2011 duramax and up fuel pump problems
I have read a lot about fuel pump problems on 2011 and up Chevy Duramax engines. I would like everyone that has a duramax of the these years to post mileage and whether they have had problems with th...
Forum Discussion
donn0128 wrote:
GM and Ford use or used the same lift pump from Bosch. Both were quite prone to failures due to contaminents in the fuel. Earlier CP3 I think was the designation did not have the problem. Incidentially I think that is what Ram is still using. At last I read while Ford was refusing to honoe warrenty on them GM was quietly taking care of the failures.
Ford and GM use the CP4, which as you stated are prone to major failures resulting in big $$. FCA uses the CP4 in the EcoDiesel, Nissan uses it in their new Cummins Titan and VW uses it in their cars as well. In the US I think the only engine that still uses the more reliable CP3 is the I6 Cummins.
There was a guy who just in the last few weeks who had his 4 or 5 year old Duramax CP4 blow up on him, but GM stepped up and covered most of it. You can probably find that thread with a search.
