Hey everyone. Ethan here. New diesel owner. I bought a 2004.5 lly silverado crew cab lt in the 2021. 318,000 miles. All stock. The first week I replaced the fuel pressure regulator and rebuilt the fuel filter housing and replaced the coolant temperature sensor and accidentally over tightened and cracked the thermostat housing. So, I’ve learned a lot about Diesel engines I. The last few weeks. I still have a leak, but even so, I really love this truck. Happy to be with the forum!