Smoke from exhaust on startup

What would cause backfire and exhaust smoke? What causes white smoke from diesel exhaust? Why do some engines give out too much exhaust smoke? When it’s cold outside and you notice white smoke at startup , then you probably have nothing to worry about.

When the warm or hot exhaust gases meet cold outside air, condensation and steam is a result. After a short amount of driving, the white smoke should lessen. But if you get white smoke from exhaust at startup , it might be from these reasons: A cracked or warped cylinder head. What Makes Blue Smoke From Exhaust When Accelerating?

Stuck PVC Valve If you see blue smoke coming out of the exhaust , all the time, PCV Valve is the frist thing you should check. White smoke from the exhaust on startup When the white smoke comes out of your exhaust can help us to know what is causing the problem. If white smoke comes out when the ignition is started there are a few reasons. The first one is an internal problem which we will discuss further below. When I start my car for the first time every day, I have white smoke come out my exhaust usually for about a minute or two but it runs fine after that.

The first think you should check is your air-filter and other intake components like sensors, fuel injectors and the fuel-pressure. It happens because during startup any condensation that has formed in the engine over the night while your car is parked is steaming off and will exit on the tailpipe as white smoke. As the engine warms up after a few minutes, this white smoke will not be reduced because condensation is dissipated. Smoke coming from a motorcycle exhaust indicates the engine is not running correctly.

This is nothing but steam caused due to condensation. Typical problems include fuel not being completely burne too much oil or coolant evaporating. If ignore such problems can result in significant engine damage, and being able to identify the origin of the smoke , as quickly as. L EcoBoost engine may exhibit excessive white or blue smoke from the exhaust at start up after a cold soak. But if it never happened before and now suddenly you see it then maybe.

Check coolant level for. Some white exhaust smoke is normal, especially when you first start the car. Condensation can turn to vapor, providing what looks like white exhaust.

But excessive white smoke likely means coolant is leaking into the engine combustion chambers. As a car owner you expect something to come from the tailpipe. In most cases, smoke coming out of exhaust are usually due to condensation accumulated within the exhaust. The smoke produced for this reason will not have a direct impact, however, it’s important that you understand the meaning and why you may see white smoke from exhaust on startup.

You may commonly see white smoke coming from the exhaust on cooler days upon starting. It may also be that we have an air intake in the intake manifold or the flowmeter in poor condition. Bellowing smoke and just the normal start up smoke are two different things.

One looks like a cloud and the other dissipates quickly into the air. A diesel engine in good condition should produce no visible smoke from the exhaust , under most operating conditions. A short puff of smoke when an engine is accelerated under load may be acceptable, due to the lag before the turbocharger speed and air flow is able to match the volume of diesel injected into the cylinders. This creates a blue colored smoke which is passed down the exhaust system and then exits the car along with normal gases.

A blue smoke condition is typically present when the engine is under load and at first start up after sitting for a few hours. That is normal - water will condense in the exhaust system as a car cools down. Then when the car is started the water turns to steam from the hot exhaust.

In very cold temperatures, the heated exhaust can freeze into minute fuel droplets when exiting the exhaust and produce a more prolonged emission of white smoke for a very short period of driving time. If just at start up this could indicate moisture in the exhaust , this can happen when the engine is turned off and moisture forms in the exhaust through condensation from the air.