Car smoking check engine light

Tailpipe Smoke – What Does The Color Of The Tailpipe Smoke Mean

However, you may notice white smoke under the hood and a strong, pungent—almost biting—scent. Open Today!

  1. Types of Smoke From Your Car Tailpipe & What It Indicates.
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Look for this link on your favorites: Save. Exhaust Smoke The first place where you may notice smoke is from the exhaust.

Related Check Engine Light Content

Oil Smoke from the Engine You may also notice smoke coming from the engine. Oil Smoke from the Filler Cap Oil smoke could also come from the filler cap, especially if the automobile is older. Contact Service Please don't hesitate to direct your service questions to us! Fill out the simple form below and our technicians will get back to you.

6 Symptoms That Spell Turbo Problems

Sign up using Facebook. The car drives but has some major issues. What could be the problem? As a result of the vehicle burning too much fuel, you may notice that your fuel economy decreases significantly. White smoke: Water condensation or antifreeze has mixed with the fuel supply.

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Engine light and tailpipe smoking

The oil lines to and from the turbo should also be replaced. A properly experienced mechanic will be able to take care of both. Regardless of the cause of this type of smoke, you should have the vehicle checked out by a qualified mechanic as soon as possible.

Because engines run inefficiently when cold, they use extra fuel at start-up to ensure a smooth idle and hesitation-free acceleration. Should the smoking persist, a clogged or dirty air filter is a likely culprit. On carbureted vehicles, the choke and choke linkage could also have a buildup of gum and varnish. If the filter checks out OK, a faulty sensor, a clogged fuel injector, or another intake-system component may be the cause. Because of the vast complexity of modern fuel-injected engines, your best bet may be to have the car checked out by a mechanic who specializes in these types of repairs. Unlike the wispy white vapor described above, billowing white smoke is usually an indication of serious engine trouble and warrants immediate attention. If you continue to drive the vehicle, the engine could overheat and suffer extensive damage.

Smoke of this sort is usually caused by the engine burning coolant and can be the result of a blown head gasket, a damaged cylinder head, or a cracked engine block. Such serious failures can mean a new engine or an engine rebuild, or even a new car entirely. The engine will run poorly in this state, with reduced power and very poor economy. The exhaust will have a slightly sweet smell if the exhaust contains coolant.

It could also have a burned oil smell if it contains transmission fluid.

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Check the coolant level and the transmission fluid level. If it does not, the head gasket is probably leaking and needs to be replaced. When only the transmission fluid level is low, add the required type of transmission fluid to bring it back up to the full mark.

Inspect the vacuum hose from the transmission for fluid inside. If it is passing fluid, replace the vacuum modulator valve on the transmission.

The causes of white tailpipe smoke can vary; however, it is common to see white exhaust smoke when first starting a car, especially on cooler days. This is generally steam caused by condensation.

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As the engine warms up and the condensation dissipates the white exhaust smoke steam is no longer seen. If excessive white exhaust smoke is present well after the engine warms up, it is necessary to have the car inspected for possible internal coolant leaks. Indicators of an internal coolant leak include billowing white exhaust smoke accompanied by a sweet odor or a low coolant reservoir level. An internal coolant leak can also contaminate the engine oil giving it a frothy, milky appearance.

Even small amounts of coolant entering the combustion chamber will produce white exhaust smoke. A cracked head may allow coolant to leak into one or more cylinders or into the combustion chamber of the engine. Dirty coolant, a poorly maintained cooling system, a low coolant level, or a non-functioning cooling fan can cause engine overheating. In addition, engine wear can eventually cause the gaskets to lose their capacity to seal properly allowing internal coolant loss.

Intake manifold gasket and head gasket failures are two of the most common sources of internal coolant loss. Checking for a low coolant level in the reservoir is the first step in determining if coolant loss is causing the white exhaust smoke. If the coolant reservoir is at the proper level but excessive white exhaust smoke is present, a cooling system pressure check is required to determine where, if any, coolant leaks are located. So, Having blue tailpipe smoke is bad news because it means the engine is burning oil. Usually smells like burned toast.