Hi all, I have owned a 2001 Land Rover Discovery II for about three years now. It has had its problems but that has not stoped me from loving this car. I do mostly my own work on it, however a problem has come up I can not seem to solve, and I am hoping someone could help me solve this one before i have to go spend more money on this thing. Two weeks ago my car started making an obnoxious sound, it gets worse when driving and within the last week the check engine light has come on and off. I have checked the pulleys and idler pulley but nothing. Attached is a video of the sound, any advice helps! Thanks.