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Isuzu D-Max 2012: Why is my motor making a screeching noise?

Isuzu Isuzu Advice Isuzu D-Max Isuzu D-Max Advice Isuzu D-Max 2012
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Do you know what would be causing a high pitch screeching/whistle sound out of the motor on my 2012 Isuzu D-Max? I added EGR/Turbo Cleaner and a new tank of fuel. It has only done 43,000 km. The Isuzu dealer is no help.

I would suspect there’s a problem with the turbocharger, have a diesel mechanic check it for you.

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