Bought '09 E70, 3 weeks later catastrophic HPFP failure...

[Eric_S]

HPFP is in place as of yesterday.

Service tech attempted to fire the vehicle up, reports it was cranking but not firing, though it did sputter a few times. While cranking, he said it sounded like it was coming under load.

Asked further what was the issues noted, he states he pulled all the associated lines from the HPFP, back flushed the fuel line, back flushed the return, new fuel pump. Found some metal shavings in the fuel filter, which I would assume came from secondary cranking and some of the flushing procedures. Essentially we now know there are only shavings in the tank, making it a settling pond.

Had the tech pull the injectors (they charge $436 to remove injectors...), they're sitting on the SA's desk currently where I will pick them up tomorrow and take them to a local diesel truck shop and have them bench test, then rebuild as necessary. Hoping to keep the entire injector rack cost at about the price of a single new injector.

Waiting on SA to give me the prices of all high pressure fuel equipment, including the high pressure line to the rail, the common rail itself, the injector hard lines, and any other fiddly bits. Spoke with a fleet tech that takes care of DOT trucks, and he said he hasn't ever had success flushing high pressure metal lines, and has cost himself some extra injectors in the past, so I will probably replace those items as well. Obviously will price against indy and make it a little cheaper.

Will keep everyone abreast of what the injector rebuild situation turns out to be.

E