1982 Chevy Corvette V8 Two Wheel Drive Automatic 67000 miles
The transmission in my 82 Vette was rebuilt last year. I also replaced the engine and tranny mounts. When going up grade and car has shifted through all gears, there is a fairly loud noise resonating through the car. It usually occurs between 30-50MPH at lower Rpms, under load or climbing a hill. Let off the gas when it's groaning (reducing the load/lug) noise is immediately gone. Push the accelerator down to force downshift of transmission. Noise immediately goes away as tork is lessened and RPMs increased due to the downshifting under tranny. The noise is noticiable and I think it will be hard to duplicate in a shop as the need for load/lug is key in generating the noise. Push it hard from 0 - 100mph 100% of the shifts are smooth as silk and NO NOISE occurs at any point in time during a high torque run. Try baby it, you might be able to avoid the noise entirely on the level or going down hill, but going up hill, once the auto has shifted into 3rd or 4th and the RPMs are still low and the vehicle is still on a climb or underload and the noise is there and significant! Any ideas on where I might start would be greatly appreciated!
have the same problem?
Sunday, June 13th, 2010 AT 1:07 PM