One problem related to engine exhaust system has been reported for the 2001 Volvo S80. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Volvo S80 based on all problems reported for the 2001 S80.
As the consumer was pulling away from curb at 3 mph vehicle suddenly accelerated without touching the gas. Brakes were not functional, and vehicle shot through three intersections before the emergency brake was pulled. Mechanic informed the consumer that mass air flow sensor was faulty.