Changing the fuel filter
hmm thats probably the wrong filter
what year is your car? the 99 C5 has a return-less fuel delivery, and im pretty sure the filter has one entry and one exit, other C5 like the 97-98 and 01-04 came with a return fuel delivery system.

http://www.cajundude.com/fuelfilter.htm
It sounds like toy have the fuel system with the return built into the fuel filter like my 2001. The only store besides GM I know that carries these filters is O'rielly auto and they are around 50-60 dollars.
Dealers are aweful proud of them, aren't they!
RT
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As I have read on here before.......sometimes after ~10 years the o-rings on GMs stupid plastic fuel connectors leak, I could see that was my issue on the outlet side of the fuel filter. When I had the drivelline out I said, "If it ain't broke, don't fix it"...not leak and it looked good, I didn't touch it... Well........oh,well
Its a PITA to get to with 3" exhaust.....
Jacked it up, dropped the rear sway bar,took off the DS exhaust cat-back and over axle piping...

The inlet side has a green rag in it, the outlet a clear plug you can just see to the left of the shield bolt.......

I didn't think a 97' fuel filter would be hard to find............NAPA was the only one, so I put it on for $14.95. No bracket, but I think between the heat and vibration of mouting to the frame.......that makes them leak.

Put in on, started it with one open exhaust
...no leaks.All back together and seems fine.
I will take the leak today though................sure beats a leak at the track :thumbs:
I had the questions after I posted the picture.....:
"Is the NAPA made of metal? It doesn't look like the one end has a plastic lock fitting, what gives?"
That is why I posted the pic...........the bell end has 4 rotating metal clips that grab the inline clip that stays on the outlet fuel line side.It was a damn tight fit to, but I will take that over a loose one and a leak again:crazy:


