CP3 in Ram verses CP4 in Ford and GM
Is there someone that could possible explain the difference in the cp3 system that is in a Ram verses the cp4 system that is in a Ford? The high pressure Fuel Pump, is it just a brand difference or an...
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Both are made by Bosch. CP4 failures as stated above are huge repairs and it just takes a little bit of water. Based on what I have read in various forums, when the trucks are still under factory warranty, GM has covered these repairs and Ford generally does not. I am glad my out of warranty 6.7 Cummins has CP3. Hope this helps.
