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Message: <blockquote data-quote="2012Equinox2.4Turbo" data-source="post: 20898" data-attributes="member: 7598">At this point, you're better off fixing the problem yourself. Put in better aftermarket pistons and replace your timing chain with a Cloyes kit. You should see well over 300,000 miles on this engine, provided you maintain it properly. I ran my 2012 Equinox to 225k miles before I decided to pull the stock pistons. The engine isn't a terrible design; GM is simply terrible at fixing problems after the fact. This engine design has been around for a long time. There are many versions of this engine, ranging from 2.0L to 2.4L, dating back to early 2000. I've owned almost every variation of Ecotec. GM has already been sued for 'some' 2010–2013 models and settled. I say 'some' because somehow, they get to decide which vehicles 'qualify' for a repair? My 2012 Equinox did not qualify, so I was left to figure it out on my own. Supposedly, there were 'refinements' for later models, but let's be honest. GM didn't do squat to fix the problem, which was crappy piston rings to begin with.So how did I get 225k out of my Equinox 2.4? Seafoam and Marvel Mystery Oil. Prior to an oil change, and when the engine was about a quart low, I'd top it off with Marvel Mystery oil and drive for about a week. The night before I changed my oil, I'd pull the spark plugs, dump Seafoam down each cylinder, and let it soak overnight. The next day, I put the plugs back in, started it up, and let it run for a few minutes before performing the oil change. I did this every 30k miles or so, starting at around 85k miles when the engine first showed signs of excessive oil consumption. My 2.4 would always use about a quart between oil changes, so when it was down over a quart at 50% oil-life remaining, I knew come the next oil change it was time to do it again. You wouldn't believe how dirty the oil filter can get after this procedure.In response to your earlier post, where you mentioned rebuilding your Samurai, If you can do that, you can fix your Ecotec. It's actually a very easy engine to work on. You can replace the rings or change out the pistons while the engine is still in the vehicle. You will need to remove the head and pull the oil pan to unbolt the rods, but then you can push the pistons out of the top. In fact, that is how the book says to do it. You may as well do the engine timing chain assembly while you're at it, but I'd leave the water pump and chain assembly alone at that mileage. You can pull the timing cover off without removing the engine mount on the passenger side. Don't let any of the electrical connections scare you. It will only go back together one way. You can't even mix up the connections for the VVT solenoids. As far as the timing chain goes, there are 3 colored marks on the chain that correspond with marks on each cam and the crank. Once you put tension back on that chain, it won't jump. I've done so many that I can put a complete timing kit on in about 45 minutes. 20 minutes if I'm just doing the timing chain. Easy money.Do a Google search on Ecotec Build Book. You should see a Google Doc titled GM SPORT COMPACT Performance Build Book. While it doesn't cover these engines specifically, the procedure is still the same for the Ecotec engines it does cover. The LNF isn't much different aside from being a boosted 2.0L and having stronger internals.Good luck whatever you decide.</blockquote>

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