If your turbo is not producing the normal amount of boost, it's either due to an intake
leak or a problem with the turbo itself. Please check out our intake leak page for
more info; intake leaks will typically make a "whoosh" noise under boost. If the
turbo is hurt, little or not boost is the result; somtimes, a bad turbo will produce
screeching noises under boost. Under extreme turbo problems, the shaft and wheels
will seize and not spin at all, causing no boost noises.
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