Water dripping from an exhaust pipe immediately after starting the car is a perfectly normal reaction caused by the combustion in the engine. If water still drips from the tailpipe after the engine has been running for a few minutes, it may be the sign of a serious problem.Continue Reading
When a car is started, combustion takes place inside the engine. During this combustion, water and carbon dioxide combine forming condensation that is often seen dripping from a tailpipe, especially on cold days. In a well-running engine, as the engine heats up, the condensation stops. This usually only happens in the morning, but can occur anytime after the car has been parked for several hours and the engine has had a chance to cool off. On warm days, or in a warmed up engine, the water released by the engine's combustion is still there in the form of invisible water vapor.
Water dripping from the tailpipe long after the engine has been running may be the sign of a more serious condition, especially when there is smoke or the smell of burning oil present. If the car has a sweet smell, like the smell of antifreeze, this is a particularly worrisome condition. Any of these signs suggest a much larger problem and the engine should be looked at by a qualified mechanic.Learn more about Car Parts & Maintenance
There are a number of ways to make a vehicle's exhaust system sound louder, including adding exhaust tips, replacing the muffler with an aftermarket brand designed to amplify the sound and replacing the rubber mounts on the exhaust pipe with welded metal hangers. If done correctly, these modifications will make the exhaust system sound louder, but will not compromise its ability to safely exhaust engine gases.Full Answer >
The oxygen sensor is positioned inside in the exhaust pipe, and it is used to detect rich or lean mixtures. This sensor is an essential component in the emissions control system, and it transmits data to the engine's computer. The primary function of the oxygen sensor is to help the engine operate as smoothly as possible by detecting the appropriate air-to-fuel ratio and using fuel efficiently.Full Answer >
A smell of sulfur coming from a car's exhaust pipe is a good sign that there is a problem with the catalytic converter, according to Cars Direct. The smell, similar to rotten eggs, indicates that the sulfur present in gasoline is not being converted to odorless sulfur dioxide.Full Answer >
Black smoke from a car's exhaust is a sign that the engine is running too rich. The fuel is burning with incomplete combustion, and the black cloud includes the unburned carbon compounds. The NSW EPA says this is a sign the car is not properly maintained or poorly tuned. It is creating unnecessary air pollution and costing the driver more in fuel to operate.Full Answer >