How to Check an Engine before Buying a Used Car

We all know that the used cars market is gaining its strength day by day. While selling a used car, a seller needs to check the car precisely before selling so that it can be valued properly and also there is clarity of future repair cost for the car. The most important thing that every buyer should look for is the condition of the engine, as it is most expensive to repair. It is really important to get the mechanical condition checked by a qualified mechanic as it cannot be identified during a test drive.

Here are few tips on how to spot engine problems or lack of maintenance while checking a used car:

• Check service record

Although it is not always possible to get service record but if you can manage to get it from the seller it will be great. Once you get access to the service record look for oil changes and mileage records. It is always good to get information about maintenance of the car.

• Have a look under the hood and notice for any smells from the engine

Here you look for the leaks, smell of burnt oil or antifreeze, signs of poor quality repairs or lack of maintenance, as well as 'racing' modifications. An engine shampooed just before the showcase may have some problems, although not always. Thus, you need to check everything inside properly.

• Visible oil leaks

Oil leaks may not be visible from the above. Thus, look from underneath and take a photo or a video with your phone to check the lower part of the engine and transmission. Everything should be dry. 

• Coolant and other leaks

A cracked radiator with coolant leak calls for a serious problem. Used cars with such problem should be avoided.

• Check for the color and level of oil

To check the oil, it is important to put the engine off. If you do not know how to check engine oil you need not worry. The Owner’s manual directs you on how to check the oil. Low level of the oil indicates either the engine consumes oil or it has been long since the last oil change. Normally the level should be close to ‘Full’ mark and should not be mixed with coolant. Avoid a car if such is the case. 

• Check for the timing belts and hoses 

Not all cars have timing belt. There are some that have a timing chain instead. In most of the cars timing belt needs to be changed between 6000 to 100000 miles. Since the cost to change the belt is really high it becomes important to check the condition before making a deal. So, ask your mechanic to check it thoroughly as it is under the cover which needs to be removed.

• Take a test drive and notice for any noise

Once you start the car all the warning lights should be off. If lights for the engine check or may be for some other fault stays on, get the car diagnosed. During test drive watch out for a few things like: engine noise, vibration, lack of power, or any other drive-ability issues. While driving the engine should be stable and smooth. Consider a long test drive to check for faults as short drive may not show all the faults. Always get the car checked by a qualified mechanic even if you find it OK.  

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