Unsure if leak stopped but I'm keeping an eye on it today.

The water pump pulley feels ok. Could it be any other pulley making that rattling noise?

 

I had to replace the idle pully and the water pump because the barring was starting to go bad and started to weep. it was a little fun do to how snug every thing is but. I hope you get it figured out

 

Yea the tensioner was a piece of cake. Yesterday I didn't notice any more coolant leak but I'm going to check this morning again. I also noticed a little bit of a leak from underneath the water pump. I was able to check it with a little mirror so that's going to get changed as well pretty soon here

 

It could be another pulley. This is why I recommended checking them all while the belt is off (listen/feel for issues in their travel). It's just based on your video, the water pump is most suspect.

If you are still leaking coolant, get a radiator pressure tester from the parts store (loan-a-tool). Connect it and pressurize the system to 13psi. Look and listen for hissing and bubbling. This allows doing all this without the engine running.

 

Just an update.

Rattling was belt tensioner which was 30 at my local oreilly. Changed in about 20 minutes.

The leaking coolant was water pump. 20 bucks plus another 10 for coolant. Changed in about 2 hours.

Thanks for all the help you guys gave me!

 

Happy to hear it's now resolved. And the over all investment (time and money), not bad. Now, for miles with smiles!!