Does anyone know what this may be Does anyone know what this hose may be?..I see a little drip of water from it...please help ASAP

That would be the blinker fluid overflow.









It's actually the A/C drain to get rid of condensation.

Ok thanks, is it ok for it to leak ..I did a flush with distilled water I see a little slow leak occurred overnight

I believe that goes to somewhere in your truck. If water somehow got inside your truck, it would drain from that rubber hose out.

Wait, you flushed through that hose with distilled water?

When you turn on the A/C, water will condense on the evaporator. It drains out through that, perfectly normal to see a puddle of water under the car when you've been running the A/C.