When I AO texture the bumper of this truck I get these weird lines as shown in the picture below.
Any Ideas on how to fix it?
Thanks in advance.
Tex
This looks like inadequate bleed around the UV islands. Anti-aliasing in the texturing is pulling in color from the adjacent space around your template on the map.
When making the map you should allow for something around 8px of margin around each island group. Then when painting, under the painting options tab, increase the bleed setting.
Depending on your model, you may have to increase your map size to allow for this and keep a clean sharp texture. (Instead of 2048x2048, try 4096x4096, etc.)
Hopefully that should get it.