all chevy's have that problem. I have replaced my fair share of them.
Four stroke diesel S.S.B.B. Suck Squeez Bang Blow
06 LBZ with 5 inch magnaflow exhaust,Bd exhaust manifold, Bully dog outlook, Fass 150, EFI by Rob, SC4 TC1056, transfer case brace, hid 8k on highs and lows
My iron is yellow
Current project-389 pete glider C-16 Stage 2.5 pdi injectors, stage 3 pdi cam, stage 1 tuning,stage 3 turbo, ending hp 850 to the ground!
Id rather be dead then CUMMINS RED!