Yes.
can exhaust manifold leak cause you to burn oil
Yes, A hole could cause the O2 sensor to see a lean condition and add excessive amounts of fuel. The excess fuel will damage the converter overtime and cause the code.
exhaust?
if it is the exhaust manifold ,yes. if your breathing in those exhaust fumes you can get carbon monoxide poisoning
A broken piston ring is the most common cause of water in the exhaust manifold. A bad valve in the cylinder head can also cause the problem.
No, it will not cause smoke from the exhaust pipe. However the leaking oil can drip on the exhaust manifold where it will be burnt and smoke.
Intake manifold leaks will cause the engine to idle rough and get poor fuel economy. An exhaust manifold will have no symptoms other than the sound of the leak.
squeeking from exhaust manifold is caused by a leak allowing exhaust gas to leak. it will only get worse as time goes on unless it is fixed
Valve cover gasket
It could.
Advanced timing can cause that to happen
Yes, if it is leaking or if when it was replaced, oil leaked onto the exhaust or exhaust manifold.