1. Voodoo, Jun 3, 2021

   #21

   

   Voodoo New Member

   Joined:

   Jun 3, 2021

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   4

   Location:

   Tennessee Knoxville

   Where is the water pressure expansion tank sensor located
2. CSkipR, Jun 3, 2021

   #22

   

   CSkipR Member

   Joined:

   Aug 16, 2008

   Messages:

   965

   Location:

   New Smyrna Beach, Fl

   If the gauge is showing nothing (not even zero) then more than likely it’s the sensor. I had that happen twice. Before replacing sensor check the connection at the sensor as it could have a loose wire inside the square cap.
   If you happened to open the cap when the engine is warm it will lose that pressure. Then u need to pump up with air. If u let it sit overnight and start it up then it will build pressure as normal.
3. Voodoo, Jun 3, 2021

   #23

   

   Voodoo New Member

   Joined:

   Jun 3, 2021

   Messages:

   4

   Location:

   Tennessee Knoxville

   Do you have a picture of the sensor
4. Voodoo, Jun 3, 2021

   #24

   

   Voodoo New Member

   Joined:

   Jun 3, 2021

   Messages:

   4

   Location:

   Tennessee Knoxville

   I have a coolant pressure water pump aft fault any thoughts
5. CaboFly, Jun 3, 2021

   #25

   

   CaboFly Member

   Joined:

   Aug 24, 2018

   Messages:

   270

   Location:

   Seattle

   Skip sold his Xabo so not sure if he is still following the forums.
6. Capt J, Jun 4, 2021

   #26

   

   Capt J Senior Member

   Joined:

   Jul 11, 2005

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   14,540

   Location:

   Fort Lauderdale

   Most likely the sensor.

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