Any ideas what this pink stuff is?
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Coolant
Mike6158
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Yup. Mine would be green 
but once I flush all of that out and replace it with "Toyota cool" it'll be red again
but once I flush all of that out and replace it with "Toyota cool" it'll be red again
Yep, coolant. Fairly recent leak as well. Typically...if its been then for long or drips onto a part of the engine that gets very hot...it will be a light pink powder.
No, the top line goes to your Vacuum valve. The line below that IS a coolant line that goes to the throttle body, but neither one of them appear to be leaking. My guess is that it is one of the plugs in the manifold right below those lines.
I would first inspect the hose, then clean the coolant residue from that area. Drive it some to determine exactly where (and how bad or not) the leak is.
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The upper hose (even though cracked/crazed) I'm pretty sure goes back to your vacuum valve (trace it back) so it wouldn't carry coolant anyway. The hose in front of that does carry coolant to the throttle body and has an obvious split in it. I don't like the wire type constant tension clamp on it either. Also the plug on the right of the manifold is sitting 'proud' and I believe it is supposed to be flush.
Read the link that @PADDO provided, it addresses the same issue you are having.
