I done gone and did it...HIDs for a 2004 Sierra

[Alljackedup408]

Pressure wash your radiator. Now.

 

[Draenor]

Pressure wash your radiator. Now.

I am later today. I couldn't believe how filthy it was.


Sent from my overly sofisticated electronic device.

 

[ScottyBoy]

Pressure wash your radiator. Now.

I was just about to say this. I flushed out the fins on mine spraying from the engine side. A shit ton of
bugs and dirt came out. And it actually lowered my temps by a few degrees , and I got better AC performance too.