Maytag still squealing after taking off idler pulley and re-greasing it

[mcwak260]

Hi,
Read a few threads and pulled the idler pulley and re-greased, the dryer continued its high pitch squealing from what still appears the idler pulley area.  I intend to replace the idler pulley itself and am wondering if I should go ahead and replace the belt too (has it become to stretched and causing the squealing?)  and what about the pulley idler arm itself? Dont want to have to replace if i dont need to.  Other than the annoying noise dryer works great.  Thanks!

Model DE7400

[JWWebster]

I use zoom spout oil on all the rollers and idler. It is safe for dryers and don't dissipate from the heat.

[niobrara]

Anymore you are better replacing the the idler arm and pulley,also the same with rollers.Also I would replace the belt .What there made of has changed and while oil may work for a short time the noise will return.