Hello everyone,

I have a V70 P2, 2007 Bi Fuel with B5244sg engine. A few months ago, it started to overheat only when the car was parked and the engine was on. A few days ago, my mechanics opened the engine, changed the head gasket, repaired the head, changed the water pump, changed the thermostat, cleaned everything, but the problem still exists. It looks like the pump is not working, water is not circulating through the engine. After a few minutes of work, the pressure in the water tank appeared, but it was not from the exhaust gases, we checked. All this happens only when the car is parked, when the car is driving, everything works very well. Does anyone have any idea what the problem might be?

Thanks in advance