Question about 2005 Nissan Xterra
The high-pitch whine is intermittent. After stopping the vehicle and turning off the engine, the noise "winds down" in volume and pitch until ceasing about 5-10 seconds later.
While driving, putting my foot under the pedal and exerting upward pressure, elevating the pedal less than a 1/6" stops the noise. Depressing the pedal 1/16" from its normal position also stops the noise.
First thought to be a vacuum leak, now I think its linked to the brake system electronics. Noise sounds more electrical than air-generated. Noise appears to emanate from electrical component under dash on driver's side that looks like a 1"x3" aluminum canister.
Generally only hear noise on warm days. While sensitive to ambient temperature, it makes the noise with or without AC operating. Any ideas?
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Posted on Jan 02, 2017
Probably the front differential, your probably hearing the famous differential gear whine. Change the oil, put Lucas for gears in it. You can get a hand operated oil pump to **** it out through the dip stick if it has one. Then fill it with the recommended amount.
Posted on May 06, 2009
hi this sounds like it could be one of the bearings that the serpentine belt runs on, or even the belt itself, is it more of a squealing noise? rather than a whining noise? if its a squeal it is possibly the belt , but if its as you say a whining noise you need to check the tensioners and pulleys, the best way to do this is to remove the serpentine belt, and the pulleys you can spin by hand just spin, if they sound grindy and or loose that will be the problem,with the other ones like power steering pump and water pump, just pull them back a forward and side to side, if you get allot of movement in them it might mean the bearings have gone in them if none of them are rough or loose, it will be the belt..hope that helps
Posted on Mar 24, 2010
i recommend that you take it into auto-zone or a car shop asap. from what you have described the ticking as, it sounds like a bottom knock. as for the whine i don't know.
Posted on May 14, 2010
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