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Why is my Vauxhall Mokka's turbo not boosting?

I recently noticed that my Vauxhall Mokka's turbo seems to be lagging and not providing as much boost as before. What could be causing this and how can I fix it?

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Answers (3)

E

Hi Julia, there could be a few possible causes for this issue. One potential cause could be a malfunctioning wastegate, which controls the amount of boost the turbo provides. Another possibility could be a clogged air filter, which can restrict air flow and affect the performance of the turbo. I recommend bringing your car to a trusted mechanic for a diagnostic test to determine the exact cause and proper solution.

M

Hey Julia, have you recently noticed any unusual noises coming from your engine? A faulty diverter valve could also be causing your turbo to not boost properly. This valve redirects excess air from the turbo back to the intake system, but if it's stuck or broken, it could be causing your issue. I suggest having a mechanic inspect your turbo's diverter valve to see if it needs to be replaced.

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Hi Julia, another thing you can check is the boost pressure sensor. This sensor measures the pressure of the air entering the engine and sends that information to the engine control unit (ECU). If the sensor is faulty or dirty, it can affect the turbo's performance. You can try cleaning the sensor first, but if the issue persists, it may need to be replaced.