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Old 27 Oct 2008, 03:11 pm
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CREWZIN CREWZIN is offline
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Join Date: Sep 2001
Location: West Central Florida
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Default Re: Surging Problem 2001 PT 13k miles

Right, it's the high speed fan that keeps the engine water temperature down when the A/C on and there's no air flowing through the radiator. Once you reach 35 mph the fans shut off as there's enough air flow to keep everything cool.
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