My car engine oil is leacking not from chamber wat to do

If your 2016 Maxima is smoking at start-up and whenever you come to a stop, and there is an oil film in the exhaust, it's possible that there is an issue with the engine's piston rings or valve seals.

The piston rings and valve seals help to keep the engine oil from entering the combustion chamber. If they are worn or damaged, oil can leak into the combustion chamber and burn with the fuel, causing smoke and the oil film in the exhaust.

Another possibility could be a clogged or damaged PCV (Positive Crankcase Ventilation) valve. The PCV valve is responsible for controlling the amount of blow-by gases that are recirculated back into the engine. If it's not functioning properly, excess oil can enter the combustion chamber, causing the same symptoms.

It's important to have your car inspected by a qualified mechanic as soon as possible to diagnose and repair the issue. Ignoring the problem can cause further damage to the engine and potentially lead to costly repairs.

White smoke comes from water, blue from burning oil and black from too rich a fuel mixture. If the engine was running before the oil change occurred then perhaps you put in far too much oil. This can force oil past seals and into the combustion chamber resulting in thick smoke. Carefully check the oil level on the dip stick for the correct fill level. If there is too much you must remove the overfill. If oil has entered the combustion chamber the plugs may be fouled. Pull one out and examine it. If it is not gray and clean you must clean them all before the spark will jump the gap and the engine can run. If the engine did not run before there is a great chance , based on white smoke, that water is entering the combustion chamber.

need to have the engine thoroughly cleaned then will be able to see where leak is coming from could be a blocked breather pipe,rocker cover gasket there are a few places to look at

The only effected way is to replace the oil pan.Oil pans are available at the wreckers all day long. This is aluminum right? Whats the problem with the pan.

PERFORM AN ELIMINATION OF ENGINE FLIUD CONTAINERS TO ACQUIRE THE TRANSMISION CHAMBER

The vehicle should only have an engine oil compartment, radiation compartment for antifreeze/ water, power steering fliuds, a water wiper blade spray dispenser compartment, and finally the transmittion fliud container area all situted within the engine entrapment area. Usually, opening the engine for the first time would require observing the fliud compartments that are identifyable from the remaining engine chambers. Observing closely on the fliud container should have written descriptions of what is expected within compartment. For example, the water fliud containers for wiper blades would usually have written lables as wiper blade fliud container, radiantion container would usually have the antifreeze demarkation logos visibly observable when engine is opened. Rely by elimination methods to ascertain the transmission fliud compartment. For example, once antifreze container, wiper water container, engine oild container, power steering fliud containers have been identified, the most like only remaining in the engine would be the transmition fliud compartment. Alternately, every fliud container within the vehicle engine is situated at separate areas. For example, the only fliud container closest to the transmittion chamber is the engine oil compartment. The vehicles usually require more engine oil than transmission fliud. Between both fliud containers, the smallest chamber for fliud oil is usually for transmission perposes in the absence of hydraulic fliud compartments with newer vehicles.

Your engine has an issue, on the cylinder with the wet spark plug, that is resulting in motor oil getting into the combustion chamber. The two main causes are a broken piston ring or worn valve guides/damaged valve guide seal. The former is a bigger issue as the pistons have to be removed to replace piston rings, which is a major undertaking and often reguires engine removal. The valve issue is significantly easier, which can be cured by what is called a "top overhaul". However, even a top overhaul is beyond the scope of a casual DIY pundit.

All water pumps leak when they blow up, that tells you it is shot. Just get a new one and replace it, if you can see it on the front of the engine, you shouldn't need anything else, most water pumps are buried under the sheet metal and timing belts, Just be careful with the belts, takes notes as to how they go. Hope this helps.

you are leaking oil into the firing chamber could be you need new valve guides or oil rings

Sir,
This is definatly not normal. what actually happens is that there is less oil in the engine but when you turn on the car and let it get warm in mean while the oil comes up on the chamber and shows that oil is full and later it sank back to lower oil chamber. So the point is that you need to get oil refiled in the car and there might be leakage in the car oil chamber. thank you.

There's a lot on any car that can cause loss in power.
A few of them are:
Mass air Flow sensor
Bad O2 sensors
Old oil or sludged oil
Bad Gas
Clogged catalytic converter
Loss of cylinder pressure or compression

I would start with the cheapest tests/fixes first
oil: if you haven't already and don't know the condition of your oil, change it. If your oil has sludge in it then you could have a leacking head gasket.

Next up, If your gas is bad fill the tank about half way and use lucus oil octane booster, and for a second half a tank pour in some seafoam engine cleaner. It will clean your fueling system, injectors, and pistons/chambers.

If those too don't help: get a compression test on the cylinders. Not expensive to have done, but could be expensive to fix if there is something wrong or the compression is leaking.

Next, go to a muffler shop and have your catalytic converter checked. A clogged or bad Catalytic converter may trap exhaust and keep it from exiting your exhaust system.
While your there you can have your O2 sensors checked.

If all of that is fine, replace the O2 sensors and the Mass air flow sensor. These components control the air fuel ratio. If they are going out your engine won't ever get the right amounts of gas and air to run properly.

It's a lot, but my general rule of thumb for trouble shooting any issue with a car is to start with the cheapest fix and work your way up.