I have a PCM 6.0 model 409 that is losing coolant from the closed part of the cooling system. Will go from Max fill line to minimum fill line in less than hour I believe.
I cannot find a leak in any line after looking. Do not find coolant in the bottom.
Anyone with a similar experience? Any ideas? Solutions?
The boat has a heater and the connections are not visible. I may take out front panel and try to access it. Not easy. Tight area.
Thanks for any help.