Sometimes, foreign objects such as dust particles, dirt, leaves and small stones can enter the turbo, either via the compressor inlet or turbine inlet. FOREIGN OBJECTS/DEPOSITSĪ turbocharger is essentially made of two fundamental components: the compressor at the front and the turbine at the back. Ultimately, it will reduce the efficiency and the boost delivered by the turbo.
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This problem is also known as over-speeding. As a result, the turbo has to work harder to increase air pressure. If the seals between the compressor and the engine become worn or cracked, oil will leak into the exhaust system.
It's important that the engine oil and oil filter are both replaced at the manufacturer's recommended intervals. This can cause abrasive damage to the inside of the turbo. A lack of oil (oil starvation), incorrect grade of oil or poor quality oil will lead to a build up of contaminants in the engine (oil contamination). In terms of the turbocharger, it needs a constant flow of clean, quality oil. It works to lubricate key moving parts, protect them from corrosion and keep them cool while in use. OIL/LUBRICATIONĮngine oil is essentially the life blood of your car. In fact, less than 1% of warranty inspections find a fault with the turbo itself instead, blown turbos are normally the result of problems with engine lubrication or the introduction of foreign objects.
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However, the check engine light doesn't solely indicate turbo failure - you will need a professional mechanic to perform further checks to diagnose the exact nature of the engine problem. The computer diagnostics on most modern cars are able to pick up turbo faults and the check engine light will appear on the dashboard to notify the driver.
If this symptom is caused by the turbocharger, you're more likely to see these discoloured fumes as the engine revs increase shortly after idling.
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This could be caused by a crack in the turbo housing or damaged internal seals. When oil leaks into the exhaust system, it produces a distinctive blue/grey smoke as it burns off. If you notice a whining from your engine, you should get a professional mechanic to have a look at your car. However, if you start to hear a loud, whining noise - a bit like a dentist's drill or police siren - it's a potential symptom of turbo failure.Īs the fault gets more serious, the noise will get worse. One of the unexpected advantages of a turbocharger is that it actually makes the engine quieter because it muffles the sound of air intake. Similarly, a turbocharged car that struggles to maintain high speeds or isn't able to reach speeds it once could may be experiencing turbo failure. If you notice that your car isn't accelerating as powerfully as it used to, or is slow to react to your input, this might be a sign that your turbo is failing. There are a number of signs you can look out for to tell if your turbocharger has blown: POWER LOSS
Typically, a turbocharger will be paired with cooling systems to cool the oil and hot air. Turbos run at incredibly high speeds (up to 250,000rpm) which means they operate under huge pressures and temperatures. The air pump then pushes extra air into the engine's cylinders, allowing them to burn more fuel per second, and produce more power than a normally-aspirated unit. Turbos add more air into the mixture by using the exhaust to spin an air pump (or compressor). In order for a car engine to produce power that drives the wheels, it combines fuel and air. For example, Ford have replaced their old 1.6-litre petrol engine with the new 1.0-litre turbo EcoBoost unit. It means they can provide smaller engines that produce the same power output while also increasing fuel efficiency. Turbos are commonly used to deliver the same level of power in smaller cars that's usually found in larger cars.Īlmost all manufacturers now offer a turbocharged model in their line-up. A turbocharger, also known as a turbo, is an additional system used by car manufacturers to boost engine power.
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