So I bought this cougar for 2200 a few months ago, it has 99,500 miles on it. This past month it's been making a very audible and quite annoying ticking noise coming from the passenger side of the motor. My friends say it sounds like a tensioner or idler pulley tick. Which it very well could be but I'm still worried about it. It got very loud last week then quieted down a lot more today, I haven't driven it all winter. Probably about 700-1000 miles past wen the oil was supposed to be changed. The thing is, the tick is only there when it's idling. Right when you put on the gas it completely stops. I have no idea what this could be and don't have very much money to fix it so any help as to what this could be will be greatly appreciated.