possum wrote:We went through a bunch of PF48 and PF63's last year coming back leaking. We still get one here and there. GM issued a bulletin thru Service about tightening specs and instructions, but that didn't matter, we know how to install filters. They never admitted to a parts problem, but they did call back a batch of date codes on PF63's last month, but most of ours had already been installed. That means there was [i]something[i] wrong with them but we don't know what.
But like I said, this issue started with us at least a year ago.
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