different color tint on my textures

I noticed some of my modded cars that have textures will spawn with a blue, gray, red or white tint to them on top of the texture ive added. I have a red and white paint texture on my cars so a red tint doesn't look right lol. I think its because they are in the slot of unmarked cruiser where the car spawns a different color each time.. id like to be able to remove or add this effect does anyone know how???