Question about 1994 Buick Regal Gran Sport

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My Cars temperatue gauge is

My 1994 temperature gauge goes up after awhile of having my AC on. It seems to raise when Im waiting at a light or in stop traffic. It makes it way up to the red 260 mark. What could cause that? Low Coolant in Radiator, thermastat or a fan? Please help me out! Thanks

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The rad must run as soon as AC is put on ,some cars have a pressure switch that put the rad on when the gas pressure in the ac system goes up with temperature ,cheapest way round this is to connect fan via a relay to the ac pump feed so as soon as ac is turned on fan comes on

Posted on Jun 20, 2009

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