One problem related to engine exhaust system has been reported for the 1996 Chevrolet Impala. The most recently reported issues are listed below.
Abs light comes on at random indicating that abs is disabled, restarting the vehicle resets this condition for a while, dealers unable to diagnose or repair. Egr and egr solenoid failed, 3 visits to dealer did not fix problem, but rather on two occassions they deliberatly disabled the egr system to hide the problem from me. I finally repaired the problem myself by replaing the egr solenoid at my own expense.