Q: Blue smoke black smoke white smoke what do they mean

asked by on August 29, 2016

Blueish smoke coming from muffler
My car has an automatic transmission.

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

Hello. If there is blueish smoke coming from the exhaust, then that is an indication that the engine is burning oil. This can come from the valve stem seals or from the piston rings. It can also come from the PCV system if it is not working correctly. If the vehicle is a 2015, then you may want to take it to the dealer if it is under warranty. I would also check the oil level is the oil have been changed recently. If the oil is overfilled, then this will occur. If you would rather not go to the dealer, a local expert from YourMechanic can come to your car’s location to diagnose the smoke and advise you on the repair.

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

Jerking and violent shaking when accelerating. Cvt engine, Nissan Murano 04

It is possible that you could be having an issue with your transmission. I would recommend having your transmission inspected by a qualified transmission specialist to determine the exact cause of this issue. The same as normal Transmissions and therefore...

2009 Nissan Murano has the P0420 trouble code. It says the normal bank 1 issue, but now it says short to VBAT. What is that and how to fix it?

Hi there. From the description you have provided, for your vehicle's P0420 trouble code. I suspect the O2 (Oxygen) sensor you replaced has created an additional concern for your vehicle. Either, the O2 sensor is incorrect by application or is...

How to change a fuel filter in a 2005 Nissan Quest?

Hi there. The fuel filter is part of the fuel pump, so if you are wanting to change the fuel filter, the fuel pump must be changed as well. The fuel pump is located in the fuel tank and the...

RPM increasing but car won't drive

What you are describing may be a result of a faulty speed sensor, potentially low transmission fluid or a even a faulty transmission control solenoid. As your vehicle travels down the road, the computer analyzes data being sent by vehicle...

Car won't go in drive or reverse what do i do

The first thing to check is to see if the shift cable is not broken or has a bad grommet end connector. Go to the shift linkage at the transmission first to see if cable is connected. If it is...

Is there any way to fold down the rear seats while remaining in the car versus going to the trunk and pulling the seat release in

Hello, thank you for writing in. We all have been in a position where getting out of the car was a hassle. Unfortunately this is one of those situations where there is not much you can do to avoid it....

Car won't start. Tries to turn over and the dies immediately

Hi There, A few different things will usually cause the car to start and then die. A bad ignition coil can cause this if it is beginning to fail, resulting in intermittent starting problems. A dirty or faulty mass air...

My car bogs down abit after a cold start and then accelerates fine after that

There are a number of things that may cause the car to hesitate when accelerating when cold such as low fuel pressure, a dirty or faulty mass air flow sensor, clogged or dirty fuel injectors, or potentially a bad oxygen...

I have an Altima that stopped accelerating. Battery light and brake light on?

If you have a battery light on then it is most likely the alternator not charging the battery. The brake light may be on since the ABS will not work if the battery voltage drops below 12 volts. You should...

Related articles

A Buyer’s Guide to the 2012 Nissan 370Z
Whether Whether you opt for the roadster or the coupe in the 2012 Nissan 370Z, you will be choosing a machine that will provide outstanding performance and a luxurious interior that you won’t be able to tear yourself away from....
Why Do Some Cars Have Really Smelly Exhaust Fumes?
Smelly car exhaust fumes mean that something is going wrong. It could be leaking fluids, a failing catalytic converter, or imbalanced air/fuel mix.
What Are the Dangers of a Vehicle With a Bad Exhaust System?
Your Your car’s exhaust plays a vital role in several different things. It affects engine performance. It reduces noise while driving. It also protects you from potentially lethal carbon monoxide fumes. If your car’s exhaust has seen better days, there...