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Message: <blockquote data-quote="blackmax100" data-source="post: 27164" data-attributes="member: 3655">60,000 mile 6 year update:I had to open the engine back up due to startup & run noise.Timing chain guide was broken, the black one that sits on the right hand side without the tensioner. There were a couple pieces missing so I went into the oil pan as well.Water pump was starting to drip, tackled that at the same time, also had a very minor head gasket coolant leak (External).Decided while I was doing this to pull the pistons and see how the oil rings looked, as last time they were plugged.We have been changing the oil every 6000 miles give or take, using Castrol Edge full synthetic high mileage with GM oil filters.The rings looked great, not even a hint of plugging, I checked all 4.Piston tops looked as they should, black with no build up, I did clean them up before reinstalling.Water pump was easy with the head and front cover off, did that all from the top.Valve seals took about 4 hours (My first time ever), they were easy.Timing chain had pushed into the cover a little bit, enough for me to notice but not enough to warrant replacing it.Project went off without too much difficulty, more tedious than hard.Vehicle now sounds great again, we live in Wisconsin, the Equinox is a 2011 and the body is starting to show its age.Hope to get 3~5 more years out of it.In short, the oil burning issue is due to oil changes not happening frequently enough.The timing chain issues the Ecotec's have seems to be more of a design problem than fresh oil issue IMHO.</blockquote>

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