Howdy folks!

I'm brand new here, and a bit of a neophyte when it comes to self-repair, but I've had enough EXP to be confident in diagnosing/fixing this issue with a little bit of guidance from folks with a bit more season.

I've got an 03 B2300 that's leaking coolant when there's pressure. The leak is coming from a hose leading from the heater control valve into the engine block (can update w/photos)

Seems pretty straightfoward, right? Pull the hose off, replace it, see if the issue persists. Any other potential hiccups I should be aware of? Thanks so much for taking the time to respond

 

Seems like a good time to drain and replace the coolant too. Use a good quality replacement hose, not a cheapie. Fine to cut off the bad hose, especially if it attaches to a plastic outlet/fitting. Some factory clamps are a hassle, consider getting new, better clamps. And when filling the system with 50/50 coolant, you'll need to bleed ALL the air out of the cooling system.

Many systems will only leak when there's pressure, so good job pinpointing the leak.

 

Appreciate the response! Intending to do the job this weekend and will update with results. Ive just been refilling the resevoir w/coolant as needed. I will research how to drain/replace, thanks for the tip.