basic rule of thumb, if it has a pull, it has bearings. If the bearings can be replaced, then have it done if you can't do it yourself. Some bearings have to be pressed on, not everyone has the needed equipment. Given the age of the truck, I'd have the A/C bearings looked to as well. If either of them seize/freeze your truck won't run because the surpentine belt won't be allowed to turn. This happened when the bearings in my alternator bit the big one and fragged on my '92 Sonoma.

Oct 13, 2014 | Cars & Trucks

1 Answer

Squealing


Bearings often will calm down with noise after they get hot. Just because the idler bearings, belt may be new it could still be a bearing in an alternator, AC, power steering, ect.

Apr 04, 2014 | 1991 Plymouth Sundance

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Recently replaced Serpintine belt. Truck squeals


If your truck has a fan clutch check to see if it is good.

Feb 10, 2014 | 1998 Dodge Dakota

1 Answer

Squealing under hood


could be the alternator or the power steering bearings. more like to be the power steering pump if it is the alternator spray some wd40 on the bearing shaft as the engine is running can do this to the power steering pump but it dont usually get to the bearing. unless you spray it in the breather hole on the shaft housing..

Jan 14, 2014 | 1999 Chevrolet Silverado 1500

1 Answer

Serpentine belt pulley is making a loud noise, the one at the altenator.


If it is a squealing sound when you start up or water splashes in that area you need to adjust the tension or replace the belt. If the noise is actually coming from the pulley it may be the bearings on that alternator being bad.

Aug 11, 2011 | 2003 GMC Envoy

3 Answers

When I raise the hood and with motor running looking to my left there is a belt running and a squeaking noise at idle coming from that area. The van is front wheel drive so motor sits in there sideways.


Has it just started with cold weather? Does it squeal at first then as the engine is revved, stop squealing.

If so its probably your alternator belt has worked loose and needs tightening. I'd check this out first, if you've not done it before ask a friend with some know how for guidance. But as a guide, there should be about an inch of give when flexed on the longest run between 2 pulleys, if more then probably needs tightening. If more than a couple of years old, replace with a new one.

If it still squeals after tightening/replacing, you could have a faulty water pump bearing or pulley bearing. Either would require replacement to pre-empt catastrophic failure and resultant engine damage.

Dec 20, 2010 | 1998 Oldsmobile Silhouette

1 Answer

99 Altima with 190k miles warbling noise


It sounds like your water pump is going it usually vibrates throughout everything if it was your alternator it would show signs with your power the easiest way would to take your belt off remembering the belt route and spin the alternator pulley and the water pump pulley to see if they spin freely without noise

Jan 26, 2010 | 1999 Nissan Altima

4 Answers

1999 dodge durango 5.9 v8 loud squealing noise from under hood replaced tenison pulley, idler pulley, ac pulley/clutch assembley,and belt please help


You didn't mention the alternator, power steering pump, or water pump. In fact, any pulley other than the crankshaft one can have a bad bearing or dry seal. Remove the belt and spin each pulley while listening for any rough noise or squeal. If it was the crankshaft, it might be time to check the oil. Start the engine with the belt off to see if it does squeal. Make sure the noise isn't coming from the radiator fan(s).

Nov 17, 2009 | 1999 Dodge Durango

4 Answers

Alternator drive belt squealing


yeh, mine did the same thing with a hydralic belt. it was the bearings. mazda capellas use a lot of 6202 bearings which, luckily, are fairly cheap, and are commonly used in pool pumps. so you can find them at pool pump repair stores. although pool pumps use 6202 2RSR bearings. these are just the water proof type, but are excactly the same size and can be used.
to test if it is a bearing problem, remove the belt and try to twist the individual wheels by hand, you should be able to turn the 2 smaller ones.
from memory the alternator belt is in a fairly in accessable postition so the belt is going to be hard to put back on.try other things first, like wiping the inner side of the belt with a dry cloth to remove moisture.
worst case senario is your alternator has, or is starting to, seize up and you need to replace it.

Jun 08, 2009 | 1999 Mazda 626

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