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02-09-2025, 07:43 PM
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#1 |
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Active Member
 
Join Date: Jan 2025
Location: Clarkdale, Arizona in a van down by the river
Posts: 145
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Squeak or whistle inside when starting or shutting down
It is coming from in side and it makes a distinct whistle type squeak in the same pattern. I think it is from the HVAC system and possibly the blend door closing, It is not a belt and it does it on startup and on shutdown
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'72 C10 / 402 ___________________________________________ Freedom isn't safe, it requires you to take responsibility for your own life, your own safety, and your own success. It carries with it the possibility of failure and the understanding that you're working without out a safety net. If you give the state the responsibility for any of these you also give up the freedom that accompanies the responsibility. |
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Yesterday, 07:39 PM
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#2 |
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Senior Member
Join Date: Jun 2022
Location: San Ramon,CA
Posts: 666
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Re: Squeak or whistle inside when starting or shutting down
vac lines to the flapper, and to the control panel
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1970 C10 Custom longbed 350/350 Code:
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