Question about 2003 Chevrolet Silverado 2500HD

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2003 Chevy Silverado 2500HD

A/c will not get cold and the compressor, the orphis tube, receiever dryer all have been changed.. it gets cool at a high rpm

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Check to see that your cooling fan is operating correctly

Posted on Jun 29, 2009

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2003 chevy silverado 2500hd heater fan goes on and off in cold weather


If it does it at all speeds, I would look at the controller. Loose plug or contact inside it. If it does it only in low speeds or only high, replace the resistor, behind the blower.

Nov 29, 2015 | 2003 Chevrolet Silverado 2500HD

1 Answer

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

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I have a 2003 chevy Pickup 1500 5.3. When I start the car the air is cold. I drive a few blocks then it blows warm air. What coluld the problem be


low charge or too high of a charge.
the low side should read 25 to45 psi at idle.
But, if the a/c behaves this way, there might be a restriction in the orifice tube near the firewall

Good luck to you in fixing this problem.

Jul 10, 2010 | 2003 Chevrolet Silverado 2500HD

1 Answer

Hey I am haveing a problem with My 2500HD ac system. I have changed The Condensor, evaporator, and the Compressor. I have charged it to the correct levels. It blows cool air, but it doesn't get cold....


Did you change the Receiver/ Drier and the Orfice Tube/ Expansion Valve? The Receiver/ Drier takes moisture out of the system and the Orfice Tube/ Expansion Valve controls the Hot/ Cold air. If that is bad it may not be opening or closing fully which would not let your A/C get as cool as it supposed to.

Jun 25, 2010 | 2005 GMC Sierra 2500HD 4WD

1 Answer

Where is the air conditioning orfice tube located on a Chevy 2500HD truck?


Either in the condensor end of hoses or receiver dryer end of hoses. If hoses join in a union near dryer by firewall it is usually there between both unions.

Jun 06, 2010 | 2003 Chevrolet Silverado 2500HD

1 Answer

Does the engine on a 2001 Chevy Silverado 3500 Durmax Diesel need to be cooled before changing the Thermostat? And is cold weather bad to do this in?


a hot coolant system will have preshure so that need to be relived, but is you dont mind burns it is ok to do hot, and ther is no problem doing this in cold weather.

Jan 05, 2010 | 2004 Chevrolet Silverado 2500HD

1 Answer

Location of engine thermostats on 2003 ch2500hd turbo diesel


Check this location.
Between the alternator and A/C compressor, on the top. The other thermostat with vent holes goes toward the rear of the engine.
I believe the temp ratings are different for each.
Let engine cool before working on it.
Clean up an spilled radiator fluid. It will destroy pets liver in 24 hours if they drink it.

May 31, 2009 | 2003 Chevrolet Silverado 2500HD

1 Answer

AC BELT NEEDS CHANGED


You have to remove the main serpentine belt first. this is done with a 15mm wrench put on the tensioner. then from the bottom you can get to the a/c belt tensioner. install a 3/8 ratchet on it and remove tension from belt. I find the only way to get belt on and off is too slip it off the tensioner then off the backside of crank pulley then slide off of a/c compressor then install new belt onto the crank letting it fall off the backside run belt around compressor tensioner then work around crank pulley

Nov 17, 2008 | 2003 Chevrolet Silverado 2500HD

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