High pitched whining sound, I've already changed out the power steering pump. How can I find the problem. The belt is in good shape. The whining sound increases when th accelerator is depressed
Re: High pitched whining sound, I've already changed out...
You may have a bad idler pulley. Locate it, spray a lubricant (WD-40) behind it. You don't want to get it on the belt surface. If the noise goes away, you have found the problem.
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Possible bearing in one of the drive pulleys. I have changed numerous alternators for this noise. Take the belt off and start the car. If the noise goes away you know it will be pulley related and not transmission related. If noise goes away, spin all pulleys by hand to determine the defective/noisy one
A high pitched whine like that indicates a bad bearing. Water pump, power steering pump, accessory belt slipping, alternator bearing, or in the worst case scenerio, Transmission pump.
Take the belt off and spin all of the pulleys. the bad component should be obvious. high pitch whine is usually alternator bearing for the 98 3800 its timkin part# 100ccab or it can be the power steering pump(but the pitch will change as your steering if it is that) water pump, idler and tensioner pulleys(if you have to change either one, replace the tensioner itself). if you have the supercharged model there are a few parts that can whine( or the s/c is low on oil.)
This could be anything from the pump in the transmission to the alternator bearings/bushings to the power steering pump. Could be an idler pulley bearing, but I doubt it. Hint: If the noise is very high-pitched, check the alternator. If it is a lower, medium-high-pitch sound that changes some when you turn the wheels, check the power steering pump. If it is almost like a moan or a "Whooo" sound, that's the transmission pump.
Check the power steering fluid if its low it could cause this. Also could be alternator, water pump, ac compressor, or idler pulley. My bet would be on the idler pulley, its the one that keeps the belt tension constant. Remove the belt and check this pulley for slack also spin it by hand.
Good luck, dont forget to rate.
This sounds like a power steering issue. Check the fluid and if it is full then the pump may be going out. The way to check if the problem is the power steering is to turn the wheel while the engine is running. If the pitch changes then it is a power steering issue. Hope this helps. Good luck.
Sounds like a dry/failing bearing or power steering pump noise. You first need to try to track down where the noise is originating, and the most likely place is at the front of the engine.
I would start by listening with the hood up while parked with the engine running and the noise present, and seeing if it is coming from there. If so, the most likely cause is something connected to the belt - e.g. AC compressor clutch, tensioner, power steering pump, or generator. Can also be caused by the belt just slipping (warn out belt, tensioner not working properly).
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