Question about Chevrolet 1500
The refrigerant that you add may not build up the required pressure to close the switch. sincd you noticed already that the system would not hold the charrge then you have a big leak.
you need to find that leak first, repoair it then charge it.
if you know how to do it then you will save a lot of money but it need a professional to do it plus the extra special tools that you require in order to do that.
you could trace all your outside lines for oil stains in the hoses, compressor, condenser, drier, fittings. if you can not see any sign of leak, then it could be in the evaporator coil which is covered by a plastic housing near the blower compartment.
that you can not see if there is leak so you have to bring it down. if you have a big book for your car, there could be a step by step preocedure on how to bring it down. follow it carefully and observe where the screws and bolts came from in order not to interchange them.
if you notice an oil spot or a rainbow once you immerse the evaporator in wter, then the leak is in the evaporator.
i hope i was able to FIX your problem
Posted on Aug 10, 2008
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Posted on Jan 02, 2017
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