Excessive Condensation

[Spacewhite21]

Started the truck (08 4.3) this morning and backed out of the driveway.  I see this huge puddle of water.  Not oily at all so im assuming AC condensation but the AC was not on.  i had only let it idle about 15 seconds before backing out.  It wasnt there before i started the truck.  Its coming from the engine compartment.  Any ideas?  I just has the oil pan and valve cover gaskets replaced last week if that make any difference. 

Edited March 2 by Spacewhite21

[Jworks]

Windshield washer reservoir, perhaps ?  Easy enough to check that, just fill it up and see if it leaks out.

[davester]

WWR is driver's side front, so unless the fluid ran across the truck and then back to the rear of the engine, that's not it.