If you have antifreeze coming out of your oil pan you're in trouble.
Knock comes from poorly combusting gas/air mixture in the cylinders. Engines need oil to lubricate the pistons moving in the cylinders and the crankshaft, gears and mechanisms controlling the valves. If you have antifreeze coming out of your oil pan, that probably means you have a cracked engine block because antifreeze circulates in the cooling system, which is supposed to be entirely separate from the oil circulating. More likely is that the antifreeze is leaking out of one of the pipes or hoses, especially at connecting points, and dribbling down the side of the engine to the oil pan at the bottom of the engine, and it just looks like it has come out there. If the engine loudly knocks all the time it may be a thrown rod.
The green liquid is antifreeze. Check your motor for water leaks. This can have a bad affect if left unattended. You can overheat your motor and do damage.
it is probably your water pump
smell of antifreeze and no visable leaks usually indicates that the heater core needs replacing
possibly the water pump or a bad hose
If there is a small drip of antifreeze under the car behind the right front tire, this could be from the evaporation hose. Antifreeze may drip after the car has been run with the air conditioning on. If the air conditioning was not on just previous to noticing the antifreeze, it would be a good idea to check all of the hoses for leaks.
Same color as what?
Oil/antifreeze mix is usually caused by head gasket leaks or valve cover gasket leaks.
Find where it is running out and repair the cause.
no
If the front of the engine leaks coolant there is a blown head gasket. This requires immediate repair as it can lead to a blown engine if not managed appropriately.
AnswerCheck the water pump. If the water pump bearing is worn out there will be a streak of antifreeze leaking from the bottom of the input shaft.Another prime area for coolant leaks is the intake manifold gaskets. The original gaskets fail at the front corners where the intake manifold meets the heads.
Could be the intake manifold gaskets are leaking.