2010 m8 4000-5500 hesitation

07dragon · Dec 19, 2017

Like stated, my 2010 has an annoying hesitation from 4000 to 5500 ish. Once get over 5500 she rips smooth and very good power. Noticed when engine is cold the track won't even move the sled till you get closer to the 5k-5500 rpm mark and out of the hesitation. Anyone notice anything similar?

Betterview · Dec 19, 2017

Tighten your belt deflection until the sled wants to creep at idle. Could be the belt is to worn, If it does not stand above the driven when stopped it needs replacement.

07dragon · Dec 19, 2017

Thanks for the suggestion. I've been reading around and was going to mention a couple things.
1. Doesn't use much oil so I'm thinking a stuck oil pump is not an issue.
2. My buddy was adjusting belt deflection on his 06 m7, so I glanced at mine and I have ALOT of deflection in the belt. I'll adjust it and try it out!

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2010 m8 4000-5500 hesitation

07dragon

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Betterview

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07dragon

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