I got a 2019 DD16 Western star.
Been noticing some rough starting. coughing and shaking, truck seems to wanna stall out But once it’s start it runs & idles fine. Batteries are good.
I did find that fuel low pressure side, the little filter with the ball for a check valve won’t hold the fuel in.
I can’t seem to find anything on it. I’m wondering if the rough starting is due to the fuel leaking out of that low pressure filter housing back into the tanks.