Why does my car have grey smoke coming from the exhaust?

Why does my car have grey smoke coming from the exhaust?

Like blue smoke, grey smoke could be a sign of excess oil burning somewhere in the engine, or if it’s a turbocharged car, the turbo needs attention. But there are other causes.

What causes blue smoke from a blown Turbo?

The definition of a blown turbo is one that has been completely damaged or one that has a broken oil seal. It doesn’t matter which issue you have, both situations will let oil into the engine. Once this happens, the engine will mix the fuel and oil and burn it. This will create blue smoke.

When does blue smoke come out of the exhaust?

You should always be aware of anytime your car makes a strange noise or if blue smoke starts coming out of your exhaust. Often blue smoke will be seen when you first start your engine in the morning. Pay attention to how your car acts when you first start it for the day.

What causes black smoke coming from a diesel engine?

Black smoke is the most common smoke color coming from a diesel engine and most likely indicates something is wrong during the combustion of the diesel fuel. When diagnosing the problem the first place to look at is the mixture of air and fuel flow into the cylinders.

What causes black smoke to come out of exhaust pipe?

White smoke or water vapor coming from the tailpipe, especially in the morning when the engine is cold. Black smoke or very dark smoke coming from the exhaust pipe. A new fuel odor or drop in MPG that seems to be coming from the exhaust pipe. The engine’s piston rings may be worn. The Fix: Replace piston rings. (This is generally not a DIY job)

Why is my Nissan Altima blowing white smoke?

I brought a brand new 2003 Nissan Altima 3.5 from Len Stoler Nissan. We noticed a light mist of smoke from the tile pipe in the summer time. I called to the dealer the dealer stated that was normal. The car started blowing light white smoke, the dealer stated change my gas to supreme octane.

Why does my Nissan club have blue smoke coming from the exhaust?

Pale blue smoke which appears briefly when starting up after being stopped for a light generally indicates faulty valve seals. This same color smoke appearing the whole time (or nearly the entire time) the engine is running generally indicates bad compression rings. You should see extra exhaust when you floor it.

Why is my car blowing black smoke when I accelerate?

There are several reasons why your car may be blowing black smoke from the exhaust when accelerating. One of them is from leaky fuel injector, faulty Oxygen sensor, or a MAF sensor or too much fuel pressure.

Posted In Q&A