Buying used car parts can make sense if you have limited resources, but there are some used car parts you should never buy. Consumer guides recommend that you should never buy used parts that can compromise the safety of your vehicle and passengers. A car owner should always purchase only new safety belts, brake parts, air bags and electronic sensor monitors for system problems. Buying second hand versions can compromise the safety of your vehicle.
Your car’s engine may need to be replaced when you notice blue smoke emerging from your car’s tailpipe. This happens when oil leaks past piston rings, valve guides and cylinders and enters the combustion chamber of your car, where it burns along with air and fuel releasing blue smoke into the environment. Other parts of your car will ultimately not be efficient, till cylinder bores and valve guides of your car wear out. Another sign for which you might need to replace your car’s engine is when blue smoke is accompanied with loss of power due to broken pistons. Broken pistons cause a loss of power because oil is allowed to escape into exhaust port. Along with these symptoms, rumbling noises and overheating are signs which you need to watch out for. If you detect any one of the causes you know that you need get the engines of your car replaced.