07 Yukon/Active fuel management

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swathdiver

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What benefit is it to disconnect it? Saw this discussion on here. I have an 05 Tahoe that sucks on gas mileage. Didn't know if it would help me. Thanks for your response, Geotrash.
Your 2005 does not have AFM.

Can you elaborate on your poor fuel economy? Is is all city driving? Is she lifted on 35s? What kind of tires?
 

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