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2001 Chevrolet Tahoe

 

Question: a/c not blowing cold, only warm air.

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elmoe2, Barkhamsted, CT, July 23, 2012, 19:10
 Rookie

Dual a/c, front and rear.Just re-charged it tonight.Cmpressor is turning but the lines are not getting cold.On a trip last summer it was working fine when we left Ct. By the time we got to Vt., it was blowing warm air.

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  • Answer #1

    ziptie12 July 23, 2012, 20:16
     Master

    Dual zone systems take more R-134 than single zone. Did you check the label under the hood for system requirements? are you using guages? Did you evacuate system and vacuum for at least 30 minutes? Recharge with dye?

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    elmoe2, July 24, 2012, 18:22
     Rookie

    Answer to all three questions is the same. Yes we did. It was diagnosed by a shop I do a lot of bussiness with last summer when it first stopped working. But my buddy that's helping me is an engineer and has to check evrything for himself.

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    ziptie12, July 25, 2012, 10:20
     Master

    Hate to be a bother , but what are the pressure readings low/high , at idle with temp. at coolest and fan on high?

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