Lower radiator hose on my Cat diesel engine is leaking. It is in a Holiday Rambler DP. I opened the petcock and removed the cap but the anti freeze is coming out slow. I read somewhere to just remove ...
I changed the hoses on my 2000 model, and my experience was like what K & M just posted.
Be prepared to get wet when you pull that lower radiator hose.
There is an excellent writeup on how to change the coolant on the Cat 3126/C7 by Brent Wolfe (Wolfe10 on this forum). The writeup can be found in the thread linked below...just scroll down to the third post by Wolfe10. coolant change thread