I had it cracked due to the age of it, if is the same in your case. Usually I check the engine every two/three days, so no much dirt of oil, I noticed the cause and located it easily. I tried to tape it, using pipe tape, also put some kind of glue and wrapped it, did not last, the pressure was too high and failed again. I bought one from Amazon for £16. I removed the top plastic part and replaced it in one piece. It was not easy job, removal of bumper is a must. Its been six months since, no problems with the replaced one.
https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1
I would get the sorter version of the hose, removing the top plastic part is very, very difficult. I end up removing in pieces.