What does Black smoke mean from exhaust?

What does Black smoke mean from exhaust?

If your exhaust pipe is emitting black smoke, it’s likely because the fuel/air mixture is too rich. There are a number of things that could cause a rich fuel/air ratio, including clogged fuel injectors, a dirty engine air filter, or the fuel-pressure regulator.

Why is my Mazda CX 7 blowing white smoke?

Allegedly, Mazda is aware of problem with design and doing nothing. At 45,000 miles my 2007 Mazda Cx-7 began blowing thick white smoke out from the exhaust and from under the hood. Took the car to dealer who said the turbo went out and was leaking oil into the exhaust system.

Are there any problems with the Mazda CX 7?

See all problems of the 2010 Mazda CX-7 . This Mazda Cx-7 is at a Mazda dealer’s service center right now getting the timing chain replaced, vvt issue corrected, a new turbo system to keep it from dumping tons of blue smoke from the exhaust, a/c system fixed, and there is an intermittent electrical issue as well.

How big is the turbo on a Mazda CX 7?

My 2007 CX-7 has roughly 160k on it. It smokes badly when you try to accelerate quickly (floor it). In the first year I had it, the dealer did all of the maintenance since I had the insurance coverage for maintenance. They replaced the turbo, motor mounts, A/C (twice), an various other parts.

Why does my car have black smoke coming from the tailpipe?

Engine deposits are another reason causing black smoke from tailpipe. When the engine is new, it will run fluently without any problems. But after a long period of use, the engine conditions get worse and worse and this consists of getting accumulations of combustion product in important areas like combustion chambers and injectors.

Why is my CX7 emitting smoke from both exhaust pipes?

This condition may be the result of insufficient crank case ventilation, resulting in oil leakage past the exhaust turbine shaft seal. Other possible causes (determined by reviewing the vehicle’s maintenance records) that should be corrected at the owner’s expense prior to performing this bulletin are:

Why is my Mazda CX 7 blowing black smoke?

(First the turbo which has been upgraded everytime I complain). When driving and giving a bit more acceleration, the car sometimes makes metal clanging noises along with blowing black smoke out the exhaust (the car sometimes has a flat spot feel to it at the time).

What does it mean when your car has blue smoke coming from the tailpipe?

Blue-gray or gray-white smoke. Blue-gray or gray-white smoke usually means the engine is burning oil. If you have a turbocharged engine, a faulty turbo seal could be causing this, but if you have a more common engine, it’s likely one or more of the following problems:

My 2007 CX-7 has roughly 160k on it. It smokes badly when you try to accelerate quickly (floor it). In the first year I had it, the dealer did all of the maintenance since I had the insurance coverage for maintenance. They replaced the turbo, motor mounts, A/C (twice), an various other parts.

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