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that sounds as if your engine breather system requires cleaning, the substance is emulsified oil, normally caused by poor oil, lack of oil changes, or possibly head gasket problems, clean out all the breather hoses, filter etc, run engine until warm, drain engine oil and refill with a good quality oil, renew oil filter and then run and check again after a few miles
Good job, sounds like you are onto it. Only thing wrong with your analysis, is it could be leaking all the time, and only starts smoking when exhaust is hot enough to burn it. Leaking power steering hoses can be very difficult to remove and replace-location makes them difficult to access, holding brackets may be hard to find. Likely you will need the front of car up on jackstands, and work from underneath. The two lines (the power line and return line) connect to the PS reservoir at top, and to the rack and pinion unit mounted on a crossmember below and behind the engine. Wipe both of them off to find the leak. You may have to run the engine while underneath to spot the leak. Often a small mirror helps to see up behind the engine. And remember, the fluid may leak at one place, then run along the outside of the line before it starts dripping on the exhaust. You may luck out and have a fitting on the reservoir that just needs tightening. Good luck.
Generally, white smoke is engine coolant burning. If it only happened for a few seconds, you may have leaked some on the exhaust pipes. I would check the engine oil and coolant levels with the engine cold, and then look for coolant leaks.
The most common source of the hair fibers and the smell is a defective catalytic converter. And if it failed it could cause excessive pressure in the exhaust as well as the engine. Its also possible something happened to the engine and damaged the converter.
You can tell by looking at dip stick if the oil has a creamy white substance there is antifreeze getting in oil (blown head gasket) or if ther is excessive white smoke coming from exhaust pipe upon acceleration. steam from under hood may be a coolant leak from a rubber hose or it may be leaking from the cylinder head onto the exhaust manifold also the car will be using up antifreeze.
When the engine is cold, go under the car and try to shake the exhaust system at the approximate spot you hear the rattle coming from. It is most likely a heat shield for the exhaust, or a broken (rusted through) hanger for the exhaust making the noise you describe. You can probably correct it with a wire or couple of screws to secure the shield, or replace a hanger.
That's actually normal the result oc complete combustion is (H20)water. The blackish cold is just a little carbon from exhaust pipes. As long as everything else is normal its absolutely normal. Good luck if I fixed ya give me FIX_YA comment
Sounds like your oil leak is finding hot exhaust manifold and smoking/smelling. Make sure the oil filler caps and breather hoses that connect to the valve cover (Top of Engine) are attached securely. Try and determine exactly where the oil leak originates [Valve covers - top side, oil pan - underneath, or shaft seals - front and rear of engine, or left and right ends with the sideways (transverse) engine mounting]. Also check oil level - a blown head gasket or cracked head or block could lose coolant into the oil reservoir, causing an overfilled and thus leaking situation... this will show up as a creamy looking substance on the dipstick. If the engine is not making any other signs of abnormality, strange knocks or clicks, overheating, or losing gross amounts of fluids, make sure it has enough oil in the crankcase and drive it to a reputable mechanic for a true evaluation of the problem.