Originally Posted by rc82bttb
My 2013 duramax had the injection pump come a part internally 2 times in 120,000 miles. First time under warranty second time cost me $11,000 to fix. I’d do some research on model years with the Bosch cp4 injection pump and steer clear of them! It is a known problem that Chevy was happy to not own up to. Reason this life long Chevy guy bought a Cummins and I’ve been very happy I did.


What year Ram? I believe 2019 and up rams use the same CP4 pump that Chevy and Ford do.