Odd vibration/rattle from engine (?) on incline in higher gear

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eddytheexpy

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Until I can get around to fixing it, would running in the 4WD in 4A help at all in keeping it from slightly engaging the IWE like this?

yeah, keeping it in 4A will do exactly that. 4A drops the vacuum, so you that sound shouldn't happen anymore if there is an issue with the IWE system.
 
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Baba Asheri

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yeah, keeping it in 4A will do exactly that. 4A drops the vacuum, so you that sound shouldn't happen anymore if there is an issue with the IWE system.
I took the Expy to my local auto shop. They ran tests on the IWE system and found no vacuum issues. Everything worked as it is supposed to. Is it still possible to have a leak or issue but still pass all the tests?
 
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