Could have sworn folks doing early tow hitch installs (before FEH specific hitches were available) noted that one issue was the coolant lines running near where a hitch would be secured.

That and the sounds I hear when I know the battery's getting cooled sure sound like A/C kicking on back there, vs. just a fan.

All this is poor memory and speculation, however, so I'm not disputing just adding my 2 cents.

- Shannon (Geeky, Wild Texan)