How much air conditioning refrigerant you need to put into 2003 Silverado 1500 depends on conditions listed below.

in your garage to make future searches easy.

Condition Mass
expand_moreRefrigerant R-134a
Vehicles with front A/C 1.54 lb
Vehicles with front and rear A/C 2.49 lb
expand_moreRefrigerant oil polyalkylene glykol (PAG)
System capacity 7.1 US fl. oz.
Accumulator 2.03 US fl. oz.
Plus the amount removed.
Compressor 2.03 US fl. oz.
If less than or equal to 60 ml (2 fl oz) removed, add 60 ml (2 fl oz). If more than 60 ml (2 fl oz) add the same amount removed. Use only Polyalkylene Glycol Synthetic Refrigerant Oil (PAG) for internal circulation through the R-134a A/C system and only 525 viscosity mineral oil on fitting threads and O-rings. If lubricants other than those specified are used, compressor failure and/or fitting seizure may result. Delphi-Harrison replacement compressors do not have any oil in the compressor. Add the correct amount of oil to the replacement compressor before installation. Denso compressors are shipped with oil in the compressor.
Compressor and condenser hose 1.01 US fl. oz.
Condenser 1.01 US fl. oz.
Evaporator 3.04 US fl. oz.

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2003 Chevrolet Silverado 1500 user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.

Before doing any DIY service please check your insurance policy and Chevrolet warranty policy for your region. In some regions DIY service may invalidate your warranty.

Conquer your fears and never give up!

DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow Chevrolet Silverado 1500 service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.

Doing basic service for your 2003 Chevrolet Silverado 1500 you're not only saving money, but also also improving your technical skills and learning something new.

Chevrolet Silverado 1500 First generation first facelift model years

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