Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Good Morning and welcome to just answers my name is Ricardo. can you tell me the pressures on the low and hi side, how many ounces of Freon did you charge it to.
OK if the pressure is the same on both then the problem is the compressor not pressurizing the Hi side ( liquid side) to turn it in to gas on the low side
the compressor is there to compress Freon gas in to liquid therefore the liquid side should be hi 150 to 200 and the low side should be 20 to 30 pounds on gas
if you have equal pressure then your compressor is not compressing or not turning the clutch on?
is the clutch engaging?
then the compressor is not good
did you put the Freon with the can upside up or down?
did you put it on the low side?
upside down goes in as liquid...upside up goes in as gas low side should have been upside up.
putting the can upside down forces the compressor to compress liquid when it can only compress gas
yes the valve probably when bad.
when installing a new compressor make sure you put PAG oil at least one once, and if charging through the low side (gas side) put the can upside up this will take a little longer but will not damage the compressor.
as you put the new can the low pressure switch will sense gas low and force the compressor to turn on this will suck the rest on the can.
one best way to get an effective system cold is by pulling a 15 minute vacuum to the system before adding Freon . this will remove excess water and contaminants and will make good room for the new Freon to work effectively.
Napa auto parts will rent you a vacuum pump for this job.
very good let me know if you need more information and help thank you.