hire a EPA certified HVAC technician. federal law requires anyone handling refrigerants to be EPA certified.
Depends entirely on problem: Simple recharge approx. $75-10 Complete replacement of compressor, evaporator, condensor, drier approx. $1,200-1,600
An overcharged condensor will run poorly. It will have a higher discharge temperature, high condensor subcooling, higher condensor splits and a high compression ratio.
Your air conditioning condensor is located in front of your radiator
You sure can. Just be careful to follow the directions closely and not overcharge your system. Watch for condensation (sweating) on the low pressure tube leading back to the compressor (do not touch the hot tube coming out of the compressor towards the radiator/condensor coil), and when it is cold and sweating, you have enough R-134a in the system.
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condensor
on a 1999 gmc 1500 suburban 5.7 l where is the ac condensor
Recharge
It depends on what you want to do with the sytem. If it is and older condensor contact the supplier and ask for specifications on what the condensor does in 410A. It only depends on the different pressures in the system en the condensoing capacity at R410A.
You can do online recharge. Also, you can use the facility of SMS Recharge and Call 'n' Recharge (First time in India)
find the high pressure port on top of a metallic condensor high in the engine compartment on the passenger side behind the engine - look behind and below against the firewall - you'll see another port - that's it