Transmission whining noise

[lskrogers]

Can anybody help? I have a 2000 Ranger, 4X4, 3.0 engine. Vehicle just turned 100,000 miles. I have never had any problems with the truck and believe in periodic maint. Transmission was flushed and filter changed by Ford garage at about 90,000. I've noticed that when accelerating from a stop, not always but certainly too often, I hear a whining noise that increases with rpm's. If you let up on the gas, the whine disappears. If you step down on the gas again, the whine may come back but not always. This problem seems to be more prevalent in very cold temps-I live in Minnesota. Could it be the power steering? I'm guessing not but I don't really know.
Anybody have ideas, fixes?

 

[tonyjklh]

im not positive but i belive it could be the power steering. my steering pump makes a whining noise and i originally thought it to be my tranny, but listening closer i could tell it was not the tranny. try turning your wheel back and forth a bit next time you hear the noise, if the noise variates while turning the wheel its the pump.

 

[03ranger4x4]

my 03 always makes a whining noise in 1st gear, exactly how you described where when you left off the gas it goes away and comes back when you hit the gas. Except mine does this all the time. Depending how loud it is, it might not be of concern, ive heard the same noise from alot of automatic rangers.

 

[Yellowsplash]

The planetary gears tend to whine in first and second gear. Completely normal. The mustang (5r55) does it very loud. I took it to the dealer to have them check it over (its a brand new car and wasnt sure if its normal) and one of the tech's asked me if I had installed a turbo.... After talking to the trans guy and doing an oasis check there was no tsb for it and was assured it was all normal.