Hi so I recently bought a 9-3 Saab manual transmission from a family acquaintance, I drove it to my house perfectly fine and parked it, few days go by I try to drive it to go to get it inspected and the upper radiator tube plastic bursts so I get it towed to the nearest mechanic for them to have a look and repair it. When the repair is finished both the tow driver and the mechanic tell me they can't seem to get the car to reverse, it goes into the reverse gearbox but doesn't reverse just moves forward. Does anyone else seem to have this issue or have had it previously in the past? and what would be wrong with it?