It really depends on where the noise is coming from, however from your description of the sound, I would say it was a belt slipping in the pulleys, either from the engine pulley or the gearbox pulley, it could also be a seized idler pulley, check the belt manually to see if it appears loose.
SOURCE: loud squealing noise
The noise is most likely the serpentine belt. Check it's condition and that of the belt tensioner. It sounds like the belt is slipping, causing the squealing noise u describe. As the belt warms up, it's getting a better 'grip' and the noise stops. Turning on the heat also turns on the a/c in newer cars, this added drag on the belt (one more component to turn, the a/c compressor) would explain why it happens when u turn on the heat. Is the belt original? If yes, it's time to change it, and check the belt tensioner to make sure it's doing it's job of keeping the belt snug on all the pulleys. Let me know how u make out.
SOURCE: How do you remove the electric clutch from a
Remove the primary belt and mowing deck to give yourself some room to work.
Locate the wires from the clutch and follow them toward the frame until you find the plug and unplug it.
Remove the bolt and washer from the center of the clutch going up into the engine crankshaft and slide it off the shaft. It is quite heavy so be careful when it comes free.
SOURCE: Blades will not engage on Husqvarna riding mower.
I have a Husqvarna GTH2548 and the blades will not engage. It is free from all debrie
SOURCE: loud squealing noise during wash and rinse cycle
The dishwasher make "loud high-pitched squealing sound" during the rinse cycle that is periodic through out the cycle
SOURCE: husqvarna riding mower blowing white smoke out front
check the oil does it smell like gas the needle valve is not seating and gas over flows the carb and dumps it into the crank case
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