1992 Pontiac Firebird HEATER NOISE

Tiny
FLUIDX19
  • MEMBER
  • 1992 PONTIAC FIREBIRD
  • 200,000 MILES
1992 firebird 3.1 makes loud screaching noise when I turn on the heater then after 10 minutes or so it goes away. But after that it continues randomly and this is very annoying. I found out that when I smack the passanger floor panel it will stop for a second or 2. It sounds like something is caught in a fan or something I would just like to know what I need to replace or if possible a way to fix this without having to replace anything. The heater does work.
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Thursday, November 7th, 2013 AT 5:43 PM

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Tiny
CADIEMAN
  • MEMBER
Disconnect the blower motor and see what happens.
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Thursday, November 7th, 2013 AT 7:00 PM

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