1986 Oldsmobile Ciera 6 cyl Front Wheel Drive Automatic 223000 miles
I have a high mileage 1986 Ciera with a carbureted V6. I recently replaced the vacuum modulator on the transmision and it solved most shifting problems. However, it is still slow on some upshifts and I get a strong vibration on exceleration when in 'lockup'. Any suggestions?