I am in no way an expert on this system but this process worked for me on 2 vehicles so proceed at your own risk and don't expect the exact same results!!!
I was fed up with my A/C not blowing cold enough even after the re-program, so I played around last night with very good results. My system was blowing out around 70+ degrees Fahrenheit in max cold and is now setting at 52 degrees.
1. You're gonna need a multimeter with a thermocouple attachment, a can of R-134 with gauge of your choice and a punch or some type of tool like it.
2. Reprogram A/C system as decribed in other threads.
3. Start engine and set your Air to full cold with re-circ fan on, set your thermocouple in the center vents and put the meter on the dash so you can see it through the windshield.
4. Roll windows up and close the doors and watch the temp on the meter. If after about 5 minutes you get high 50s - low 60s Fahrenheit then this won't be worth your time to try. If you get mid 60s and above them proceed to the next step.
5. Attach the can of R-134 to the gauge and find the A/C system cap marked with a "L" ( passenger side above heater core connections ), unscrew the cap and attach the gauge to it. You should be reading somewhere around 45 - 55 psi.
6. Removed the gauge. Wrap a rag or couple paper towels around the punch and carefully push the punch inside the Low port to release some pressure. Reinstall gauge and read the pressure again. Repeat process until the psi reaches around 30 - 35 psi with the compressor running.
7. Remove the gauge and shake the crap out of the can. Follow instructions on can to service system small amounts at a time while monitoring the temperature through the windshield on the multimeter. Be careful not to over service the system or the temp will rise and damage to your system can occur. If this occurs just remove the gauge and release pressure again with the punch.
8. Take your time and monitor all readings frequently or you'll be taking your car to the shop for service. It was a struggle for me to get mine down to 52 degrees but 56 was very easy to reach with patience and a good bit of gas burning through the car. Haha When you reach your desired temp remove all tools and reinstall the Low port plastic cap.
After driving the car and running your A/C for a few days check the psi of the system again to be sure it's still serviced properly. Feel free to message me with any questions or concerns. Good luck!
I was fed up with my A/C not blowing cold enough even after the re-program, so I played around last night with very good results. My system was blowing out around 70+ degrees Fahrenheit in max cold and is now setting at 52 degrees.
1. You're gonna need a multimeter with a thermocouple attachment, a can of R-134 with gauge of your choice and a punch or some type of tool like it.
2. Reprogram A/C system as decribed in other threads.
3. Start engine and set your Air to full cold with re-circ fan on, set your thermocouple in the center vents and put the meter on the dash so you can see it through the windshield.
4. Roll windows up and close the doors and watch the temp on the meter. If after about 5 minutes you get high 50s - low 60s Fahrenheit then this won't be worth your time to try. If you get mid 60s and above them proceed to the next step.
5. Attach the can of R-134 to the gauge and find the A/C system cap marked with a "L" ( passenger side above heater core connections ), unscrew the cap and attach the gauge to it. You should be reading somewhere around 45 - 55 psi.
6. Removed the gauge. Wrap a rag or couple paper towels around the punch and carefully push the punch inside the Low port to release some pressure. Reinstall gauge and read the pressure again. Repeat process until the psi reaches around 30 - 35 psi with the compressor running.
7. Remove the gauge and shake the crap out of the can. Follow instructions on can to service system small amounts at a time while monitoring the temperature through the windshield on the multimeter. Be careful not to over service the system or the temp will rise and damage to your system can occur. If this occurs just remove the gauge and release pressure again with the punch.
8. Take your time and monitor all readings frequently or you'll be taking your car to the shop for service. It was a struggle for me to get mine down to 52 degrees but 56 was very easy to reach with patience and a good bit of gas burning through the car. Haha When you reach your desired temp remove all tools and reinstall the Low port plastic cap.
After driving the car and running your A/C for a few days check the psi of the system again to be sure it's still serviced properly. Feel free to message me with any questions or concerns. Good luck!
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