Weird noise while accelerating softly, goes away around 2nd gear or 15mph Options

[theroseoncloud9]

Hard to describe the sound. Its not squealing belts. It's noticeable with windows up. Almost like a whine but gentle. And it goes away after it reaches higher speed. Any idea what it might be. I have a 1994 GT automatic with 167k.

[Xander_X]

Sounds like the planetary gearset. There are a couple of planetary gearsets in the transmission. Each one is used differently for the corresponding gear range. That is why the noise goes away after the gear range shift to 2nd.

When enough teeth wear you've basically got two cylinders trying to turn each other. They'll whine as they spin through all of the metal shavings that have been created by teeth breaking off of the gears until there aren't enough teeth to touch each other and turn the driveshafts.

It is not a normal sound to have within helical gears ... it is however normal with spur gears such as most reverse gearing. Mine does not make any noise, whining or other, in any gear.