It really depends on the color of the smoke. The most common cause on a 300D is going to be air introduction into the fuel system. The primary suspect is usually the old style "screw-type" primer pump. Replace that with a newer Bosch-style unit, replace your primary and secondary fuel filters if they haven't been already, check your fuel line connections (and replace any braided lines that are weeping or feel damp), and check the bolt tightness on top of the secondary fuel filter housing.
If you have just replaced any part of the fuel system or had it open for some reason, then loosen the 17mm banjo bolt on top of the secondary fuel filter about 1 full turn and pump the primer several times until just fuel is squirting out from under the bolt, then tighten it back up and try starting it. This will purge most of the air from the fuel system. Note that this trick will do nothing if new air is being introduced as mentioned above.
Other causes of smoke can be worn rings, bad injectors, bad glow plugs, and faulty injection pumps to name a few.
Black smoke denotes overfuelling. One of the temperature sensors has failed or generally needs tuning. Blue smoke, indicates burning oil. The piston rings or bores are worn. Check whether you are also using a lot of fuel or oil.
the tranny light comes on, because the idle speed or timing need to be adjusted.
White smoke is steam It may be a early indication that the head gasket is failing.
White smoke from the exhaust is a sign of coolant in the combustion chamber, and can be a blown head gasket or cracked head. This is very serious and will cause severe engine damage. Have this looked at by a professional. A slight jerking motion in the front while accelerating is possibly torque steer. This is normal. Check this out after dealing with the white smoke, which at this point is your first priority.
your kinda dumb oxygen only comes in one form and if u smoke while u are on oxy. that's even worse theres oxy. in the are we breathe and its safe to smoke in it....
The two types of secondhand smoke are mainstream smoke and sidestream smoke. Mainstream smoke is the smoke exhaled by a smoker, while sidestream smoke is the smoke that comes directly from the burning end of a cigarette or other tobacco products. Both types contain harmful chemicals and can pose significant health risks to non-smokers exposed to them.
Drive shaft is going out
Mainstream smoke is the smoke exhaled by a smoker, while sidestream smoke is the smoke that comes directly from the burning end of a cigarette, cigar, or pipe. Mainstream smoke is typically filtered through the smoker's lungs, while sidestream smoke contains higher concentrations of harmful chemicals and is released into the air. Sidestream smoke poses significant health risks to non-smokers, as it can linger in the environment and be inhaled by others. Both types of smoke contribute to the overall dangers of tobacco use and exposure.
its a bit hard not to smoke while smoking
dirty fuel line
A vibration in the front end of a Volvo S60 while accelerating is due to imbalanced tires. Swap the tires until the right combination is achieved.
You need to take your 1999 mustang v6 to a mechanic so that they can identify the reason why it produces awful smoke and stays for a little while then reduces.