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Hybrids, XFE, & Active Fuel Management

GM's Hybrid Trucks & SUVs, thel saving XFE model, and the Active Fuel Management system for the 2007-2013 model years.

410 topics in this forum

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  1. Increase My Fuel Economy 1 2 3 4

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  2. Compatible rear axles

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  3. Question about afm 1 2

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  4. AFM disabler

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