I've got a civic ej1. Recently the engine was repaired by a honda tech. The problem is that the engine spill the coolant by the overflow tank only when I drive it, at idle about 3 minutes and nothing wrong only when I drive it. When that ocurrs I wait for engine to cool and add coolant to the radiator cause its empty and take the overflow tank to the MAX level cause its really over the MAX line. Drove it and again the same problem. I bleed the air and do the things I know but nothing. I think is the head gasket. Please help me!