Q&A

Why do you have to idle a turbo before turning off?

Why do you have to idle a turbo before turning off?

Idling the engine even for 30 seconds before turning off engine allows the cooler idle exhaust and cooler idle oil to bring the temps down in the turbo enough to increase the life of the oil.

How long should I let my turbo car idle before turning it off?

Drive your car gently for the last minute or two of the drive, or let the car idle afterwards for at least 60 seconds. By letting it run. the oil will continue to circulate and cool down the turbo. One of the main reasons your turbo will die is because of oil “coking”.

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Why do you need to let a turbo cool down?

Turbocharged engines do need to cool down before they are turned off. Switching off when the engine is very hot stops the circulation of oil. The layer of oil around the turbocharger bearings stop flowing and literally gets “burnt”.

At what RPM is turbo activated?

From 1-2,400 rpm, the primary turbocharger is activated; at 2,400-2,800 rpm, the second turbocharger is activated; and beyond 2,800 rpm, both turbochargers function. This system is recommended for diesel engines with displacements of 2.0 liters and above, and V engines.

Are turbo timers necessary?

It all depends on your car and how you drive it. But if you’re one of the many who simply use their car to get to work and back, you don’t need a turbo timer. Most regular drivers will never drive their cars hard enough to require such a device. Especially when they talk about carbon deposits and a failed turbocharger.

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Should a turbo whistle?

When should you be concerned? All turbochargers make some amount of noise – and most people don’t even notice it. However, if the whistling sound gets louder, more noticeable, or changes in any way, it could be symptomatic of a number of different problems, that all warrant further investigation.

Does turbo need timer?

What happens to the turbocharger when the engine stops?

When the engine starts, the turbocharger doesn’t have the power (No exhaust emission at the instant) and hence, manufacturers advise the idle run for 1-2 minutes (depending on the power). In the same way, when the engine stops,the power supply stops. But, due to the extra force of exhaust gases (at the instant), turbo

Why does my car idle for 30 seconds before turning off?

Idling the engine even for 30 seconds before turning off engine allows the cooler idle exhaust and cooler idle oil to bring the temps down in the turbo enough to increase the life of the oil. This is also one of the reasons many people specify full synthetic oil.

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Why is my turbo running so hot when idle?

The turbo is lubricated by the oil and runs extremely hot. When you are driving (above idle) the turbo runs hotter than it does at idle. The very minute amount of oil that remains inside the turbo bearings after shutdown effectively gets cooked since it is no longer circulating to and from the oil supply.

How long should I let my Turbo idle after stopping?

If you’ve taken a mid-way stop during a hard highway drive, it wouldn’t hurt to let the turbo idle for an extra minute. The holy grail of reliability – Toyota – recommends up to 2 minutes of idling after continuously driving at 100 kph, as does Skoda for the Laura.