Quote:
Originally Posted by Scott@Bjorn3D
Well I had a another service center talk to GM about it. His response was it will be the same pump put back in. It sounds like GM has a real problem getting their engine blocks cleared of manufacturing debris. The statement was the pump design is fine, on some engines that had debris in then they will finally build up after getting stuck in the relief valve and it will fail. Hope fully all engine debris are now gone and the second pump should not fail.
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That would make sense, in my mind, if the pumps were failing early on... how does debris from a block assembly lead to oil pump failure 40-50-60k miles down the road? How many times has the oil recycled the oil filter and engine? I would imagine that a literal physical blockage from debris would rear its head a lot sooner than YEARs and tens of thousands of miles on dozens of oil changes down the road (or well I change every 3-5k)...
I am just thinking out loud as I too am nervous about things like this and literally have my ultragauge scan speed, fuel, and similar so I can just leave the oil temp and pressure screen on and up in the middle of the dash lol. I would love to figure out a way to prevent or stop this, but if what above is true, why would installing a Melling or similar be any better? Are they debris-proof or something? If the debris build up can happen over such a long time period of multiple starts and running events, would it not just eventually make any unit fail (if that were the case)?