![]() ![]() Yay me! 45,000 miles, not even two years old yet and I need injectors. Well, I can tell you right now, the newer direct injected 5.3 (2015-2018) not only consumes oil, but is also known for fuel injector failures. I forgot who it was exactly but some famous engine builder said to do everything else but then use the AFM oil pump and not plug the passage and make sure you use the shield. Not that I value another opinion more than yours but it's different so I'm inclined to ask. You really stand by plugging the passage in the pan and using the lesser volume oil pump. I have two friends with pickups that don't take care of them like we do and they both got new engines from chevy.Ĭlinebarger, we spoke in the past about the parts to do a non AFM 5.3. My brother's 07 Tahoe ate a cam when an AFM lifter collapsed. Later this year, I'm going to teach my son how to build an engine so we're going to do a 5.3 with no afm and program it out of the computer. I use an AFM disabler, a catch can and I put the shield in the oil pan that prevents the excess oil from getting on the cylinder walls of 7 and 8. My 09 Suburban didn't use a lot of oil but it used some. I might do that motor medic trick and let it sit overnight. I'm going to change the plugs on it this coming weekend in preparation for a road trip at the end of the month. I'm not losing it externally so it has to be going past the rings. I have a catch can on there, but it hardly catches anything at all. My 2002 Tahoe LS 5.3L uses some oil, but not much. Here is Valvoline Premium Blue Restore link: file:///C:/Users/donje/AppData/Local/Packages/Microsoft.MicrosoftEdge_8wekyb3d8bbwe/TempState/Downloads/Valvoline%20Premium%20Blue%20Restore%20Oil%20(7).pdf The catch can catches only 1 oz/8k miles.įor non-mechanic types, Valvoline Premium Blue Restore may be just the ticket. ![]() I've since put 20k miles on it and now it consumes 1/2 qt every 8k miles. To unstick the rings I pulled all my spark plugs, soaked all the combustion chambers with Gunk Motor Medic for 48 hrs, moving a crank back and forth every once in a while with the harmonic balancer bolt. When doing my home work for this problem, I discovered GM TSB 10-06-01-008M for this problem. The original vc PCV baffling was a poor design that allowed a lot of oil to be sucked into the engine and burned, eventually sticking the rings. I soon learned that GM offered a new improved driver side valve cover. It was catching 1 oz of oil every 100 miles. It was consuming a lot of oil, so I installed a catch can in the PCV vacuum line between the valve cover and the intake manifold. I purchased a used 07 GMC Yukon Denali w/6.2L gasoline LS engine w/131k miles. Ï»¿Stuck rings is a common problem on many GM LS engines, mine included. ![]()
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