I have a small pinhole leak in the "check valve" between two heater hoses right above the bell housing on my 98 XJ-8. I cannot verify what this part is with the diagrams I have here. This part has an arrow on top, which makes me think it must be a check valve ( one way valve ). I have seen the complete hose assembly for sale, which includes this part, but I would like to verify what I am looking at here. Any help from the experts is appreciated.

Thanks...

 

See page 68 . Not on the X300 model

http://www.jagrepair.com/images/Trai...des/703_SG.pdf

 

Thank you for the manual...I needed this information.