Usually, white smoke indicates that the diesel fuel is not burning correctly. White smoke coming from the exhaust usually points to one point of failure: the injectors. Newer electronic diesel engines with common rail injectorssimultaneously match the speed of the turbo with the metered flow of diesel fuel into the cylinder. A small puff of smoke during quick acceleration is acceptable with older diesel engines due to a lag before the turbocharger’s air flow can match the increased volume of diesel fuel injected into the cylinders. Consistent smoke coming from the exhaust most likely indicates a deeper internal problem with the engine. This article will help diagnose the underlying causes of diesel engine smoke.Äiesel engine smoke comes in three colors: white, black and blue. If there is smoke coming from the exhaust it could indicate a more serious problem with the engine. Consequently, a proper running diesel engine should produce no visible smoke from the exhaust. After a short period of break-in hours under load, the blow-by problem should correct itself. In a new diesel engine the rings need time to seat properly and develop an air-tight seal. Correct pressure should be maintained in the cylinder chamber in order for proper combustion to occur. Blow-by is a condition where diesel fuel, air and vapor are pushed past the rings into the crankcase of the engine.
#WHITESMOKE 2012 CRACKED FULL#
A brand new diesel engine running at full load will experience a little bit of blow-by upon startup.