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What should these gauges be showing?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Bigrigmayo93, Apr 10, 2018.

  1. Apr 10, 2018 #1
    Bigrigmayo93

    Bigrigmayo93 Light Load Member

    132
    76
    Nov 28, 2016
    Chicago Illinois
    0
    Stock 03 kw w900 c15 mbn.

    Just wondering what the gauges should be showing to make sure everything is running right.

    -Engine oil.
    -Fwd rear axle oil. I believe mine is broken because it hasn’t moved.
    -Rear real axle oil. Mine gets to 100-120
    -Fuel filter. When idling, it’s about 3. Then 6-7 when driving. & that’s after putting new filters.
    -Air filter. Mine hasn’t moved..
     
    Bigrigmayo93, Apr 10, 2018
    Bigrigmayo93, Apr 10, 2018
    #1
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  3. Apr 10, 2018 #2
    ClineER

    ClineER Light Load Member

    229
    139
    Apr 27, 2016
    N.E. Oklahoma
    0
    Engine oil, most run 200 to 220, ok up to 250 on a hard pull
    Axle, cooler weather sometimes they dont move, again ok up to 250, but hard to get that warm
    Fuel filter reading sounds normal, i want to say the change filter spec is 12in of vacuum.
    Air filter when new maybe be 1or 2, i change mine when it gets to 10in of vacuum. If your in dirty conditions you can go up to 20 in (like concrete trucks) check the hose if gauge doesn't move, i have worked on lots of trucks with the hose broke in 2 and driver never noticed.
     
    ClineER, Apr 10, 2018
    ClineER, Apr 10, 2018
    #2
    Bigrigmayo93 Thanks this.
  4. Apr 10, 2018 #3
    Bigrigmayo93

    Bigrigmayo93 Light Load Member

    132
    76
    Nov 28, 2016
    Chicago Illinois
    0
    Appreciate it!
    I took apart the dash to check the air filter wiring but it still didn’t move. It’s at 0. I know the filters are newer but I want to make sure the gauge is working before changing them. I will have to look into it.
     
    Bigrigmayo93, Apr 10, 2018
    Bigrigmayo93, Apr 10, 2018
    #3
  5. Apr 10, 2018 #4
    ClineER

    ClineER Light Load Member

    229
    139
    Apr 27, 2016
    N.E. Oklahoma
    0
    There is usually a hose from intake piping to fire wall, make sure it's in good shape and sensor if on other side of fire wall of where the hose attaches
     
    ClineER, Apr 10, 2018
    ClineER, Apr 10, 2018
    #4
    Bigrigmayo93 Thanks this.
  7. Apr 10, 2018 #5
    Bigrigmayo93

    Bigrigmayo93 Light Load Member

    132
    76
    Nov 28, 2016
    Chicago Illinois
    0
    I believe I know exactly what hose it is. I’ll check it out when I get to the truck tomorrow. Thanks again!
     
    Bigrigmayo93, Apr 10, 2018
    Bigrigmayo93, Apr 10, 2018
    #5
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