▲ 4 r/GMT800
What could be causing this noise.
Just got this 2006 5.3 with 242,xxx miles, it makes this sound in idle and goes away when running. I just did an oil change and topped off the coolant reservoir.
I’m a novice mechanic, so I think I can fix the issue. just curious on thoughts of repair, should I plan a rebuild or run till she blows.
u/Alone-Cockroach2230 — 23 hours ago