1991 Volvo 240 Q&A
1991 Volvo 240 Question: Mass electrical problems
These are both common problems on the 240. First check the fuses, if they're corroded replace them all and clean the corrosion from the fuse connectors. Check power to the blower motor, the motor often fails but you may have a voltage delivery issue too. The taillight circuit boards, bulb sockets and connector all have issues so check it all very good. - Bret Bodas
I rinsed my 1986 volvo 240 dl enigine while the car was running with a high pressure water hose trying to find a transmission leak. I replaced spark plugs, distributor cap and rotor and my car will...