Fixing Your Fuel System with a Bag of Parts CP3
If you're staring at a truck that just won't hold rail pressure, you've likely come across the term bag of parts cp3 while digging through some old diesel forum threads. It sounds a bit sketchy at first—like something someone would sell you out of the back of a van—but in the world of Duramax and Cummins engines, it's actually a pretty legendary DIY fix. It's one of those things that can either save you a massive headache and a couple of thousand dollars, or leave you frustrated on a Saturday afternoon with tiny springs bouncing across your garage floor. ...