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Peterbilt suspension dump problem

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by TortuousAugur, Oct 25, 2021.

Page 2 of 2
  1. Nov 1, 2021 #11
    TortuousAugur

    TortuousAugur Bobtail Member

    33
    4
    Sep 3, 2013
    Dallas, TX
    0
    Can you break these acronyms down Barney style for me?
     
    TortuousAugur, Nov 1, 2021
    TortuousAugur, Nov 1, 2021
    #11
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  3. Nov 1, 2021 #12
    Goodysnap

    Goodysnap Road Train Member

    3,502
    8,384
    Jul 12, 2017
    0
    20 PBC is a warrany campaign to update the CECU sofware level which can at times mess up the parameters in the controller if not completed correctly.

    CECU is Cab Electronic Control Unit

    ESA is Electronic Service Analyst otherwise known as the factory laptop program used to diagnose and repair CECU on Paccar products.
     
    Goodysnap, Nov 1, 2021
    Goodysnap, Nov 1, 2021
    #12
    TortuousAugur and Oxbow Thank this.
  4. Nov 1, 2021 #13
    TortuousAugur

    TortuousAugur Bobtail Member

    33
    4
    Sep 3, 2013
    Dallas, TX
    0
    Alright, thanks. Think the truck might have to go to the shop for a coolant over pressure issue which might be caused from exhaust in the coolant system. I'm hoping it's not a blown gasket or head issue but that's what the symptoms seem to point towards from what I've read on here and seen on YouTube. So I'll have them check this out along with the coolant pressure issue.

    Thanks again for all your help.
     
    TortuousAugur, Nov 1, 2021
    TortuousAugur, Nov 1, 2021
    #13
    Goodysnap Thanks this.
  5. Nov 1, 2021 #14
    Goodysnap

    Goodysnap Road Train Member

    3,502
    8,384
    Jul 12, 2017
    0
    The single piston Wabco air compressors on the MX13 EPA 17 engines have been prone to head gasket failures which also cause air/compression in the cooling system.
     
    Goodysnap, Nov 1, 2021
    Goodysnap, Nov 1, 2021
    #14
    Oxbow Thanks this.
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