heater hoses replacement instructions please?

Here is a video of a Chevrolet but the process is about the same on your vehicle:

https://www.youtube.com/watch?v=lwtDjEk5qXY

Below is the process on how to replace this from the manual which will give the detail needed to complete this.

Also, here is a guide that will help with pressure testing the system after you are finished to make sure there are no other leaks:

https://www.2carpros.com/articles/radiator-pressure-test

Please see the attached below and let us know if you have other questions. Thanks

Need to replace the metal heater hose assembly. Two questions...Most importantly... how does the by-pass in the heater hose assembly work? Does the metal piping have a release valve built into it that automatically opens when backpressure increases due to heater core getting clogged? Or, is it simply a smaller diameter line in the by-pass than the one that goes to the core, forcing coolant through the core by "path of least resistance" concept ?The hose assembly is incredulously wrapped around a long black plastic tube that run vertically just adjacent to the corner by the driver's side firewall, resembles an extension on a leaf blower, and is open on the end. I cant figure out how to get the assembly our without removing that tube (horn, possibly?). Thoughts?

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

no valve or nothing its just a bypass hose

water leaks rear of motor.

This is most likely a heater hose so here is a guide that will help with this.

https://www.2carpros.com/articles/replace-heater-hoses

Plus below is the info from the manual on how to replace these. Let us know if this is not it. If it is not, I would pressure test the system in order to find where the leaking is coming from.

https://www.2carpros.com/articles/radiator-pressure-test

Let me know what questions you have. Thanks