When the fifth-generation Ram HD pickup debuted for the 2019 model year, it brought with it a raft of updates, including a revamped Cummins 6.7-liter inline-six diesel engine offering the Ram a ...
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CP4 pump failures draining diesel owners’ wallets
What’s failing: The CP4 pump’s roller‑tappet design struggles with low‑lubricity U.S. diesel fuel, leading to internal wear and metal debris contamination. Who’s affected: GM Duramax (2011–2016), Ford ...
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