No, I'm not sure yet, and thanks for pointing that out as a possibility. I'm hoping to look at it this weekend. I haven't removed the wheel well liner or module yet to look for the dye markings. I was trying to keep the vehicle useable until then and am waiting on the desiccant kit to come in. With the lines being opened up and 90K on the clock, I figured it was a good idea to replace that also.