WebWhen a vehicle is started, water is emitted in the form of a vapor. By the time the vapor hits the exhaust system it condenses, and becomes visible. This chain reaction is also the reason drivers see water dripping from the tailpipe. Seeing blue, black, gray or white smoke after a vehicle is warmed-up, could indicate a mechanical issue. Gray exhaust smoke is a bit of a mystery. Is it very light black smoke? Bluish-tinted white smoke? Unfortunately, because ‘gray’ is such a wide color band, it can be a minor variant of any of the other colors or its own thing entirely. Truly gray smoke is most frequently caused by burning transmission fluid. Checking … See more Blue smoke usually appears in the morning when your engine starts up for the first time of the day. Blue exhaust smoke indicates that your engine is burning oil. Though this is primarily a problem in older … See more Black smoke means that your engine is burning too much fuel. This particular problem does seem to affect diesel engines at a higher … See more Thin white smoke (especially on a chilly morning) is nothing to be concerned about. Thick white smoke, on the other hand, can indicate a … See more
Why Is Smoke Coming From My Exhaust? Updated 2024
WebDec 15, 2009 · My son drove the car to 0ver 300,000 miles before selling it. Even then it was only a minor puff each morning, and the comprssion test showed near new figures. If oil consumption increases, or the smoke gets more frequent, your car may not pass emission tests, if that is an issue where you live. WebHere are seven reasons you might be seeing smoke coming from your exhaust, and what to do about it. 1. You Are Experiencing Condensation. Let’s start with the best-case … ohh how
Blue smoke on start up - Maintenance/Repairs - Car Talk Community
WebJun 19, 2024 · Light or thin white exhaust smoke. Diagnosis: Normal. Light or thin white exhaust smoke is typically water vapor. You’ll notice it the first time you start your car, … WebMay 11, 2016 · This will often happen when the engine is still cold. Once the engine warms up and the humidity has evaporated from the exhaust system, the white smoke disappears. Generally, this is nothing to be … WebWhen your car sits outside, especially overnight, condensation can build up inside of the exhaust system. Starting your car will warm that condensation, turning it into steam. As … ohh hot tub