What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[89Suburban]

Just noticed this on the passenger side of the engine and scratching my head. edit; there's some white build-up on the pipe itself not caught by the image
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You should replace those tee's and the heater hose nipple where it is crimped. They are 3 separate parts and a major PITA. But if one of them let's go on the road that is worst, bad news bears.

 

[Pandabird]

You should replace those tee's and the heater hose nipple where it is crimped. They are 3 separate parts and a major PITA. But if one of them let's go on the road that is worst, bad news bears.

Ah I see! They are the lines into the heater core right? Other end of the hose goes into the water pump. Might just do a full on coolant swap while I'm at it