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944 Forums >> 944 Blog >> "Fluttering" Under Load

Message started by OK-944 on Aug 13th, 2019 at 2:59pm

Title: Re: "Fluttering" Under Load
Post by OhioTom on Aug 16th, 2019 at 4:49pm
A low frequency hum that is muffled sounds like a drive line vibration of some kind.
Especially since it happens under load.
May have a CV joint in failure mode.
May have an exhaust hanger broken or similar.
May have a balance shaft out of time.

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