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Shlep

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Posts posted by Shlep

  1. Ok here's what I've got in the old notes. If you have sync, the indicates the PCM is seeing both the Cam and Crank sensors and timing is acceptable, however if you're mising FICM sync one would first assume you would be missing the signal between the PCM and the FICM. Now that maybe wrong but from what I can recall it's correct.

     

    Now when the fault occours, do you have a CMP_F pid reading a fault is present? If not I would venture to say the CMP signal is good and the PCM can see it. Also when the no start concern is present, can you see a cranking RPM?

     

    I realize you have no known test units handy but it sure would be helpful right about now.

  2. They should have pulled a motor off the assembly line and sent it no questions asked.

     

    All current model years got brand new motors in the past, this should be no exception.

     

    I would be ripshit if I got my $60k truck back with a dealer assembled engine with parts that were machined at a local shop. If it was 10 years later I wouldn't mind, but a brand new truck....I don't think so.

    I'm with Brad on that, I'd be pissed and wanting to know WTF is going on.

     

    I talked to the local engine plant dyno operator last night and as far as he's heard there hasn't been any failures of that sort on any of the dyno run engines and most have had about 25000 to 30000 miles of run time on them.

  3. Depending on how rough it's running it might set flag for loss of sync while doing a power balance test but it would have to be pretty extreme. Had a few harnesses with shielding damage cause it but they would loose Sync while testing. A noisey alternator could also be the culprit. Whats the MGP and Mass fuel desired doing when it looses power? VGT% and EBP?

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