The head gasket has failed and will need to be replaced.
The head gasket seals the place where the engine block and the cylinder head meet, there are many oil and coolant passages in that area, so when the gasket blows out the coolant in the nearby passage vents into the cylinder closest to the failure point.
Perhaps valve cover gasket is leaking oil onto plug area
you would take out the spark plugs still attached to the spark wires. place the metal of the plugs onto a grounded metal spot. make sure they are not touching in order to prevent damaging them or blowing fuses.
I'm assuming your grand am has a 3400 v6 which are known for intake and head gaskets leaking. so its possible that one of those gaskets are leaking so bad that coolant is leaking from intake/heads down onto your valvetrain and then down into your oil pan. more than likely its your intake gaskets leaking.
No likely but possible if coolant is leaking out onto some electrical component.
Yes. All the gasoline needs is a source of ignition like a wayward spark from a spark plug wire.
Coolant is leaking- either onto the ground or into the engine where it mustn't.
Heater core is possible, coolant could be leaking externally onto engine and giving off that smell. Ruptured, cracked or leaking bypass hose; Ruptured, cracked or leaking heater hose; Worn or damaged radiator cap; Rusted, corroded, or damaged radiator may be leaking antifreeze/coolant; Loose, damaged, or faulty radiator drain plug; Worn or damaged cooling fan motor or circuit; Thermostat stuck closed; Cracked or leaking water outlet/hose; Damaged, worn or leaking water pump; Leaking or defective heater control valve; Freeze plugs are cracked or leaking. to smell burning anti freeze it would need to be leaking onto engine. most likely a small leak in a coolant hose somewhere, and even if it is heater core , it is sure not going to cost 500 bucks a heater core doesnt even cost 100 bucks to buy and they are easy to install
If the sparks are coming from the wires that fit onto the plugs change all spark plug leads. I can't understand how the engine is running at all.
Coolant leaking into engine oil? Leaking head gasket Run engine to normal operating temperature pull oil dipstick and let a drop fall onto hot part of engine - oil will smoke coolant will sizzle
The excess drained out of the overflow until it was down to the level it should be...
Probably because you got the spark plug wires plugged onto the wrong spark plugs.
The order is on the stock intake manifold. It is 1,8,4,3,6,5,7,2