I have an 8 year old Jandy Stealth pump with an AO Smith Motor. When it starts up in the morning it makes a loud high pitched noise most days. This started about 2 weeks ago. If I shut it down and clean out the pump basket sometimes the noise will stop. Seems like it might be a bearing, but maybe could also have something to do with the impeller. I'm pretty handy, but this is not my area of expertise. Any help you can provide diagnosing the issue would be great. It doesn't look like replacement is too tough if I know what I should be replacing. Thanks very much! John