Black liquid coming out of exhaust pipes can be a nightmare for anyone, especially beginners. Actually, this scenario can be stressful for anyone unaware of the reason behind this. But why this happens?
The black liquid is the fixation of carbon dioxide and water. After a few whiles of turning the engine off, it cools down. Thus, it helps the burn room in the cylinder to release all the gases. This is when you see the black water (water and carbon dioxide condensation) coming out of your exhaust pipe.
Studies say almost every vehicle’s exhaust system releases a small portion of black liquid. But if the amount seems immense, you need to find the fix to this issue.
No worries, we’ve you covered through this blog. Binge on till the end to know what to do!
Reasons Why Black Liquid Comes Out of an Exhaust Pipe
Many reasons can be linked to oil entering your car’s exhaust function. Eventually, the oil increases the fixation amount of water and carbon dioxide. So, let’s go through the most common reasons why this problem can appear.
Clogging in the Valve
We all know how vital valve ventilation is for balancing the combustion chamber. But clogging in this component can damage the entire ventilation system.
The oil doesn’t get a way out due to the clogged valves. As a result, the exhaust fills with more and more oil bit by bit.
Eventually, the chemical reactions make the exhaust pipe release the black liquid.
Wear on Valve Guides
Valve guides are responsible for keeping lubricating oil inside the valve lines. But over time, even valve guides can get worn out.
The damaged valve lines work like a way to the exhaust for the oil. In this case, you’ll see the oil coming out of the exhaust pipe as a black liquid.
Malfunction in Head Gaskets
Head gaskets are vividly involved in the vehicle’s exhaust function. So, it’s possible that the damages in them are responsible for the black liquid hassles.
Actually, the head gaskets prevent the fluid from entering the exhaust. However, damage to head gaskets will open the entrance.
Then the fluids go through reactions inside the channel and come out as black liquid through the pipe.
When Should You Be Concerned about the Black Liquid?
Although the amount of black liquid can tell about the potential dangers, it might miss this sometimes. But there may be something serious if you see these symptoms in your vehicle and a small amount of black liquid.
- Severe wearing or engine components frequent failures
- A sudden drop in speed
- Decreased engine performance
- Excessive fuel usage
- Extreme engine temperature
We aren’t asking you to take immediate action as soon as you notice any of these. But keep a close eye on the black liquid amount for the next few days.
How Can You Stop the Black Liquid from Coming Out of the Exhaust?
If you notice the black liquid in an inappropriate amount, we would tell you to follow the tips mentioned below.
Leakage Add-ons Are Lifesaving
Leakage is the worst problem found in most engine components. So, installing leakage add-ons would be the most brilliant idea. They’re designed to absorb the excess oil and fill up the gaps that let the oil out.
No Worn-Out Valve Guides
The flow of gases relies entirely on the valve guides. So, they must be fit and fine. If you discover any worn valve guides, replace them as soon as possible. It’s highly recommended that you consider calling a professional for this.
Replacement of the Clogged Valves
Replacing the clogged valves is mandatory. Clogging simply means excessive pressure on the engine. This is why black liquid comes out of the exhaust pipes.
However, the increased pressure can cause failures in many significant components of the vehicle. So, it’s important that you replace the clogged valves.
Frequently Asked Questions
Can the black liquid damage the engine?
No, black liquid from your engine doesn’t practically indicate threats to the engine. But if you find clogged valves behind the leakage, your engine might be in danger. However, replacing the valve can solve this issue right away.
Should I seal the exhaust pipe to stop the black liquid?
No, you can’t do this. Covering the exhaust pipe completely will leave your car overheating. Even the engine might get damaged and stop working. Most importantly, it’s normal that a small amount of black liquid comes out of the exhaust pipe.
Is it expensive to get leakage additives?
The price will vary depending on your car model, additives’ quality, and the range of leakage. It might cost you around $100 to $300. But if you don’t fix the leakages, the problems will cost you even more.
There’s nothing to worry about when you see the black liquid coming out of the exhaust pipe. And it doesn’t cause that much severe damage (unless it’s in huge amounts).
Plus, if you follow the tips mentioned above, the issue will be gone in no time. However, if the solutions seem complex, you can always call a professional to assist you. The tasks are very simple, so the whole process won’t cost you much.