Colors and Materials problem

[ArgoLion 11]

Hello everyone, I would like to have some information, I'm working on two 3D models I want to import,the first is a traffic light and the second is a vehicle.My main problem is the " Texture" Color , simply put the color red (but not only ) me turning them in other colors ... to make you a better idea you link below the identified problems

 

http://i.imgur.com/XAzHWyC.png

 

In the first image the colors are as they should be and how especially were inserted

 

http://imgur.com/dJE40wT

 

In the second one there are colors like turns them on "Model Viewer".

I hope I can help and thanks you in advance.