All Things Mk5 > How to Guides / Troubleshooting
Turbo Whistle... Possible Fault??
56OctyVRS:
Check the PCV valve as they can create a whistling noise and also lose you power when the check valves inside break.
Saint Steve:
--- Quote from: 56OctyVRS on May 14, 2011, 10:45:38 am ---Check the PCV valve as they can create a whistling noise and also lose you power when the check valves inside break.
--- End quote ---
Also hear a hissing sound after shutdown coming from under the top engine cover if the main diaphragm has blown.
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