WebNov 4, 2024 · There's a trick to unlock these, Then turn the AFM off via Tuning Software which prevents the lifter from collapsing & getting stuck again. I wouldn't normally do this for a customer as it sets a bad precedent (They think you have a cheap hack for every issue). But this guy sends me a TON of electrical diagnostic & drivability work. WebJan 21, 2024 · In contrast, a hydraulic lifter is hollow, has an internal piston, spring, and allows oil to enter and exit. Similar in operation to the hydraulic piston of a tractor bucket, engine oil flows to the cavity in the hydraulic lifter. When the valve is closed the lifter is on the base circle of the cam (the round part of the lobe) and its cavity ...
How to Change 5.3l Lifters without removing heads - Tools BIble
WebJul 20, 2024 · Active Fuel Management LS engines have 4 cylinders that can deactivate. Dynamic Fuel Management LS engines, all 8 cylinders can deactivate, to run on 1 cylinder … WebApr 16, 2024 · The AFM lifters, because they're specifically designed for AFM and won't work with non-AFM lobes. AFM lifters have nearly 0.010 inch of movement before their inner mechanism locks,... howerd confessions
Why and How to Disable GM
WebOct 24, 2024 · How does it work? When engine load is low: The computer sends a signal to the LOMA. The LOMA solenoids open. Oil flows to the special lifters through the AFM … WebJan 29, 2013 · The dealership stated this is an unresolved issue with the 07-08 5.3l AFM engines. (I am surprised this information was disclosed). My Tahoe is used to commute my kids to daycare and to work. No towing, off-roading, or racing. Regular oil changes using full Mobil One Synthetic Oil. WebThe module will work on any GM Active Fuel Management (AFM) or Dynamic Fuel Management (DFM) equipped vehicle. It's not "locked" to a vehicle and you can move it between vehicles as needed. hideaway ocean suites lincoln city