Moaning/Whinig sound while decelerating.

[TheDrizzle]

I have a 2000 Pontiac Grand Prix GT V6 3.8L with about 160,000 miles. When decelerating there is a moan/whine sound coming from the engine. When I'm driving and take my foot off the gas its starts to whine until I come to about 10mph. I cant really hear it under 10mph when coming to a stop. You can hear the whining sound downshifting with the engine as well, the noise pauses for half a second as the gears change kinda like rrrrrrrrrrrr rrrrrrrr rrrr . That's really all the info about it that I can provide, when I have it parked and the hood popped I cant really hear it while revving the engine since as I said it doesn't really make the sound until its over about 10mph.

 

[melsg5]

Have you checked the transmission fluid level? When was the last time you changed the trans. fluid and filter?

 

[TheDrizzle]

I just checked the level and its right where it should be. I suppose I should change it as it has been a couple years since last time ive done it. Do you think this might alleviate the problem?

 

[melsg5]

If the noise is transmission related it might, a couple of years means how many miles?