Think your M156 has a belt squeak? Watch this before you replace your belt.

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Added 1 year ago by MiAmigo

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If your m156 equipped AMG is making a belt squeak noise, pull the dipstick out to see if the PCV valve failed. When the PCV fails there’s full manifold vacuum being drawn on the crankcase. The vacuum’s so strong it can cause damage to gaskets. I’ve seen valve cover gaskets get sucked in, fuel trim fault codes, and all kind of weird drivability issues caused by the bad PCV valve.

Category: 722.9

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Think your M156 has a belt squeak? Watch this before you replace your belt.

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