Dosser injector fitting

[Lead_sled]

I’ve been chasing a leak for a few days now. Didn’t know what it was or where it was coming from. Only thing I knew was passenger side, light weight fluid. Thought it was a diesel leak at first due to the fluid. Anyways, I was right, it’s a fuel leak and seems to be coming from the dosser injector fuel fitting.

Several questions. It appears to be a low pressure line due to the clamp fittings inline. I can’t see any leaks while idling.

How much pressure is on this line?

I put my wrench on the fitting and it’s loose.

Is the braided hose supposed to turn with the fitting or is it independent?


Now to introduce myself for being a new guy.

Just bought an ‘09 KW T660 with the Cummins ISX EM871, 10 speed. I’m a new owner operator and have been driving trucks casually for 4 years. Mechanically inclined on gas engines and smaller Diesel engines such as the TDI. Picked up the truck from my uncle who meticulously keeps his equipment. Engine has 400k on overhaul. New radiator, a/c compressor, ecm. Truck runs strong. As with anything used, I’m sure it’ll need some TLC.