Dryer suddenly very noisy and vibrating/rumbling
My 8-month-old Maytag dryer model # MGD5500FW0 suddenly became much noisier than usual and was vibrating perceptibly. It’s somewhat rumbly and raspy sounding. It suddenly stopped about 10 days (probably a dozen cycles) later.
"On this new a machine, the first thing to look at is the Drive belt, it could be slipping on and off or if to loose inverting then going back into place. Feel it for wear and visually inspect it for marring.
The drive belt is a very long, slender belt that wraps all the way around the dryer drum, around a tension pulley, and then around the drive motor. Over time, the drive belt can become frayed or otherwise damaged. If the drive belt is frayed or damaged, the dryer will be noisy as it turns. Inspect the drive belt for signs of wear. If the drive belt is worn, replace it.
One or more of the drum rollers might be worn out. Many dryers have two drum support rollers on the rear of the drum, and some dryers have two more rollers supporting the front of the drum. When the drum rollers are worn out, they can cause the dryer to make a loud rumbling noise. To determine if the rollers are worn out, inspect the rollers. If one or more of the rollers are severely worn, we recommend replacing all of the rollers at the same time as a preventative measure. (The roller shaft can often be reused if it is in good condition. Clean the shaft thoroughly before installing the new rollers.)
Drum Roller Axle
One or more of the drum roller axles might be worn out. Most dryers have two drum support rollers on the rear of the drum, and some dryers have two more rollers supporting the front of the drum. Over time, the drum rollers and axles wear out, causing the dryer to make a loud rumbling noise. To determine if the drum roller axles are worn out, remove the belt from the dryer and try turning the drum by hand. If the drum does not rotate freely, check the support rollers for wear. If the rollers spin freely without wobbling, the axles do not need to be replaced. If a roller wobbles and/or does not spin freely, we recommend replacing all of the axles and rollers as a preventative measure."
I will hazard the guess that some pocket change or some other such small object was in the clothes loaded at some point and it got into the felt gasket at the back of the drum to make your “rasping” noise effect. It may have then worked its way thru some how and dropped into the inside of the machine. Only way to know for sure is to disassemble and find said object in bottom of machine somewhere or possibly subject yourself to a greater mystery if you don’t find any such object inside somewhere.