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.

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.

Was this answer helpful?
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

Get a quote

What others are asking

Reduced engine power.

Check the wiring to the throttle pedal position sensor on the gas pedal and see if there is a loose or broken wire in the pig tail. Fix any wires that are coming apart and wrap up the wiring with...

I think it has a blown head gasket I was wondering for now if Bar's Leak Block seal and head gasket repair would help til I could

Hey there, thanks for writing in about your 2001 Chevrolet Impala. The stop leak is only temporary and may not even work the first time. If you use too much or not as directed it may block the radiator and...

I notice that if DSC is ON and I go from a bumpy rough road to a Smooth Straight Road. I hear a "kum" "kum" sound from the rear.

DSC is your car's "Dynamic Stability Control" which is a form of traction control. Your car is equipped with sensors that monitor changes in the ride of the car which detect uneven surfaces or bumps in the road. These signals...

Related articles

Tips for Taking Care of Your Exhaust System
Your Your car’s exhaust system might not be the first thing you think about when it comes to engine performance or personal safety, but it should be pretty high on that list. Your engine combusts fuel and air in order...
Essential Things to Know About the 2017 Chevrolet Bolt Electric Car
The 2017 Chevrolet Bolt is the first all-electric car under $50k. The Chevy Bolt has a higher EPA rating than Tesla and gets 238 miles per charge.
How to Replace an Exhaust Air Supply Tube
The exhaust system depends on a fresh air supply to function properly. A bad exhaust air supply tube can lead to increased emissions or exhaust leaks.