My vacuum sounds like it is screaming the entire time it is on. We have cleaned out every possible area, but it is still extremely load. Any …

\015 We suspect it may be a motor issue, but do not know how to access or replace the motor. I can't believe an expensive vacuum such as this is intended to be thrown away 3 years of use. Can you help us?\015 – Bissell 87B4 Bagless Upright Cyclonic Vacuum