So for our mechanical gurus out there, I have a puzzling situation. I can generally diagnose a few things but can’t fix shit, unless it’s pretty basic.
So, during the brutal cold snap a month ago where it got to -45 or colder for 10 days or so, my truck started to leak antifreeze from where the upper road hose is attached to the rad. Fearing the worst I had a cracked outlet on the rad, I took it in hut they weren’t able to look at it for a week due to other vehicles breaking down. Anyways, take it in…they do a pressure test and all that, can’t get it to piss a drop. Holds pressure, won’t leak. They put some new clamps on, sent me on my way.
Truck has been good but then this quick little two day cold snap hits and another f***ing puddle of coolant under the front, sure enough leaking again from the same spot. It’s warmed up today, drove it home after work and no puddle.
My next move is to replace the upper rad hose and put oem compression clamps back on to see if this solves it. Any of you mechanics or DIY’ers ever see this where coolant only leaks when it gets cold out and what the fix was? Something is obviously shrinking enough to allow coolant to bypass. I know I replaced one of the hoses about two years ago (don’t recall if it was upper or lower) so maybe I just have a shitty hose if it was the upper one.
