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holley

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2003 vy commodore
h
 
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ephect

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I'd start by replacing the relays. Sounds like once it's latched is not releasing correctly. They're cheap enough.

I'm not 100% on VY/Z but I do recall reading that only 1 fan turns on for cooling, the 2nd only comes on with AC.

Maybe wait for someone to confirm the fan design.
 
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