I got in one car it would tell me the part was not discoverd, I said forget it, I just rebuilt and restored the entire car. So I had to change out all the parts with brand new parts.
But still would not stop claiming a NORMAL NEW BREAK IN CONDITION part was bad. And when replaceing bad breaks, I discovered that every part I touched to take off, it started stating that they were bad, I already changed the bad parts. I did one and all the parts were between 90 to 99%. Just because it is not in the WO infomation means nothing, that is up to you to find. You could be releaseing a car that was missing a licens plate. Replace the customer car with NEW parts at all times, And anything else that may be missing, including body parts, no matter if it is listed or not. Story line cars are specials, and there for you have to do what it says. And if it says 70%, it will hang if it is below 70%, because story mission cars are not like the other cars, the other cars are random.
If it is a story mission car, bad news, if it says all parts are to be 100%, the game may 'hang' if your grabing parts off that are not 100%. Well, without the work order infomation, I sure can't help you.