I have a 1994 Buick Regal with the 3800 V-6 and the 4T60E transmission. This car has 46000 actual miles and was purchased from the original 85 year old owner who is now deceased.
The problem I am having is this noise from under the hood which I cannot pinpoint.
It's a constant higher pitched humming/whineing noise that changes pitch when the engine is revved. The more you rev it the higher the pitch of the noise. It also changes pitch when it's driven and it changes gears.
The pitch gets higher as it's about to change gears and then low again according to the speed I am driving. Like I said it will do this in park also and changes pitch as I rev it up.
Trans fluid is about a pint low as it has a leak in the pressure hose, but still pink and the power steering fluid is at the add mark.
I just got this car and was wondering if this is something on the engine such as a tensioner pully, alternator or is it something in the transmission itself. It shifts smooth and normal.
Any info would be appreciated.