So im losing about a gallon of coolant every few weeks but i dont know where it is going, I changed the radiator, the hoses, the thermostat and the radiator cap twice... The oil looks fine and i hear swooshing noise in my car, I also smell coolant when i open the hood of my car and sometimes from outside my car.. Where should i look, I dont think i see any coolant leaking but i could just be blind. Also i flushed my coolant completely 3 different times and that didnt help.

 

What year and engine do you have?

 

Do a pressure test on the cooling system. You could have an internal gasket leaking. Intake manifold gaskets are a common failure point. It could be dripping inside the engine and burning off before it mixes with the oil. Less likely is a head gasket but it is possible. Another possible leak point is the riser pipe that connects the manifold to the radiator hose. They have a tendency to rust out and get pinhole leaks. All of the above should be detected with a pressure test. I think I paid about $20 to get one done a few years ago.

 

leaky heater core draining out the air conditioner condensate line?

 

I am willing to bet that it is your lower intake manifold gaskets.

 

its a 2000 4.3l engine

 

yea im thinking im going to have to get a pressure test done to it, ill post an update once i get it done

 

Check the water pump for leaks also,it could be evaporating as you drive.

 

Soooo I went to work on my car this past weekend and I think i found the leak, It must be a newer leak because there never used to be a puddle but any ways I think that it is my intake manifold gasket that is leaking, Its right above the pulleys and under where the thermostat bolts down

Edit: I took it to a mechanic and he said that it looks like its a freezer plug and that its probably super rusted, they quoted me like $170 for it and they said its worth it to just change them all and after reading how bad they are to change ima just let them do it

 

Sounds like your intake manifold gaskets are leaking. I have never heard of the freeze plugs going bad on these, but I suppose it is not out of the question.