The transmission in my 2000 Buick LeSabre shifts

Oct 22, 2009

- 88smokey, thanks for the response. I checked the fluid, and it is clean and full. I think it may be the so-called modulator valve, but I don't know where that is located or how to replace it. Do you think I'm best advised trusting in a transmission shop, or could it be fixed by changing the fluid and filter? Again thanks for the initial response.

Oct 22, 2009

- As I mentioned, I checked the level properly, and I'm sure it's the transmission. In park, revving the engine does not produce a whine, and while moving, I put the transmission in neutral to coast, and the whine stops. I put it back in gear and the whine begins again. It only does it in gear and especially when I accelerate. I'll try to find a reputable transmission shop. Thank you very much.