ChevroletTough

p.s. i cleaned the bottom of the radiator tray.

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Got it swapped out. No more leaks. Sent from my iPhone using Tapatalk

Upon further inspection: It's not the o ring leaking. It's leaking coolant and not oil. The radiator is cracked. I ended up ordering a radiator last week. Shows up today. Going to swap it out. (bottom oil cooler line is going to be a PITA to reach).

I mean tons of people don't even look at what the package is rated and just pull. Obviously that # is there for a reason but I pull over it....

Replaced the o ring and it’s worse now. Going to test more but I might need a new radiator actually. Sent from my iPhone using Tapatalk

The line measurement Sent from my iPhone using Tapatalk

This is what I ordered. The ID appears to be close to what mine currently is Sent from my iPhone using Tapatalk

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Hey guys. Found my leak. This is the upper oil cooler line hose. This collared o ring is the problem. Ever seen one? This is on my 2000 K3500 7.4L Can’t seem to find one. Found an o ring that appears to be similar size hope that fixes my issue. Otherwise I’ll end up buying a new $17 cooler line. Sent from my iPhone using Tapatalk

Pulled again this weekend. No service lights or issues. Should be good to go! Sent from my iPhone using Tapatalk

Just an update: Haven't pulled anything heavy since. Might this weekend. But might take the 2004. Hot start issue remains, again betting injectors. Otherwise its running fantastic! Got 13.8mpg one tank all highway. Rest has been average. Really needed a tune up.

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Aaaaand they are in! Sent from my iPhone using Tapatalk