My 2001 Toyota Corolla has started making a whining noiseThe a/c clutch needs replacement but...

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Old 25 Jun 2010, 04:00 pm   #1 (permalink)
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Default My 2001 Toyota Corolla has started making a whining noiseThe a/c clutch needs replacement but...

...can thiscauseit? Well details, check engine light came on post catalytic o2 sensor needs replacing, the a/c clutch just went out but figured i dont need no a/c right now. (my windows roll down) well i checked the oil and i have oil power steering fluid, radiator fluid all fine. but i just acquired a whinning/ whirring noise not a knock or ping just loud whirring noise. i cant find the location of the noise though, sometime sounds like its coming from the back of the engine sometimes the belt area and sometimes the front by the radiator fan. so i have no clue its always the same noise though. any help would be great, i have scoured the web for answers and found a yootube video that has the noise but no comments on it saying what it was or is. any help would be greatly appreciated, oh its an automatic corolla S type 110k miles with oil changes every 3k miles. thanks















I put some oil treatment in. just in case, i tried to listen to the sound via a screwdriver to no avail. I am partially deaf and have alot of trouble figuring out where a sound comes from.
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Old 25 Jun 2010, 04:07 pm   #2 (permalink)
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ac clutch could be a clue. even when its not working, it still has a bearing that allows the pulley to function like an idler. Get a super long skinny screwdriver and carefully place the end in a safe place close to the ac clutch, waterpump, serp belt idler. Put the handle end next to your ear and listen to where the noise seems loudest. This is where the noise originates and can help to diag the problem. You must be real careful around moving parts! A stethescope with just the tube directed at those areas will also work as it can be used directionally to hear where the noise is louder(close) and softer(farther away from problem). this should get you in the ballpark of the problem. Good Luck -- SB
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