hi guys so im taking the radiator out. on the very end of the passenger side end, theres a packed debris built up (Willows,hay,dandelion pods,leaf,etc). about inch wide running the vertical length of the radiator. why is it there, and can someone tell me if lexus issued something on it and how to fix it? thanks a bunch

 

Have you tried picking at it to remove it and vacuum it up?

 

Yes, I picked it away. What about the aerodynamics under the hood pushes it there. You can still see the outline of the buildup

 

On my vehicles I just backwash it out with the hose.
I'll look at that tmrw. This car runs the fan a lot more than others.

 

why is it settling there is the question. i posted a pic, take a look