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Oil & Diff Temp Question

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by NakedRussian, May 9, 2020.

  1. May 9, 2020 #1
    NakedRussian

    NakedRussian Bobtail Member

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    May 9, 2020
    0
    Hello Fellow Drivers,

    I recently purchased a used 2015 Freightliner Cascadia 125 w/Cummins ISX15. My only problem is that it was built for a fleet and doesn't have any of the following gauges; Turbo Boost, Pyro Temp, Transmission and Differential Oil Temps. I am mechanically inclined so adding the gauges and sensors won't be an issue for me, the issue I'm having is finding The Correct Oil Temp Sensors for the Transmission and Differentials (As I don't want to drill and tap the Diffs or Transmission with the oil temp sensors given to me by Glow Shift Gauges). I would like to use original Freightliner parts for ease of comfort in the future. Been to Dealerships and Mechanics, no help as the truck didn't have these sensors originally, they can't find them for me! Any help/tips would be greatly appreciated! Thanks.

    Transmission: Eaton Fuller Fro-15210C 10sp Manual
    Differential: Rock Mt-40-14X Tandem Axle 3.36 Gear Ratio
     
    NakedRussian, May 9, 2020
    NakedRussian, May 9, 2020
    #1
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  3. May 9, 2020 #2
    AModelCat

    AModelCat Road Train Member

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    Typical lazy-### parts people. Freightliner probably only uses 1 or 2 different sensors across all their models anyways lol.

    I would suggest finding someone who has a truck with the same model of diffs as yours with the sensors and give the dealer their VIN.

    If the diff housings are already drilled/tapped for sensors, you could also just find temp sensors with the same type/size of threads. Just make sure they don't hit anything inside.
     
    AModelCat, May 9, 2020
    AModelCat, May 9, 2020
    #2
    A5¢ and NakedRussian Thank this.
  4. May 10, 2020 #3
    KVB

    KVB Heavy Load Member

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    Other than that:
    Make sure the characteristics of the sensors (resistance vs temperature) match the gauges.

    If you buy them as a set, you'll be OK.

    If you buy sensors and gauges seperately, the characteristics may be different, and your readings may be incorrect.
     
    KVB, May 10, 2020
    KVB, May 10, 2020
    #3
    spsauerland and AModelCat Thank this.
  5. May 10, 2020 #4
    RocketScott

    RocketScott Medium Load Member

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    Apr 10, 2013
    Kentucky
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    Did you check to see if the senders are already there?

    My truck didn't come with a trans temp gauge but the trans had a sender and the wire harness was complete from behind the dash down to the frame rail. Just needed to make a wire to connect the sender to the harness, bought a gauge off eBay, and drilled another hole in the dash
     
    RocketScott, May 10, 2020
    RocketScott, May 10, 2020
    #4
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