Question about 1999 Oldsmobile Aurora

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Air condition blow hot air during the day and in the evening is very cold.

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This could be caused by two items first make sure your headlights are on durring te day and if the A/C works it is a open ground or the temp diff from day to night is just enough to change freon presure in the system to engage the A/C presure cut -off.To fix that simply add a little 134A freon!

Posted on Aug 05, 2010

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If their is a leak anywhere while you recharge, you will know.

Try recharging the air conditioning first, it is very simple and the kits come with simple instructions.

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The air conditioning is supposed to blow only cold air. Are you trying to get the heater to blow hot air? Make sure the temperature selector is in the hot position.

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