My engine seems to be running hot. it goes past M, almost to the red zone....what would be the best way to cool it back down.....should i flush the rad. coolant?
First check to see if there is enough coolant and if it is right ratio of antifreeze to water. Then my guess is the thermostat. If the thermostat is not opening then the coolant is not going through the radiator therefore causing overheating. If that's not it, it's a harder problem that requires a mechanic.