[avatar307]

I'd be willing to bet it is simply Torque Converter Clutch noise caused by the TCC Solinoid.

It doesn't mean that the solinoid or the clutch is damaged or malfunctioning. It is normal behavior for the 1995 4T60-T transmission. The older the car gets, the more noticeable the noise is due to wear on the clutch assembly, but that doesn't mean it is worn out.

I've got 175,000 on my 1995 LeSabre. Mine does it, and has been doing it for a long time. 4 years and 40,000 miles at least.

Rumor has it that it is caused by a programing change to the powertrain computer to achieve better gas milage. The TCC Solinoid controls the fluid flow the TCC (Torque Converter Clutch), which engages in both Drive (3rd) and Overdrive (4th) gears.

The TCC Solinoid is controlled by the computer. So simply put, the computer occationally opens/closes the TCC Solinoid when it shouldn't.

This usually occurs around the 2-3 shift point and more often the 3-4 shift point (or around 35 and 45 MPH with light throttle).