2009 Silverado With Afm Engine Diagram. I would have rather paid for the gas than the engine. The afm lifter bores in these engines have a spec of 843 844 and the deactivation lifters require 22 psi of pressure to release the locking pins.
However they are only functional on engines that used afm. Gas furnace wiring diagram pdf show the circuit flow with its impression rather than a genuine representation. He brings it to a friend of his that builds race engines he used to work at gm dealers doing heavy line for whatever that is worth.
According to the mechanic the afm for the 53 liter engines has an oil consumption issue.
However they are only functional on engines that used afm. My 2009 silverado has the same naturally aspired 53 flex motor chevy is acting like this is a new problem. Look for the following. This guy puts in a non afm camshaft lifters.