Smoke from engine block

Engine smoke is often times seen in vehicles with cracked engine blocks. In a gasoline engine, it can also be caused by oil leaking into the combustion chamber, and in a diesel engine , it can be caused by high levels of engine oil. If it continues after the engine is warm, a cracked engine block or cylinder head or a leaky head gasket may be letting coolant into the engine. You need professional help with this one. Smoke rarely comes from the engine bay , and if it does, the issue is typically critical already.

Blackish-gray or blue smoke coming out from under the hood is a strong indication that there is a crack in the block. This smoke occurs because the crack is allowing exhaust fumes to escape at the crack instead of being routed through the exhaust system. The symptoms of a cracked engine block include antifreeze in the oil or vice versa, engine smoke , engine overheating , seeing a visible crack in the engine block and blow engine compression. In most cases, when there is a crack in the engine block , the vehicle owner has to replace it.

Oil usually gets in through either a leaking intake valve seal or through worn piston rings. Cylinder misfire, loss of power or a loss of fuel economy may accompany any color exhaust smoke. Blue smoke comes from oil burning in the cylinders. Oil Smoke from Engine Oil smoke has a distinct smell, like an asphalt parking lot or roofing tar on a hot day. Neither oil smoke or poorly-burned fuel smoke dissipates, they hang in the air.

A thick combination of white, blue, and possibly brown is an indication of a blown head gasket or a cracked block or hea and is a combination of water, oil, antifreeze, and normal exhaust that are dumping out the tail pipe. Thick white smoke pouring from the exhaust is usually due to a crack in the cylinder hea engine block or head gasket. This is caused by constant temperature fluctuations and a consistently overheating engine due to low coolant levels. Smoke from an engine is normally caused by a severely cracked engine block. This is often a sign of a severe engine block crack or fracture, normally coinciding with severe engine performance issues in addition to visible smoke.

Visual Crack in Block. A routine visual vehicle inspection can sometimes be enough to fine a cracked engine block. A huge symptom of a cracked block is smoke coming out of the engine. If you let this go for too long, it will lead to other engine problems. The smoke is due to emissions fumes leaking through the crack instead of the exhaust system and out the tailpipe.

With this you will also likely experience a drastic loss of power when trying to accelerate. Seeing a Crack in the Block. If you truly need to confirm that you have a crack in the engine block , then just perform a visual. The reason why coolant usually leaks is because there could be a crack in the cylinder head or even engine block.

Even if the crack is small, the internal coolant can easily leak out and contaminate the oil of your engine. How Do Engine Blocks Crack? In areas where the temperatures stay hot during a good chunk of the year, engines can overheat easily.

Black smoke from exhaust petrol is not that common as that of diesel. If the white smoke is coming from the engine compartment, then you are leaking coolant from radiator, hose or gasket. Because of this, most show car owners will gladly spring for a custom paint job for their engine blocks in order to take their vehicle to the next level with the additional WOW factor that completes their overall presentation.