Thought this info' might be of use. One of the washer jets on my Cherokee had been a bit limp for a few months and I put it down to being partially blocked, or, fecked in some way, then they both packed up just in time for the MoT. After many thoughts of trying to remove hidden pipe work, reservoirs and pumps it turned out that the windscreen wiper mechanism had been rubbing on the pipes eventually making a hole big enough to make both jets pack up. One pipe connector and a couple of cable ties to keep the pipe out of the way in future and job's a good un.
