Forum Discussion

farmingdad's avatar
farmingdad
Explorer
Jul 12, 2021

Isx15

Will a isx 15 deleted EGR but still on there. The cooler deleted also, does that stop the water from getting to 5an 6 cylinders. There is a line that comes off the cooler and goes to the block. I guess I’m asking does it still circulate through EGR and in the line to the rear of block
Class A

2 Replies

  • Mote's avatar
    Mote
    Explorer
    Jul 13, 2021
    on the ISX15 the coolant to the cooler goes from front to back. The port in the rear of the block is the return and goes into a large coolant cavity which also includes the oil cooler assembly.
    That cavity in the block runs the entire length of the engine so coolant will get to all cylinders and then up thru the head.
  • MountainAir05's avatar
    MountainAir05
    Explorer II
    Jul 12, 2021
    Just google "cummins isx15 water cooling circulation diagram" and there are a lot of pictures in color for you. Can't help you other than this.

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