Mar 25, 2023 · Looking into getting a 15 or newer GMC Sierra with a 5.3. I’ve heard that not all of them have AFM mode which is how I would prefer it. Wondering if this is true or if they all have …

Feb 16, 2025 · Hi there, This is my problem. My GMC truck came with two OEM key fobs. A couple weeks ago, the blade of one of them broke (came off the folding part). The OEM key …

Jul 18, 2010 · FOR SALE - Chautauqua, NY - iv got a 1973 harley davidson tx125 indueo that i would like to sell has no reg. would be good for parts or use as enduro bike n ...

Oct 29, 2016 · Anyone contemplating a 2007 or newer Chevrolet with the 5.3l V8 needs to Google any forums relating to their AFM "active fuel management" system. You will learn immediately …

Apr 26, 2016 · I was told a few days ago that the GT tuner from Bully dog has a feature on there to disable the active fuel management and makes the truck run on all 8's rather than switching …

Mar 23, 2012 · I poked around and didn't see this specifically asked anywhere. I have a brand new 2012 Silverado 1500 LTZ 5.3L .... I noticed my idling oil pressure drops to around 40 psi, …

Aug 15, 2013 · Looking at installing a cam, stall, lifters, springs, and a DOD delete done and was wondering a reasonable install price?

Oct 3, 2022 · I have a 2007 Silverado with 5.3 engine (LC9) and I have great compression in cylinders 1, 4, 6 and 7 (These are the AFM cylinders). I have NO compression in cylinders 2, …

Oct 18, 2022 · What cam did you get for the AFM/DOD delete? P219A/B is Fuel trim imbalance, and P0300 is Random miss. I’d say bad Tune on the truck. But my 08 Z71 LTZ crew cab was …

Mar 11, 2017 · The misfire is showing for cylinder 6, so I would go systematically and change the plug and recheck. If still showing the same code change the wire with an adjacent cylinder and …