i have a 3yr old ge easy care dryer. about 2 months ago started simple squeak when running. assuming overload, i reduced load and it went away. not every one followed my instructions. but i did notice as cloths got dry it went away. now it does it all the time and as close get dry it backs off but still squeaks loudly. at an ask ctr recommended replacing an idler pulley. is there an available drawing and is it a simple repair? my mechanical capability level is plugs/bearings etc. in a car.