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Heater Blowing High pitched whistle

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Old Nov 21, 2018 | 10:29 PM
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Default Heater Blowing High pitched whistle

I have a 1998 Jeep Grand Cherokee 4.0L and it is getting really cold where I love so I’ve been using my heater, however, whenever I turn on the heater there is a high pitched whining sound coming from somewhere in the heater but I can’t pinpoint it. Anyone have this issue or know a solution or what I should be looking for?

There should be videos attached of what it sounds like.

Thanks.
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