2012 Volvo/Cummins ISX 485hp 5.5 fuel mileage

Discussion in 'Volvo Forum' started by UltraZero, Sep 6, 2016.

Page 2 of 2
  1. Sep 8, 2016 #11
    baha

    baha Road Train Member

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    CK. u/tube how to make your own intake leak ck. machine out of parts you can buy at supply store, after you fix leaks in intake air cooler or intake rubber tubes you can do overhead, next if still at 5 mi. per gal. now winter will be even less mpg so may as well work on getting it up to best mpg before cold weather fuel hits the pumps?
     
    baha, Sep 8, 2016
    baha, Sep 8, 2016
    #11
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  3. Sep 14, 2016 #12
    UltraZero

    UltraZero Medium Load Member

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    Charge air cooler test will be next, air filter cleaned recently, overhead will be done in a few weeks. I replaced my DOS injector. (long passive regen issues started, now gone)
    I will check for leaks in rubber hoses to see if there are leaks from turbo to intercooler/aftercooler/charge air cooler/ whatever the term is this week. Lol...

    Hmm. Thinking of an injector leak down test kit. Nice time to check teh injectors.
     
    UltraZero, Sep 14, 2016
    UltraZero, Sep 14, 2016
    #12
  4. Sep 16, 2016 #13
    UltraZero

    UltraZero Medium Load Member

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    yeah. I thought it could not get worse. I need to put up a sail and tack my way down the highway. Lol.
     
    UltraZero, Sep 16, 2016
    UltraZero, Sep 16, 2016
    #13
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