I have an 06 Impala LT that looks like it's leaking coolant near the front passenger door. I noticed it this morning when I saw a wet spot on my driveway. I didn't see any oil/transmission leaks but I am not 100% sure that it is coolant (looks light pink). It looks like the small bleeder valve on the bottom left of the radiator is leaking. 


[![This is the puddle I saw in the front passenger side][1]][1]


[![enter image description here][2]][2]


[![enter image description here][3]][3]


[![This is where it's leaking underneath][4]][4]


  [1]: https://i.sstatic.net/bJb2Z.jpg
  [2]: https://i.sstatic.net/kWSSI.jpg
  [3]: https://i.sstatic.net/Hr7fE.jpg
  [4]: https://i.sstatic.net/dO7Xn.jpg