20SS06

Hey guys,

Not sure I'm in the right section anyways I recently purchased a Fast LSXRT 102 mm intake along with the matching fuel rail for my 2011 GMC Sierra 5.3. First time I installed it everything was fine until I got home, that's when I noticed a strong smell of gasoline. I quickly shut the car off and after fiddling around noticed that the injector on the driver side, closest to the windshield was leaking. Long story short, I tried replacing the washers with smaller ones, it worked for a bit but leaked again, I tried a couple of different o-rings all led to the same result with the same injector leaking. However, in the end we removed the washers completely, lubed the o-rings pretty good and put everything back together. So far everything is going well. What do you guys think the problem is? Any input will be massively appreciated.

swift700

iTrader: (3)

You might have had too much rail height for the o-ring to o-ring length and the fuel pressure pushed the injector down, causing it to just come out of the bore at the top o-ring. Lowering the height of the rails might be what you need.