Common Turbocharger Problems and Malfunctions
Tips for motorists

Common Turbocharger Problems and Malfunctions

Many modern engines use


turbochargers to increase power and/or increase efficiency. turbo,


or a turbine-driven forced induction device that operates by supplying additional air to


your engine cylinders to increase power by burning more fuel


efficiently.

Although usually long


and reliable component, there are a few common turbo problems that can lead to


everything from reduced performance to engine destruction.

Signs of a bad turbo

Paying close attention to how


Your engine is running and performing regular maintenance and checks.


the smart way to stay up to date with engine maintenance and preventive care. Any


a noticeable change in engine performance or sound means something has changed


and needs to be investigated. If you notice signs of a turbocharger malfunction,


such as oil leak or sound change… it is very important to check this


As soon as possible. You should also be aware of normal boost pressure.


engine running at ... and investigate any significant pressure change or cause


check engine light (CEL) or malfunction indicator light (MIL).

Also follow


The following are indicators of common turbo problems:

– Acceleration reduction: s


the turbocharger is responsible for providing extra power to your engine, one


one of the easiest ways to recognize that they are failing is when you notice a lack of


acceleration both when exiting the straight line and over the entire speed range.

– Increased oil burning: bad


the turbo tends to burn (or leak) oil faster. Keep track of how often


you need to add more oil and watch for leaks and signs of blockage and


deposits.

– Smoke: Smell and sight


the smoke coming from the exhaust pipe tells a story... On first start


engine, white smoke is unburned fuel - until the engine warms up and the turbo


“at speed” is fine.

As the engine warms up, blue


smoke is never a good sign, blue smoke indicates the presence of engine oil (bad


rings, valve seals, or a serious turbo seal problem).

Black smoke is unburnt fuel.


this is in vain… this happens when there is not enough boost air to burn the fuel


completely - this may be a worn or faulty turbine, leaks or blockage


piping or intercooler/aftercooler.

– Excessive noise: unusual


noises coming from your engine are never good. But if you hear a loud whine


sound, this may be due to reduced air flow or lubrication of the turbo block.

Reasons for a common turbocharger


Refusals

Turbo problems caused


various factors such as lack of lubrication, oil contamination, use


going beyond standard specifications and regular wear. Following


Here are some common turbo problems and faults:

– Housing cracked and/or worn


seals allow air to escape and cause the turbocharger to work harder and wear out


down faster.

– Accumulation of carbon deposits


and contaminants passing through the system can damage the inside of the engine.


Components.

- Presence of foreign


objects such as dust or debris entering the turbine or compressor casing may


cause damage to the compressor impeller or nozzle assembly. (Some turbines spin more


than 300,000 rpm… at that speed it doesn’t take long to destroy a turbine or


compressor wheel.)

– Leaks in the air intake


the system puts more stress on the turbocharger as it works to compensate


lack of air.

– Blocked or partially blocked


diesel particulate filters prevent the free passage of exhaust gases through


systems causing various problems. The turbine rotates as a result


expansion of hot air from combustion…when that air is restricted, the turbo cannot


get optimal speed, so power is low and black smoke


present… in extreme cases, the side of the turbine (hot) can become


much hotter than designed and the seals become brittle and fail, resulting in


everything from leaks to possible engine overclocking that can overclock and


destroy yourself.

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