As a result of the normal operation of the internal combustion engine of the vehicle, it is extremely normal to produce exhaust gasses. This gas must be expelled from the exhaust. Accumulation of gas in the engine can cause serious problems. However, it is considered a problem when different products other than gas, such as water, come out of the exhaust. In some cases, since water is considered a by-product of normal operation, water coming out of the exhaust is usually not seen as a problem. Especially in cold weather, exhaust dripping is a very common situation. This dripping occurs as a result of water condensation.
The smell and taste of the water coming from the exhaust is very important. If the water has no odor or is tasteless, it indicates that there is no problem. However, if the water has a sugary odor and is sweet, it is an indication that coolant is coming from the exhaust. One of the things that drivers should check before renting a car is whether there is water coming from the exhaust.
Condensation of Water
Water coming out of the exhaust is usually caused by water condensation. When the engine starts, water and water vapor are formed immediately with the combustion that occurs. Only vapor comes out of the exhaust while driving. However, when the vehicle is parked, the water vapor condenses and becomes liquid. As a result of condensation, it is quite normal for the exhaust to throw water and does not indicate any problem in the vehicle.
Plunger or Piston Damage
If both water and black smoke come from the exhaust of the vehicle, it indicates damage to the pistons and the vehicle needs to be repaired. Water and gas discharged from the exhaust as a result of piston damage also have an odor. Failure to repair the damaged piston will also damage other components of the engine and engine performance will be significantly reduced. Subsequently, a considerable repair cost is incurred before the vehicle can operate normally again. For this reason, in case of black smoke and water coming from the exhaust, it should not be neglected to repair the vehicle as soon as possible before further damage occurs.
Cylinder Head Gasket
Water dripping and white smoke coming from the exhaust is an indication of damage to the cylinder head gasket. In such cases, the head gasket is leaking and the engine overheats as a result of this leakage. A cylinder head gasket problem is also known as engine flooding. Overheating of the engine components causes expansion and bending, causing the head gasket to dislodge. As a result, a leak occurs. The cylinder head gasket keeps the coolant in the engine, but the resulting leakage causes the engine to heat up more. It is important to fix the problem that occurs as a result of the cylinder head gasket leaking immediately. Otherwise, irreparable damage to the engine may occur. When the leaking gasket is replaced, the problem is eliminated.
Most of the time, water coming out of the catalytic converter is normal. The catalytic converter, located before the exhaust system, reduces the amount of vapor going into the vehicle’s exhaust. The converter reduces the negative impact of the vehicle on the environment. The converter ensures that gas that causes air pollution in nature is released less. It does this by converting toxic gas into harmless chemicals. These harmless chemicals are discharged from the vehicle in liquid or gas form. In short, water coming from the exhaust is an indication that the catalytic converter is working smoothly.
Breakdown of the EGR Cooler
Some new vehicles, especially those with diesel engines, are equipped with an EGR cooler to cool the exhaust gas. Coolant is used to cool the exhaust gas. If the EGR cooler fails, the coolant drips into the exhaust and is discharged as the liquid from the exhaust. The sugary-smelling liquid coming from the exhaust is coolant. In such cases, the amount of liquid in the engine cooling reservoir decreases. If the EGR cooler is repaired, the problem disappears.