on my 2004 dodge 1ton ram the ABS/brake light came on when I came to a stop. later when I got out of truck there was this load noise coming from under the hood like the car next to me was running,,,,open the hood and finally figured the noise coming from part of the brake system. aluminum box with bunch of metal lines going in and out. I got the electrical plug on top to up plug and that stop the noise. brakes still work, light is still on so figure the ABS are not working.
any ideas?