| By :
Terry S Vostor
Abnormal engine noises ( hisses, knocks ,rattles , clunks , popping) may indicate engine or automotive part wear or damages It can be said that fully if a mechanic pr your trusted set of mechanics at your local repair shop or dealership do not know how to properly and fully do a complete workup to diagnose, deal with and solve to fruition your engine, vehicle or mechanical problems then a great deal of cost, effort and time on all sides will be wasted. Coolant in engine and lubricating oils and fluids.
For example if engine oil has a white or "milky" appearance or appearances. Crankcase blowby that is engine combustion pressures blow past a gasoline engine's piston rings into the crankcase and out the "breather" - No doubt about it - our vehicles have become computer marvels. Imagine all the diagnostic modules , air bags, engine controls and diagnostics all working , interacting and working together to either give a diagnostician unknown conflicts and problems for no apparent reason what so ever. William S Simpson experienced Toronto based auto diagnostic consultant notes that if you think that the family of alcoholics have conflicts try working on a modern 2010 era vehicle with all of it different and varied exotic and complex electronics. In many cases diagnosis of automotive and vehicle problems in 2010 requires the most specialized tools and equipment available at great cost and costs only to your dealer or to larger or more specialized shops and not available at or to your local small time shop. In other cases it is simply a case of either thoroughness by the mechanic, sets of mechanics or just plain serendipity. As a simple example a worn or stretched timing chain can cause engine valves to open and close at the wrong time in relation to piston movement. Symptoms and signs of engine problems can include - excessive oil use and consumption - especially when blue smoke can be noted emanating from a vehicle's exhaust pipe or exhausts. Oil in the coolant is usually not an engine problem but is usually caused by a leak in the radiator ( transmission ) oil cooler. Engine oil leaks occur when gaskets harden and crack, when seals wear, when fasteners come loose, or ultimately there is part damage ( warped surfaces , cracked parts). To find oil leaks, clean the affected area on the outside of the engine. Then , trace the leak upward and upwards to the source itself. Oil will usually flow down and to the rear of the engine because of cooling fan action - transportation mechanics advise. A few common engine mechanical problems include leaking gaskets, worn piston rings, burned and leaking valves, loose or worn engine bearings , worn timing chains and damaged ( cracked , broken , scored ) engine parts. Coolant in oil will show up as a white or milky looking oil. It is caused by a mechanical problem that allows engine coolant to leak into the engine crankcase. There may be a cracked block or head, leaking head gasket, leaking intake manifold gasket ( V-type engines) or similar problems. Oil fouled spark plugs point to internal engine leakage into combustion chambers. They are also an indication that an engine has worn rings, worn or scored cylinder walls or bad valve seals. You will need to perform additional tests to find the true source of these problems. During engine inspection make sure to check the condition of oil and spark plugs. Check your engine oil dipstick for contaminants in oil. Secondly check spark plugs for oil fouling. This could well point to bad rings, cylinder walls or valve seals causing oil leakage into your auto, minivan or truck motor combustion chambers.
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