The current fuel filter part number seems to be C2C35417 and most pictures show a part number of 6W93 9155 AA on the actual filter.

Here is the kicker though - the wrench required for 6W93 9155 AA seems to be 22mm and not the commonly mentioned 20mm.

At 3am, with no 22mm wrench handly ... it becomes a real aggravation. Fortunately, grabbing both pipe fittings with a 16mm open end, and a 5/8 fitting wrench proved that the fittings were on barely finger tight.

The aftermarket replacement had the expected 20mm ends.

And the gas didn't stop flowing after a cupful. Maybe others have meant that a cupful is lost in the time required to plug the line?

The replacement *should* have been done with the fuel pumps as requested. Of course, the shop dropped the ball on that one too. Completely in line with their sub-par standard of work.

The one that came out was completely clogged which means the *new* fuel pumps were being subjected to extra strain.

So ... is the fuel filter with 22mm ends a really old filter, or is it a newer style?

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I havent seen one (Chevy filter) with 7/8 (22mm) in a long time. Most of the time 13/16 and 5/8 (16mm) is all you need.

Well, that was the theory until the reality hit at 3am with no 22mm in hand.

Word! At our shop, we always install a new fuel filter when replacing a pump! Who needs warranty comebacks? I do enough work for free Glad to hear you changed it out no problem though!

On the gas coming out of the line, I have seen some that seem to drip endlessly from the line to the fuel rail, but it usually subsides at some point. I have had problems before on other vehicles that seem to start siphoning fuel from the tank and they wont stop running until you tilt the line upward to get it to stop flowing. Fun times

You would think it would be a mandatory replacement at the insistence of the shop. But, in this case, it was not suggested, it had to be requested, and it was still not done.

Letting the gas dribble until it feels like stopping is not a really good option lying on your back in a communal garage