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99 golf tdi smokes on startup, what causes that?

by Lafayette Legros Published 1 year ago Updated 1 year ago
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Water or coolant can cause white smoke from a diesel engine as well. This is a symptom of a bad problem. Your engine is getting coolant or water in the combustion chamber.

Full Answer

Why does my golf smoke when I start it?

When you fist start your vehicle (espescially in colder climates) white smoke is normal until the engine warms up. If it’s cold enough, it may never go all the way away. This white smoke is a natural part of the combustion process. Thick white smoke that looks “pillowy” is not something to be ignored. You know your Golf.

Why does my car smoke when running at idle?

As you start running the engine at idle (around 650 or 750 rpm), you will achieve a more effective compression ratio, and the smoke clears. White smoke has a lot to do with the temperature in the combustion chamber.

What does white smoke coming from my Volkswagen Golf exhaust mean?

The color of your exhaust can tell you a lot about the health of your Volkswagen Golf’s engine and emissions systems. When there is white smoke coming from the exhaust, it can mean a few things. It’s not necessarily anything to be concerned about.

What are the symptoms of a blown head gasket in Volkswagen Golf?

White smoke is often the most visible symptom of a blown head gasket. Here are some of the other symptoms of a blown head gasket in the Volkswagen Golf: If your engine is running rough, and billowing out white smoke, it very well could be either a blown head gasket, or a cracked head.

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Why does my TDI smoke when I start?

According to Zack Ellison at Cummins, "White smoke is an indication of unburned diesel fuel. Normally, it would happen at startup in cold weather with lower compression engines and retarded timing. You get an incomplete combustion during startup and it causes raw diesel fuel to come out of the stack."

What causes engine to smoke on startup?

Smoke often leaves car engines as a result of overheating. This can be caused by faulty wire casings, heated residues on the engine block and overheated liquids including oil, transmission fluid and brake fluid. There may also be a fault in your coolant system, or your engine may not have enough lubricant.

What causes grey smoke from a diesel engine?

Gray or black exhaust smoke in a diesel engine could be indicate several problems: Wrong grade of fuel used. Clogged air filter. Improper timing.

How do I stop my engine from smoking at startup?

2:415:36How To STOP a Car or Truck From SMOKING at STARTUP - YouTubeYouTubeStart of suggested clipEnd of suggested clipPut your cap back on shake it up dump that in your oil. Drive for about a hundred miles and you'llMorePut your cap back on shake it up dump that in your oil. Drive for about a hundred miles and you'll notice that the startup smoke will be gone hope this helps make sure you set your subscription.

How do I stop my diesel from smoking?

Change the Air Filter. The first thing you should do if you want to reduce black smoke from your diesel engine is to check the air filter and replace it if it's dirty. ... Replace or Clean the MAF Sensor. Another issue that could be affecting the air-fuel ratio is a bad MAF sensor. ... Use Diesel Additive. ... Inspect Fuel System.

Why does my car smoke on cold start?

White smoke from an exhaust When a cold engine is started, it soon begins to heat up, and a byproduct of this is water vapour. This creates condensation within the exhaust system, which then turns into steam as temperatures rise within the engine. Once a car has warmed up, this steam soon evaporates.

How do you fix grey smoke from exhaust?

To fix blue or gray smoke: The easy way is to add a bottle of Motor Honey Oil Treatment to your motor oil with each oil change. It's specially designed to reduce oil burning and stop smoky exhausts. The hard way is an engine overhaul, which is about a hundred times more expensive and a thousand times more work.

What does grey smoke mean?

Grey smoke can indicate that the fire is slowing down and running out of materials to burn.

What does white smoke from exhaust mean on a diesel?

White exhaust smoke is another common sign that the fuel filter might be clogged or damaged. Diesel fuel filters get clogged over time, although factors like excessive contaminants such as water and rust can shorten its service life.

Is it normal for a car to smoke on start up?

It may look like white smoke. That is normal just like how you breathe out on a cold day and it looks like you are smoking. If the smoke appears on a hot day, however, or every time you start the car then something is amiss. Give your car immediate attention to avoid costlier repairs.

What causes grey smoke from exhaust?

Blue/gray exhaust smoke means there's likely an oil leak and your engine is burning oil. Time to have a qualified technician check things out. The leak could be caused by several issues like leaking valve seals, damaged piston rings, or worn cylinder walls.

How do you stop white smoke from a diesel engine?

White smoke on a cold start, and then it disappears as the engine warms up. This is very common. It will often happen at startup in cold weather with lower compression engines. As you start running the engine at idle (around 650 or 750 rpm), you will achieve a more effective compression ratio, and the smoke clears.

What does it mean when your golf cart has white smoke?

A lot of white smoke typically indicates the following problems: Overheating Engine – The white smoke can indicate the engine is overheating. Check the temperature gauge.

What does it mean when you see white smoke coming from your exhaust?

When there is white smoke coming from the exhaust, it can mean a few things. It’s not necessarily anything to be concerned about. But, a LOT of it can be a sign of big trouble. We’ll cover all of the potential causes of the white smoke directly below.

What happens when a head gasket blows?

When the head gasket blows, it typically causes more than just white smoke. White smoke is often the most visible symptom of a blown head gasket. Here are some of the other symptoms of a blown head gasket in the Volkswagen Golf: Loss of engine coolant. Overheating engine.

What does it mean when your car is running rough?

Lack of engine power. If your engine is running rough, and billowing out white smoke, it very well could be either a blown head gasket, or a cracked head. It’s important not to ignore a potential blown head gasket.

What happens if you don't have a head gasket?

If you don’t have one there should be a warning light. If the engine is overheating currently, get it shut off as soon as safely possible. It’s only a matter of time before it cracks a head or blows a head gasket. Blown Head Gasket – Most of the time, when a head gasket blows, it’s because then engine has overheated.

Why does diesel smoke?

There are three main reasons for white smoke from a diesel engine. 1. Raw diesel fuel that passes through the exhaust completely unburned 2. Water/coolant entering the combustion chamber 3. The temperature in the combustion chamber is too low. YouTube.

What causes white smoke in diesel engines?

2. A thick cloud a white smoke. Red alert 🚨 This is the danger zone. Water or coolant can cause white smoke from diesel as well. This is a symptom of a bad problem. You are getting coolant or water in the combustion chamber, and If you know anything about compressing water, you know this is no going to end well.

What happens if you run an engine with water in the combustion chamber?

leaking Oil cooler (Through most of the time, the oil passes into the coolant) Remember, significant damage will occur if you run the engine with water in the combustion chamber. 3. Continuous “light” white smoke. To run correctly, a diesel engine needs precise timing of the injector pump and proper pressure.

Why does my car smoke white?

Remember, if you have an older engine with really low compression and bad timing or low injection pressure, you are more likely to have white smoke. 2. A thick cloud a white smoke.

How to test if fuel is white?

The best way to test the fuel is to pull the filter and empty the fuel from it into a clear glass or container. Wait a few minutes and see if there is any separation.

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