Nestors2k

I have a small leak on my coolant hose right about the oil filter. I'm about to replace it but I need to know if I need to bleed the system after, if just a small amount of coolant comes out when removing.

zeroptzero

You will get air in the system depending on how much coolant leaks out, and how fast you can swap the two ends of the hose during the process. The quicker the less fluid loss. You should burp the system and you will need to add a small amount of fluid depending on how much is lost, it won't be much though if you do the hose swap quick enough.