Geneseo, New York
4561 Morganview Rd.
Geneseo, NY 14454
(585) 243-1201

3 Likely Reasons Your Car Is Blowing White Smoke April 5, 2019

Geneseo, Livingston
3 Likely Reasons Your Car Is Blowing White Smoke, Geneseo, New York

Your exhaust pipe serves an important purpose in releasing your engine’s emissions, but it should never release so much smoke that it becomes visible. If you see white smoke billowing out, it is indicative of a problem that needs attention. Here are a few of the most common reasons so you know what to expect when you take your car to the auto mechanic.

What Causes White Exhaust Smoke?

1. Internal Coolant Leak

Coolant may be leaking due to a crack in the engine block or a cracked cylinder head. When the coolant leaks out into the combustion chamber, it burns in the high heat, creating a white smoke that gets sent out through your exhaust. You may also notice a sweet smell coming in through your vents.

2. Bad Fuel Injector

engine repairThe fuel injector is meant to control the amount of fuel that enters the internal combustion chamber. When it is damaged or otherwise going bad, it may send in fuel in the wrong amounts or at the wrong time. This creates a thick white smoke and is more common with diesel than gasoline.

3. Oil Leak

 An internal oil leak will also create white smoke. When it leaks out into the fuel, it enters the combustion chamber and burns. Leaking oil is a serious concern, as when your engine is not properly lubricated and cleaned, the parts will rub on each other and wear down prematurely while overheating the engine. Your auto mechanic can fix this problem by replacing the offending piston rings or valve seals.


When you see white smoke coming out from your exhaust, the most important thing to do is see your auto mechanic right away. Continuing to drive with the underlying problem will only result in more serious and expensive problems down the line. M & R Automotive Service Center has been the trusted auto repair shop of Geneseo, NY, and the surrounding areas for more than 20 years. They’ll effectively diagnose the problem and provide long-term solutions. Check out their online testimonials to see what to expect, and call (585) 243-1201 to schedule an appointment with an auto mechanic.

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