2007 Tahoe equipped with a Vortec 5.3L V8 SFI Flex-Fuel engine with Active Fuel Management. One owner, 61k miles. Is this one of the 5.3’s to avoid?
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It’s an absolute crapshoot. My 2007 5.3 was AFM’d at 289,000k, although I’ve heard that they go considerably sooner.
On the other hand, I enjoyed the vehicle enough to install a non-AFM replacement engine, which remains my everyday driving to this day.
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From my understanding, I could just delete the AFM if the vehicle isn’t having any issues yet?