exhaust gas recirculation (EGR)

At the end of last week, Toyota quietly announced a service campaign to rectify a potential problem with the exhaust system on the 2012 Toyota Prius V. The voluntary service campaign will focus on weak actuators located within the exhaust heat recovery system on the 2012 Toyota Prius V which, under some circumstances, could cause an engine coolant leak. Fitted to many modern cars, the exhaust gas recirculation (EGR) value opens when it encounters back pressure from the car’s exhaust and channels it back into the combustion chamber. Capable of heating up the car’s coolant and...