Whining noise occurs when reducing speed and stops when placing transmission in neutral.

Its probably not trans. More than likely its coming from a ring/pinion. Normal wear and tear will cause a slight excess increase in play producing a gear whine. One way to reduce it is to use a thicker gear oil. 85-140 weight should reduce or eliminate at.

sounds like a transmission, try to shift it to neutral after you reach 2000 rpm + and see if the whining will stop

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Sounds like worn rear gearbox bearing. It its manual , and bone mote than 120,000. Remove fuse to radio and see if it still makes the noise

There are a couple of things to check. If your power steering pump is low on fluid, or a bad bearing is in the Alternator, they will whine. The PCV valve or any hole in the Vacuum lines will whine as RPM is increased. Even having the Air filter box not fully seated will make a whining noise.

Now both automatic and manual transmissions can whine as RPM is increased. Check fluid for each.

Serpetine belt and pulleys-can make noise.

Sometimes you can shift into neutral at any speed and the engine rpm will drop almost instantly as the car rolls at speed. If the problem disappears as soon as the rpm drops, then an engine part probably is the reason.

When you say whine does it only occur under acceleration only? If so most likely the wheel hub assembly or some will say wheel bearing but on these vehicles it is complete hub assembly. If you turn or swerve one way then the other does it go away in one direction? If so another strong indication of hub wearing out. If not, and it is a really high whine with acceleration it is also possibly the transmission. I have heard of this complaint before, it's not a sign of failure just a noise that develops due to the pressure placed on bearing under a load. First change fluid and filter for tranny after a good flushing. Replace with high quality fluid and a bottle of transmission seal restore product. Go 1000 miles, change fluid again, if noise is still there turn up radio.
Sorry but just a whine under acceleration isn't a lot to go on. But I'm willing to bet wheel hub. 9 out of ten front end whine complaints is wheel hub or bearing especially on a heavy 4x4 suv

does it do this in neutral? Does the noise sound metal on metal?

normally, the only part of your automatic transmission that will make a whining noise is the pump. it usually whines when iether the fluid is low or more commonly when the transmission oil filter is getting plugged up.

the power steering pump will also make a whining noise too.

turn the wheel all the way to the right and hold steady pressure against the stop. this puts maximum force on the power steering pump and, if the power steering pump is the one making the whine, it will change the sound of it. (usually louder).

if the trans pump is making the whine noise, it should sound different in neutral compared to drive. this test will really only work if it make the noise without the vehicle moving. if it wont do it at idle hold the rpms at 2000 or so.

if you decide the noise is coming from the transmission, and the transmission filter has not been replaced (assuming you installed a used transmission), replace the filter by removing the oil pan.



oh and also, if it is the power steering pump you should be able to make it make the whining noise while the vehicle is stationary. if it wont make noise unless its moving its not the power steering pump.

Imput shaft bearing. It just happened to me. You're looking at a $400 fix.

Run the car from the top of a hill and let it coast at your whining speed. Put it in Neutral, does the whine disappear?
If not its in the drivetrain (wheels, driveshafts, tranny)
Very unlikely to be the timing belt. If it appears at a fixed speed then its drivetrain, if it whines at fixed revs its the engine.
Most likey the transmission I fear....Tires will also make loud whining noise too though...

check your rear end and make sure it has plenty of gear oil..if full then there is friction in it somewhere and it is probly getting ready to go out.