Question about 2003 Chevrolet Silverado 1500

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I am trying to recharge the AC in a 2003 Chevy Silverado 1500 Z71 and I cant find where to hook up my gauges to add freon. IT'S HOT IN TEXAS!!!!

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  • thomasrae May 22, 2009

    Ok, I will try it thanks

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It should be on the lines running from the compressor, they usually have a screw type cover that you take off to expose the fitting.
Do you know how to do it but?

Posted on May 15, 2009

  • Harry Goodwin
    Harry Goodwin May 23, 2009

    Have seen it done but have never done it myself, you have to have the gauges and a bottle of the refrigerant, is better left to the air conditioner people if you dont have the tools etc

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3 Answers

2009 chevy AVEO 5 ac blows hot air


The guage needs to read between 35/40 psi.. If its much higher you may be overfull, this causes it to not cool.. Fix by letting some freon out, then top it back to needed pressure.. If pressure is correct, it would be a clog in the system.. Usually an orafice tube or accumulator..good luck!

Apr 09, 2014 | 2004 Chevrolet Silverado 1500 Crew Cab

1 Answer

2004 chevy silverado ac not staying cold then blows warm on boyh sides


When the ac is blowing hot, is the compressor working when the engine is running ?
Have you checked the system to see if it is full of freon ?

Aug 03, 2012 | 2004 Chevrolet Silverado 1500

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On a 2001 chevy silverado 2500HD the ac blows cool in idle or slow speeds but while driving the air gets warm and then cool warm and then cool etc. i cant tell if the compressor is cutting on and off


You might be low on freon if not compressor going bad to see if your compressor is going on and off turn on a/c on max have some one hold gas peddle down around 1500 rpm or just at a small fast idleif compressor goes on and off recharge it most likely one or two cans will be enough

Aug 24, 2011 | 1999 Chevrolet Silverado 1500

1 Answer

When you change from heat to air , it still blowes hot air like it is not switching to air conditing, the compressure is running and lines get cold, but no cold air. thanks


If the orifice filter is clogged, this will happen, a better check can

be done with an ac manifold gauge set, the low side reads the

evaporator pressure and the high side reads the discharge

pressure. I had the same problem while checking the ac on a

2000 gmc 1500 z71 4x4. other things that could cause this are

to much oil in the ac compressor or not enough freon in the

system. an overcharged system , the best way to check it is with

a gauge that way you can tell if you have the right amount of freon

and oil in the system. plus the gauge set will let you know the

extent of your problem. good luck!

Apr 06, 2011 | 1999 Chevrolet Silverado 1500

1 Answer

My a/c has always put out 38 degrees air on max recurculation mode no matter how hot now it will only put out 50-60 at the best gauges hooke dup freon is good clean blower motor ck air vent working inside...


you can check and clean ac core by removing cabin air filters at the bottom side of ac heater case small bolt holds strap and drop the filters and look at core

Aug 16, 2010 | 2003 Chevrolet Silverado 1500

1 Answer

Ac started blowing hot air on my 2005 chevy z71 half ton crew cab ac blower was working fine just started blowing hot air


The seal package in your unit leaked out the freaon. It will have to be resealed again and recharged.

Jul 27, 2010 | 2005 Chevrolet Silverado 1500 2WD

2 Answers

On my 2003 Chevy Silverado, the A/C compressor won't kick on. Just blows out warm/hot air.


The ac system may need freon added,if the system is low,or out of freon,it will not allow the ac compressor to come on.

Apr 11, 2010 | 2003 Chevrolet Silverado 2500HD

1 Answer

On a 2003 Chevy Suburban Z71 4X4. A few times I have had all dashboard gauges not working. I've been able to turn off the truck and restart it and the gauges work fine. Today the airbag light came on...


This model always this problem, usually after about 90,000 miles and the other instruments will eventually follow. There are companies that will repair this for you just use google (instrumentclusters.com) to find them. I was charged 185.00 for the repair... GM wanted over 500.00!

Jan 11, 2010 | 2006 Chevrolet Silverado 1500 2WD

1 Answer

Ac blows hot when idles


go have the system recharged. it uses R34 refrigerant coolant. if problem persist the check for leaks. if no leaks then check A/C compressor. if out replace it. That will solve your problem....

Aug 07, 2009 | 2003 Chevrolet Silverado 1500

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