Filter did not cure problem. Also found that the first replacement filter was NOT a Wix, but a Mann. Second replacement is Mercedes.

Many of you knew this, but for those of us that did not the XFire filter is a combination fuel filter, fuel pressure regulator and has a check valve - all in that aluminum can. I just find it very odd that this problem occurred when the original filter was changed.

Going into this further, Photo 2375_LI is of my car with the new MB filter/regulator installed. Note red circle that has a metal canister installed inline with the fuel line going to the fuel rail. What is that? The second photo is a XFire fuel system schematic which does not show this thing. The third one shows the can but does not identify it. Looking at it, there is only a hose in and hose out with that dome shape can making me think there is some sort of diaphragm in it. Pressure pulse dampener??? Beyond that I got nothing.

Anyway, in the trouble shooting bit it says long cranking is likely due to a loss of pressure which can be for a variety of reasons, leaky injector, leaky check valve in pump, leaks in fuel lines or leaky check valve in fuel filter/regulator. so obvious next step is to check fuel pressure. For that I am waiting on Snap On truck this morning to get adapter for XFire fuel rail test port or will try the suggested a/c hose. A/C hose fits on rail but other end doesn't fit my tester so would have to modify it a bit.

Really hate it when I create problems for myself.

HP