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
2003silverado wrote:
So if lubricity IS the issue, what kind of damage could be done to the HPFP by dry cranking the engine, with no fuel in the HPFP to lubricate it? I know that it isn't good on any diesel to be dry cranked because the diesel is used to lubricate more than just the fuel pump, such as the cylinder walls. So do you think dry cranking could result in the destruction of the cp4.2?
For quite some time now, Diesel fuel pumps have been rigged up so it rarely runs dry (except for the brief time when filters are changed).
Think in the Ford, there is a shut off if the fuel level is too low, as measured by the fuel level sender in the tank.
Another shutoff is the pressure sensor on the pump itself.
