A car owner faces one of the most appalling and worrisome situations – a car that blows white smoke from its exhaust. In most cases, white smoke emission from the exhaust suggests calling a best car mechanics in Perth for professional help. In this article, we will look at what causes a car to blow smoke out of the exhaust, how to tell that it is discharging the smoke, and how to rectify the problem to have a smooth and efficient vehicle.
What Does White Smoke From Car Exhaust Signify?
White exhaust smoke indicates something is missing from the engine or some parts. Many factors, including entering coolant or moisture into the combustion chamber, could cause white smoke. When a car blows white smoke from the exhaust pipe in an exhaust system, it is time to visit the car repair shop.
Depending on the shade, one can tell which issue is being reported. This car exhaust white smoke means fuel burns with coolants or water vapor. This is rather worrying because internal engine problems are present.
Causes of White Smoke From Car Exhaust
Such symptoms as white smoke from the exhaust indicate a coolant leakage into the engine combustion chamber. This can occur for several reasons, and the level of severity differs. The most common causes of car smoking white smoke include:
1. Head Gasket Failure
A head gasket is a critical part designed to make a seal between the engine block and cylinder head to avoid the passage of coolant, oil, and compressed air. Another sign that your car’s head gasket is on the way out is visible white smoking behind the car’s tailpipe due to the combustion of a mixture of coolant and oil inside the engine. This issue can lead to undesirable bearing damage and ring wear, leading to expensive repairs.
Head gasket fixing requires the replacement of the gasket as well as any components that are probably damaged during the leakage.
2. Cracked Cylinder Head Gasket
A leaky cylinder head gasket can also cause white smoke from a car’s exhaust without overheating. The cylinder head gasket is one of the most vital parts of the engine, and it acts to close the combustion chamber and ensure that the right amounts of coolant and oil pass through the proper channels within the engine. When the gasket is cracked or damaged, it permits coolant to enter the combustion chamber and emit white smoke.
Furthermore, the deterioration of a cylinder head gasket also results in interference between the coolant and oil, affecting the engine’s lubrication capability and efficiency. This is why it is essential to repair a cracked cylinder head gasket quickly to avoid further damage to the engine and ensure the vehicle runs safely again. Getting your car exhaust repair from a professional mechanic in Perth is the best choice to assess or repair a cracked cylinder head gasket.
3. Damaged Cylinder Head
Vibrations, over time or as a result of an accident, can affect a cylinder head so that it will be cracked or warped and considered a worn-out part. This may lead to a poor fit of the cylinder head to the engine block, leading to coolant seepage in the combustion chamber and white smoke from the exhaust. Anytime you see white smoke, you will need an expert to examine your car to establish whether a faulty cylinder head is to blame.
4. Coolant Reservoir Damage
The damaged coolant reservoir tank is also responsible for coolant leakage and oil contamination. It is almost impossible to have oil contamination when the reservoir tank is damaged. The tank is only affected by oil spills from the reservoir through the outer shell or wall.
Abrasion of the mentioned component can result in a car getting overheated. To check for loss of coolant, you can use a bleeder screw along with a compressor or a leak-down tester.
5. Low Coolant Level
White smoke from your rear bumper is often caused by either a blown head gasket or a faulty cylinder. Even if you get both parts to stop dripping and you notice the smoke again, then it might be a coolant leak elsewhere. Water or any coolant can drip through chafed or rusted hoses or even malfunctioning valves. It may also result from a faulty radiator or heater box. This coolant produces white smoke when it dribbles into the combustion chamber and ignites with fuel.
How To Diagnose White Smoke From The Car Exhaust?
You can use these pointers to determine what is causing your exhaust pipe to release smoke:
1. Visual Inspection
To diagnose coolant leaks:
- Begin by looking through the engine chest to see if there are some signs of a leak.
- Look at the radiator, the hoses, and the region around the head gasket.
- Find out if there are any white deposits on the surface of the coolant because they are a sign that the coolant has boiled due to heat.
2. Cylinder Head Replacement
If white smoke is due to a damaged cylinder head, it must be replaced. The actual process may differ depending on the type of car, and it is recommended that you look into the repair manual or consult professionals for a detailed procedure. This check ensures that the cylinder head is replaced correctly and that other problems cannot occur. Replacing a cylinder head is a complex task and should be avoided by anyone who has yet to learn what they are doing.
3. Engine Block Repair
A defective engine block is fixed with welding, brazing, cold metal stitching, or repair compounds. The procedural steps to ensure you fix the cracked engine block entail surface preparation, application of the repair material, and hardening.
Regular maintenance also helps avoid an engine block as it involves work that checks the diverse appliance components, solves possible problems, and does not wait for them to call for significant repair.
Conclusion
Hearing the sound of a car blowing white smoke, but no overheating is involved, is a sign that needs attention. There is always the risk of worsening the damage to the vehicle when it is identified; it has to be worked on and fixed on time. This way, you will discover what may lead to problems and take the necessary actions to protect the car and its functionality. This is true because regular maintenance and upkeep can also assist in stopping this problem from arising. If you have any questions or concerns regarding your car, call certified Car Mechanic Perth to check up on your vehicle to avoid futility.
Also Read: Car Exhaust Maintenance Tips: Everything You Should Know