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Thread: Duramax coolant flow diagram?

  1. #21
    Join Date
    Mar 2000
    Location
    Loyal WI US
    Posts
    10,792

    Default

    Quote Originally Posted by More Power View Post
    To solve an LLY overheating problem, I recommend owners upgrade the fan, fan-clutch, fan shroud and radiator to that used by the 2006/7 LBZ. All of these OEM items are larger than that used on the LLY.

    Jim
    And stay away from "surefire" fixes from relatively obscure sources without a KNOWN track record.
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  2. #22
    Join Date
    Aug 2012
    Location
    Friendswood, TX, USA
    Posts
    2

    Default Diagram of cooling system

    Parts website called GM Parts Giant.com has good diagrams to go with parts lists. I have the 5 volume Helm manual for my 04 and this is a heck of a lot easier way to familiarize yourself with the layout of a system. The manual is apparently for troubleshooting flow charts, torque values, and repair procedures and I have a hard time finding good overviews with diagrams.

    http://www.genmotorinfo.com/Picture....100208TC00-644

    Heres the link to the parts list....clicking the Get Info button brings up the diagrams....

    http://www.gmpartsgiant.com/Page_Pro...&SubModel=2500 HD 2WD - New Style&mCode=TC25753&eCode=LB7&tCode=M74&RPO=Z88&ma jorIndexID=00&SupplGroup=80&minorIndexID=TC00-644&SortKey=113

    Dont know why the whole URL is not copying as hyperlink, but you need all of the above string ending in 113....

    Or just go back to the homepage and click on your vehicle, year, model, etc.

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