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We just returned from Oregon, having been gone all week.
Shop reports nothing.
Friend who knows the GM went down and had a look. Said a few fine bits of metal were located in the HPFP. Inspected the tank and found just a few pieces as well. Assumptions being what they are, I suspect it let go somewhat catastrophically and appears to have only scattered a few bits of itself to the fuel system.
Obviously BMW says all parts must be replaced or no warranty. I have some toilet paper that has about the same efficacy as a warranty on replacement wear items, so I'm not too worried about that.
Forward/reverse flush is what I'm told, but I'll know more when I visit with the tech on completion.
The ongoing plan remains to replace the pump, run it as-is with the cleaned fuel system, and see how she is. Having a history with diesel trucks, I can't think of a rig, even in the common rail era, that would have complete fuel system replacements over a pump eviscerating itself. Not cost effective, nor would it be deemed necessary. Service Asst Mgr notes that the piezo injectors are apparently made with fairy dust and pot metal, and his impression is that anything less than a complete system replacement will grenade the injectors.
On that note, he also reports there are no places to bench test the injectors locally, and to send them out for testing approaches replacement cost. I'll be checking with our local Cummins regional service center to see if they have another opinion.
As of today, our foray into BMW vehicles may only last a couple months. She's unimpressed, and wants something reliable. I drive a VW Jetta TDI that's unbelievably consistent, and we never have a worry. Were hoping for something between that and our old Passat, but so far the BMW is really looking like a herring.
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10-01-2016, 11:56 PM
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