Suburban F-35 furnace squeal....
Time to deal with this. It's been squealing for years, once it heats up. Sometimes not if it's cold enough outside (freezing). I generally get 10=15 min. of running time before the high-pitched const...
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Forget about trying to oil, just replace the motor & be done with it. Not a bad idea to give it a good inspection while you have the furnace pulled. Be surprised what you might find!
