Rattling sound in my ABS

hey guys just wondering what this rattling sound in my car is.... after starting my car, there comes a rattle every five minutes, and when it rattles the engine gets weaker. this all happens in two seconds, but is starting to become a concern because its not normal. when i came closer, found out it was my ABS unit making that rattling sound. what do you think it is??? once i put some brake fluid in it and the rattle came to a minimum, but then got louder again. any suggestions???

I have the same problem. My mechanic says that the ABS unit on the left side is bad. This will affect the way you stop. I take a lot longer to stop. If you find out where to get a new one let me know at dfintegra@hotmail.com.