Q: Smoke coming out of exhaust

asked by on February 16, 2016

I have a blueish gray smoke coming out of the exhaust and I detect the odor of either gas or burning oil.

Smoke from engine or exhaust Inspection $79.99 - $89.99 Get a Quote

Hi, the blue tint you mentioned is in fact from oil burning. Over time the internal engine components, specifically the piston o-rings and the valves, wear out and oil starts seeping into the cylinders and burning with the air and fuel. A technician can diagnose the source of the smoke by testing these internal components to make sure they are sealing properly. Be sure to check your oil level frequently until this is resolved as more damage could occur as a result.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

Why does my car shake when I turn the a/c on?

Hi there. Shaking with the A/C on can be caused by a number of reasons. The a/c compressor puts a lot of strain on the engine because the compressor is similar to being a small engine itself. When the a/c...

Does the mass airflow sensor affect how your brakes work besides rough idling?

Hi, thanks for writing in. While the mass airflow sensor does not have anything to do with the brake system, it will definitely affect how the engine will run and can cause it to run rough or idle rough if...

Car keeps smoking

If oil is leaking from the turbo seals into the intake, then it may be time to replace the turbo. You could also have an internal engine problem with the cylinders, or piston rings. I recommend having a certified mechanic,...

Hello I just replaced the distributor in my 98 blazer. I set it to 6 o-clock like its suppose to, but it is running really rough.

Hi there. It is possible that the distributor was off by one tooth. This is very common. I suggest removing the distributor, then removing the valve cover to the side that has number 1 cylinder (the valve cover that is...

How do I turn on the windshield wipers?

The windshield wipers are a key safety feature that give you visibility when it is raining. The windshield wipers are controlled by the windshield wiper lever, which protrudes from the right side of the steering wheel. To turn on the...

wont shift into 3rd gear

At this age of the car, you will likely need a transmission rebuild. The bands that wrap abound the planetary gear assembly typically crack. Of course, checking the transmission fluid level and condition of the car while running in park...

What is the weight capacity for my vehicle?

It’s very important to never exceed the weight capacity for your vehicle. Otherwise, your car may not operate correctly and could be an extreme safety hazard. The vehicle weight capacity can be located on the Tire and Loading Information Label....

Clutch has no resistance

A clutch with low resistance or effort generally indicates a problem in the clutch hydraulic system. Not sure if this is related to the stalling issue, but it may be putting additional load on the engine when the vehicle is...

I have to hold the turn signal lever down

It sounds like the turn signal lever assembly needs to be replaced. The mechanism for holding the lever and returning it are inside of it may not serviceable, however, a certified technician should be able to inspect your turn signal...

Related articles

5 Red Flags That Your Car Needs Immediate Attention
It It isn’t popular to think about, but you should be prepared for vehicle problems. Vehicles are designed and built by people, and they are only as perfect or flawed as the people who build them. That means sooner or...
The Top 5 Selling Cars in Alabama in 2012
2012 2012 was a great year in Alabama for auto manufacturing, but that wasn’t the only bright spot. Vehicle sales in Alabama were also robust in 2012. Nothing much changed in terms of the vehicle types that were most popular...
How a Modern Engine Works
You You turn your key in the ignition, and the engine fires up. You press the gas and the car moves forward. You take the key out and the engine turns off. That’s how your engine works, right? It's a...