Yesterday my 2013 JKU started to squeal. First, it would only happen for a few seconds every 10 seconds. Within a few minutes it would not stop. I looked at the belts and noted that it was coming from low on the motor. Took it to the dealership this morning.
I was told that there is a service bulletin on the water pump for just this issue. They have ordered a replacement, but it could be weeks on backorder. Sounds to me like they are planning for a lot of replacements.
In the meantime I was told that there is no issue with failure.
I have only 5900. When I took it in, the service coordinator immediately acknowledged a known issue with the squealing water pump. He said the new pumps are on backorder and that he has no ETA for its arrival. Sounds like it is a recent issue that they have yet to receive the upgraded water pumps to resolve. I could not find a posted TSB.
Ive been waiting two weeks now. I also has an issue with my clutch that they said they would do at the same time, but if I knew it was going to take this long I just would have had them do it in the begining. I might stop in their today and ask about it.