So, tonight I ran a set of 14-ga wires in some basic corrugated split loom from the engine bay to the back of the truck for some aux reverse lights I am intending to install, but I am a little worried. The best route for the loom was basically along the steel fuel lines on the driver's side, which runs right above one of the heat shields for one of the many cats in the exhaust system. I can't really tell, but it is possible the loom is actually touching the shield.
Will I end up melting the wires this way, or will the heat shield keep enough heat away that it won't be an issue? I didn't really see any other way in running the wires, without going through the cab--which would be a lot more work.