Rear main seal
To much oil is worse then not enough. If it's way over full then when the engine is running it will cause the oil to go out of the weakest point and that is the engine gaskets.will Cause oil leaks.
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.
Check for vacuum leaks.
Oil leaks will not cause an engine to heat or to seize. A lack of oil will cause it to get hot and seize which is caused by not checking the oil level and adding as necessary to keep it full. As long as the engine has the proper amount of oil it will run just fine. The leaks may cause a mess, waste of oil and money, but they will cause no damage to the engine.
Exhaust leaks close to the engine.
it could be the window
Engine overheating. Check the radiator for leaks in the hose pipe or radiator, otherwise the water pump is faulty and will need replacing
Exhaust leaks, bent pushrod
check for exhaust leaks around the manifold inlets and outlets.
Yes, any leak in critical systems can potentially cause engine stalling. For instance, a vacuum leak can disrupt the air-fuel mixture, leading to poor engine performance and stalling. Similarly, fuel leaks can reduce the fuel supply to the engine, while coolant leaks may lead to overheating, all of which can result in engine failure. Regular maintenance can help identify and address leaks before they cause significant issues.
A fuel leak and a source of ignition such as faulty spark plug wires.
check for vacuum leaks that wull usually cause this problem