Post by
SlowFiveOh »
https://forums.nicoclub.com/slowfiveoh-u468.html
Sun Sep 15, 2002 3:34 pm
carbon buildup is normal and cannot be avioded, it is a byproduct of the combustion of fossil fuels. as far as cleaning out your exhaust...why? you wont gain anything from it.
white smoke is a bad headgasket, check your coolant and oil, if your coolant is brown from oil thats one sign its blown, or if there is water in your oil or you have the dreaded "milkshake" thats another sign. do not drive with a blown headgasket as it will warp heads and easily cause other problems frim having water mixing in with the oilif the smoke has a bluish tint to it, then you are burning oil, bad piston rings or valve guides would be the culprit there.
a bad converter can give off a rotten egg smell, sometimes, it may also ratlle around inside, get underneath the car and shake it to see (obviously after it has cooled off)