replaced oil trap, broken eng torque rod. checked drain plug, stick, filter. checked all pan screws. some oil on engine side, most on pan and where trans/eng come together. tried some rear main sealer. helped some. stopped on short trips but not longer ones. and ideas. have not removed oil pan.
large oil leak, especially on hwy trips. where could it be on 2001 Volvo S80
by buggsbunny in Potwin, KS on July 23, 2013
ANSWER by A-FERNA4 , August 20, 2013
I WOULD LOOK INTO THE ENGINE REAR MAIN SEAL ,TRANSMISSION WOULD HAVE TO BE REMOVED FOR THIS REPAIR. AND IF ITS A TURBO .INSPECT THE TURBO OIL RETURN TUBE SEALS AND GASKETS.