No issues on this Yukon. I bought this Yukon 2 weeks ago with only 89K miles and it still had the original factory filter. Figured it was about time the filter was changed.... (since the pump has to work harder to push through a restriction...) on my old trucks I have an in-line fuel pressure gauge going to the carburetor so I can always keep an eye on the fuel pressure which was roughly indicative of the health of the filter and pump.... If there is a known mod on the GMT800 vehicles to install a fuel pressure gauge I'd love to install one...