why does my coolant box smell like gas even in radiator.
please let me know.
If the coolant reservoir or coolant in the radiator smells like gas or exhaust, that could indicate head gasket problems. When the car is running, do you see air bubbles in the radiator? Be careful, only remove the radiator cap when the coolant is COLD. Has the engine been overheating at all? Many shops can do a test to check for exhaust gasses in the coolant.