Warning Signs of a Cracked Engine Block


Engine blocks are cast from durable metal and hold the combustion chambers and other interior parts of the engine. A cracked engine block is a rare occurrence, but it can happen for numerous reasons. If the engine block does does suffer a crack the vehicle will most likely need to have the engine replaced in order to be safely driveable once again. A cracked engine block offers several signs of trouble, so if you notice any of these symptoms of this ailment you'll want to reach out to your local auto repair shop that is capable of completing engine replacements.

Engine Smoke from Under the Hood

Any smoke coming from under the hood means that there's definitely some sort of problem. If the smoke is black or dark gray it likely indicates a crack in the block. This smoke occurs due to the crack allowing emissions fumes to leak through the crack instead of taking its usual route to the tailpipe. The smoke will likely be accompanied by major performance problems as well, such as a lack of power or a rough idle.

Constant Overheating

A crack in the engine block can cause antifreeze to leak from it, which puts your car at risk of overheating due to the lack of coolant. The most common sign of overheating is a rising temperature gauge and white smoke coming from under the hood.

Antifreeze and Oil Mixing

When an oil change or coolant flush is completed it is important that the technician take note of the color of the liquid being removed to ensure they look as they should. If antifreeze and oil are mixing it will appear as a cloudy white fluid. This is a positive sign of a crack in the engine block between the passages that oil and coolant flow through.

Poor Engine Performance

Likely the most obvious sign of a cracked engine block is a significant decrease in engine power. If the block cracks there will likely be issues with low engine compression, thus resulting in a lack of combustion pressure. Overall there will be cause for concern due to the rough idle and major decrease in fuel efficiency that this issue will produce.

Automotive engines are highly engineered to operate with ease and little maintenance, but as they age and tire or are neglected of general maintenance they may develop major problems. If you believe you have a cracked engine block in Covina come talk to the certified mechanics at Hye Tech Auto. We will be able to provide you all of your options based on the damage that your vehicle has suffered, including engine replacement or rebuild. We offer extensive auto maintenance and repair services for all makes and models of vehicles. Give us a call today at (626) 332-5452 to request an appointment for professional auto repair in Covina!


Hye Tech Auto Blog

Written & Published By MORBiZ



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