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they are all around the engine, 2 or 3 on each side (front wheel drive cars like yours the engine is sitting sideways) and sometimes one on the end but usually have to take the transmission off to access that one, they are just silver (if not rusted up) plugs that get tapped into the engine, to get them out just tap on one edge until it flips sideways and grab it with pliers or get screwdriver behind it. try not to let it fall inside the engine. Generally they are called frost plugs and they are to protect your engine from cracking in case water freezes inside of it but if you have good strong anti-freeze (glycol) in your rad that shouldnt' be an issue but worse than the frost plug popping out is cracking the radiator due to insufficient strength of your anti-freeze.\
A lot of cars now may have a block heater and this is inserted into a frost plug once removed and a bolt tightened, this is the weakest link usually and may leak, sometimes can be tightened but a block heater could be where your issue lies.
There doesn't appear to be a freeze plug on the front of the block.
They are always located on the lower sides of the block.
If you can see water on the front of the engine do a visual inspection when the motor is off and cold.
Take a rag and dry off any noticeable moisture. Start the engine and let it warm up, carefully check all the areas listed below to see if you can isolate the leak.
The radiator could be leaking and dispersing coolant towards the motor while driving the car. A hose or fitting could be leaking. The intake manifold or thermostat gasket could be leaking. The water pump could be leaking at higher RPM's.
If it's from the front of the engine, the water pump may have failed. Check for water coming out from the bottom of the pump. Was the overheating caused by low coolant level? If not the pump, check your engine freeze plugs and hoses.
will try to help. where is the leak coming from? can you tell?under the front of motor where the engine fan is? could be water pump. could be a busted hose,upper or bottom radiator hose.there are 2 hoses that run to your heater core at the firewall or dash panel, could be there. leaking from sides of engine? could be a freeze out plug rusted through or if it's gotten below freezing and you did'nt have anti-freeze, most likely a freeze plug, they are designed to save your engine block from busting when you don't have anti-freeze in freezing weather. if you can repost your problem with a location, front, sides, or inbetween the back of engine and transission, i can help you. hope this helps and thank you for choosing fixya.com
it could be the water pump if the front of the engine is on that side. or heater hoses. with the engine cold, fill the system full. use straight water so you won't waste anti freeze. run the car until it gets hot. the system will pressurize. inspect the suspected area. the leak should be apparent. if the leak appears to be running from the engine block, it's most likely the pump.
Without knowing what year or engine size is, I/m just guessing??????? But the 3.1L engines are FAMOUS for intake maniflod gaskets leaking. Look where the intake bolts to the heads. A freeze plug is in the block. Freeze plugs dont leak unless you have been running pure water or weak/cheap anti-freeze. They will rust out from behind and its BIG BUCKS to replace them all.