Why a Car Engine Suddenly Blows Smoke

When your motor vehicle suddenly blows smoke there is NO need to panic. Why? Because as bad as it may seem it may not necessarily indicate that there is any real significant problem with you vehicle.


Smoke from your car engine usually occurs because it’s going to be worn. There’s an opportunity for a worn engine to blow smoke because oil leaks into the cylinders and around worn valve guides. Or, it might be due to worn oil rings and/or both.

The colors of exhaust smoke that would billow out from your car tailpipe:

*Black exhaust smoke. * Grey exhaust smoke. * White exhaust smoke.

Under these sorts of circumstances, white smoke are going to be produced. The method of blowing white smoke is oil burning. This is often totally different from fuel burning which produces black smoke.

Black smoke may be a rich fuel problem.

When you start your car after the engine has been at rest for hours you drag white smoke, and therefore the problem might be worn valve guides.


Here is what happens… when the motor car is at rest, oil that lies on the cylinder leads leaks into the engine cylinders. Since the engine is at rest, the oil sufficiently gathers and causes momentarily smoke as soon as the engine is again started.

There is NO need to get worried over this because as long as the smoking engine does not affect your cars spark plugs there is a good chance you will still pass emission tests. The only downside is you probably cannot use your car safety reasons and to avoid getting a fine for excessive smoke coming from your car.

Under these circumstances, it is probably best to take your automobile to a reputable mechanic to fix the problem.


Sometimes, the problem may be caused by other parts like the cars muffler. If this is the case you may only need to replace your muffler which is relatively inexpensive. It is a good idea to always get a professional opinion when it comes to checking out your automobile exhaust system.


Because there are many components which make up the entire exhaust system and while some are relatively inexpensive a few of the parts can cost you big dollars. Shop around for the very best price and check online for comparison costs.

Remember that it all depends on the make and model of your vehicle as to the actual cost and availability of the proper part(s) for your exhaust system.

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