Ford's answers to the NHTSA 6.7 Investigation
There was a request for a link to Ford's answer's to the NHTSA investigation posted on a previous thread, since closed. Here is the link: Ford's NHTSA Answers to the 6.7 investigation This PDF i...
Forum Discussion
NHIrish wrote:Engineer9860 wrote:
Found this on dieselplace.com: (apologies if it is a repost)
Delphi
I went through the LML (CP4 affected) section over there looking for doom, and gloom. Not much discussion on Duramax CP4 HPFP failures.
Looks like ricatic is a man of legend on the Chevy diesel forums as well. ;)
Old news...but it sure tells you why you better get yourself a good fuel additive, doesn't it. The bottom line seems to be that these fuel pumps are inappropriate for the US fuel market. You can decide for yourself if you read this statement and then the US and Euro fuel standards.
Stanadyne Performance Formula is the name I see popping up most often.
I think the general consensus is to stay away from any additive that dissolves the water droplets. The water needs to remain in a state that will allow the water separator to remove them from the fuel stream most effectively.
Also, guys with the LML Duramax are switching to a CAT 2 micron primary, and a 1 micron secondary fuel filter.
