Fuel/Tank Gas Leak

FishinDVM · December 10, 2023

Hey guys... 2014 GMC Sierra SLT 1500 125K miles. I noticed a gas smell from the truck a few days ago. Crawled under and saw some drops of gas dripping from the bottom protective shield under the tank. Hooked a boroscope camera up to my phone, and on the top of the tank, found the leak. Seems to be dripping from where the high pressure line hooks up to the fuel assembly fitting (see pics). I've never needed to drop a tank, or replace any of these parts, so this will be round one.

My first question is, which is the easier/preferred access for those who have done it... dropping the tank, OR, lifting the bed off? I can have 3 guys come over and left or tilt the bed, so just wondering from those with experience, which way do you find easier? I don't have a lift, so if I'm dropping the tank, it would be all ground work in confined space, so I'm leaning with tilting the bed.

Next question, WHILE IM THERE, how deep would you go replacing parts? Everything fuel related is all original. I'll definitely need the assembly im guessing by how it looks, and the high pressure line, but I'm not sure how they attach? Is this a snap fitting? If so, is it a separate purchase or typically comes with the line or assembly? Would you also replace the charcoal canister if you were doing it? Thanks for the time... Chris

Edited December 10, 2023 by FishinDVM