05-24-2016, 05:59 AM
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#22
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Drives: Kami, 2013 2SS LS3 Luvin
Join Date: Oct 2008
Location: Eufaula, Alabama
Posts: 6,427
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Quote:
Originally Posted by Elite Engineering
GM will replace the failed pump with the exact same one. For those that build engines, they can confirm most of this is from the lack of proper de-burring the pump during assembly from the supplier of them. Rare to see a Melling or a OEM pump that has been blueprinted have the bypass valve stick and a subsequent failure. This is for ALL LS based GM vehicles, truck versions, Corvettes, etc. And no, a proper catchcan system is impossible to be related to an issue like this that has been a problem with the LS engine since 1997 when the first LS1 was released.
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So do the new LT1 and LT4 use the same pumps? Probably.
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