What the Color of your Exhaust Can Tell You

Have you ever been driving behind a vehicle and seen a different color of smoke coming from the exhaust? What does it mean when the smoke from the exhaust is visible or changes shades? Well, it could mean nothing. Or it could mean something is seriously wrong with your car and you need to have it checked out right away. So before your next trip goes up in smoke, here is what you need to know about car exhaust.

  1. Thin White Exhaust Smoke

This is normal, especially on cold days. Typically, it is just water vapor burning up and being expelled after condensation collects in your exhaust system. Usually you will see it when you first start your car. But it is also common if you are heavy on the gas pedal. It isn’t anything to worry about.

  1. Thick White Smoke

This is not normal. If it comes out in a persistent stream from the tailpipe, you might have a leaky head gasket. The coolant leaks and gets heated up in the combustion chamber. Then it gets burned and blown out the exhaust. In the summer, a coolant leak could be devastating and cause the engine to overheat. Heavy white or gray smoke could also mean you have a cracked cylinder head or block. These are serious issues you will want addressed by a professional right away. If you wait too long, the repairs could be extensive.

  1. Blue Exhaust Smoke

A darker blue or gray exhaust smoke typically indicates an oil leak. And you don’t want your engine burning oil! It could be a leaky valve seal or a worn cylinder wall. Also, if smoke occurs during acceleration, you might have a damaged piston ring. Any one of these could leak oil and you will want to have a professional technician check things out and provide auto repair.

  1. Black Exhaust Smoke

Typically, this color of smoke signifies that your car is burning too much gas. You might have a clogged air filter, causing the car to work harder than it needs to, compensating for the lack of oxygen. It could also be a malfunctioning fuel injector or a fault in the system. It might also be a blocked manifold and any number of other issues. Black smoke usually signifies poor performance. And while it typically doesn’t hurt your gas mileage, you will want to get your car in for auto repair in Holly, MI. A technician can check things out and find the reason why you have black smoke coming out of the exhaust.

Calling Holly Tire for Exhaust Problems

This information is geared towards gas engines, and may not apply if you drive a diesel. Please consult with a technician if you have any questions or concerns about the exhaust on your vehicle. To reach Holly Tire, call or visit our shop at 15140 N. Holly Rd. Holly, MI 48442. Our experts can evaluate and diagnose the issues, provide reliable repair, and get you back on the road in no time.

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Auto Repair