How to know if an engine is bad

How to know if an engine is bad

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When buying a car, there are things you really need to know, especially when buying a used car. Of course the biggest expense on a car is the engine so you want to make sure you are aware how to know if an engine is bad or not.

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It is always important to look over any car you are thinking of purchasing regardless if it is new or not but when considering buying a used car, ignorance can cost you some big bucks. Not to say that people selling a used car is out to swindle you because often they do not know the signs an engine is bad.

The first thing you should do is start with the visual inspection of the engine and the engine compartment. Notice how dirty or clean it is, look for oil or fluid residues anywhere and everywhere. An engine that is heavy in oil film on top of the motor could mean a leaky valve cover gasket. Fluid residues on the firewall or the inner fenders could mean the engine has been spraying oil, coolant or some other fluid and that is not a good sign.

Pull the oil cap off and look to make sure it is cover with some oil and not dry, because a dry cap could mean the engine is run low on oil often or that it has coolant in the oil drying the oil up on the bottom of the cap. You also want to make sure the cap isn’t covered with looks like a chocolate milk shake. If there are signs of this, you are looking at most definitely an engine that has coolant mixed in the oil and this is a strong indication of a blown head gasket or a crack in the head or block.

Be sure to look under the car, more specifically at the bottom of the engine to see how oily it is and to see any signs of any type of fluid leaking. Smell the exhaust pipe for excessive odor of raw gas, burnt oil or coolant…


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