Question about 2000 Oldsmobile Bravada
When I accelerate there is a high pitch noise but when I slow down or stop it goes away. What is the noise
I had a similar problem with an Acura. Check the transmission oil level. That sometimes causes a whining sound.
Hope this helps.
Posted on Mar 25, 2015
Check condition of drive belt and check tension of the belt as it may be slipping under load at revs.
Posted on Dec 21, 2013
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Posted on Jan 02, 2017
SOURCE: car is making a high
HIGH PITCH WHINNING NOISE IS FAULTY TRANSMISSION OIL PUMP.HAVE THE TRANSMISSION FLUID PRESSURE CHECK AT A TRANSMISSION SHOP.IF TRANSMISSION OIL PUMP TOO WEAK OR MALFUNCTION.YOUR TRANSMISSION WONT HAVE ENOUGH OIL PRESSURE FOR FORWARD GEAR , REVERSE GEAR, BAND OR SHIFT VALVES IN VALVE BODY.NOTHING WILL WORK TRANSMISSION.OIL PUMP LIKE HYDRALIC PUMP KEEPS EVERY THING WORKING..
Posted on Jul 12, 2011
SOURCE: AC fan doesn't work
Alright when it only works on high speed, then usually the resistor between the controls and the blower motor is bad because the default if on is at high speed so I would replace that first since it is much cheaper than replacing the blower, then if the blower is still making a bad noise, it is wearing out and needs to be replaced too. Both of these parts are under the dash on the passenger side. If you want a diagram, then I advise buying a Chilton or a Haynes manual from a local auto parts store especially if you plan on fixing it yourself. Let me know if you have any further questions.
Posted on Apr 26, 2009
that sure sounds like a vacuum leak ...the vacuum is highest when you let off the gas or at idle.. its lowest when you "give it the gas" ... you can use a small hose from your ear (or stethoscope) to listen to areas around the engine to find where the noise is coming from... check for a loose fan belt also ...check for cracked vacuum hoses .... if you suspect a bearing making the noise ... you can spray a little oil onto each bearing until you hear a difference in one ... in fact the noise might go away if thats the problem ..
Posted on Apr 12, 2010
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