very unlikly. How long was the vehicle run for with the flusing agent in oil pan because this can cause damage, not to head gasket but to rings,cylinder walls,rod bearings etc. now was this engine or coolant flush.
It could be the cause of the knock only if the gasket was bad and leaked out almost all the oil.
could it be white vapor? If so its probably head gasket.
if I understand your ? can not changing an old oil filter gasket casue damage to your engine NO only if it leaked out all the oil other wise no. If the filter change was the cause of the leak and you lost enough oil for the engine to start clattering, yes, it caused the permanent engine damage.
Engine coolant leaking into cylinder. Possible bad head gasket.
possible bad valve guides or blown head gasket possible bad valve guides or blown headgasket
I blown head gasket can cause an engine miss which one cause a rough idle.
Lots of things can cause a head gasket to fail, but the usual cause is engine overheating. Things like warped or cracked heads, incorrectly installed gaskets or heads, incorrectly torqued head bolts, torquing head bolts in the wrong sequence, are also common culprits. Not having the oil filler cap installed, while not a good idea, shouldn't result in head gasket failure. No antifreeze in the radiator (either just water filled or empty, not sure which your question meant), or not having the radiator cap installed, could definitely cause engine overheating, and therefore, a blown head gasket.
The most common cause of a blown head gasket is an over heating engine. Low coolant or coolant not circulating through the engine causes the engine to heat up and the gasket to fail.
broken engine gasket.
Yes, that is possible. A blown head gasket will destroy the engine.
leaking head gasket
Yep
Your toilet may be leaking only when flushed due to a faulty seal or gasket in the flushing mechanism. This can cause water to escape when the toilet is flushed, leading to a leak. It is important to address this issue promptly to prevent water damage and higher water bills.
It could be the cause of the knock only if the gasket was bad and leaked out almost all the oil.
Yes, if the radiator is clogged and the engine overheats. The main cause of head gasket failure is the engine overheating.
most likely an intake gasket
Absolutely yes.