Great video Scotty, not sure how I missed this one but very informative, like a refrigeration lesson lol. Been a while but I did quite a bit of this in the past. Amazing that Vevor makes all this equipment. Well done !
Since you knew there was a leak (no pressure in the system) and there appeared to be no leak when your manifold gauges were hooked up, this would seem to indicate that one or both of your Schraeder valves were leaking, since these are bypassed when the manifold gauges are connected. You might want to check if there is any leakage there and if there is, then with the right device, you can replace those valves without losing your refrigerant.
That's good advise. I believe that Vevor gauge kit came with a cheap refrigerant detector. I may take the caps off and see if it beeps. I have seen those Schraeder valve replacement tools and may pick one up.
Hello! Chevrolet Volt 2017. After trying to recharge the air conditioner, the AC compressor does not start. The GSD2 scanner shows errors P1E00 and P0534. A/C Permission Data: Ambient Air Temperature (Filtered) = 29 °C A/C Low Side Pressure Sensor = 696 kPa A/C High Side Pressure Sensor - from 0 to 14 kPa A/C Compressor Clutch Inhibit Reason: "High Side Pressure Out of Range" What could be the problem? Could the pressure on the low pressure side be around 700 kPa and on the high pressure side 0 kPa? Should the pressure equalize when the air conditioning compressor is turned off? Or not? There is no leak. The sensors are OK. Thanks in advance!
When your AC compressor is off, like I showed at 24:27, the low side could be about 100 psi (or 700 kPa), and you should still have a little pressure in your high side. Once you start the car and run the AC, the low side pressure should come down to around 40 psi (275 kPa) and the high side should go up over 200 psi (1380 kPa). Since you are only building pressure on the low side, you could have a blockage in your evaporator or a faulty AC expansion valve. Or it could also be the compressor is not getting enabled. I believe on the Volt, the electric compressor is operated by the BECM? I believe there was a service bulletin on the BECM for all Gen2 volts. I had mine replaced last year.
@@FixItScotty Thanks for the answer! In my case the AC Compressor does not start due to low pressure on the high pressure side. Before starting the air conditioner, did you supply refrigerant from the high pressure side or did you supply refrigerant only from the low pressure side?
@@ВалерийВербивский I only supplied refrigerant to the LOW side WHILE the compressor is running. Never charge the system with it off. You may be able to take your car to the dealership or service place to have them recover or pull out the refrigerant and confirm the compressor works. Then you can follow the steps in my video to do a complete charge.
Was that can of refrigerant with stop leak safe for high voltage electric/hybrid ac compressors? I hope I'm wrong but I think you might have contaminated your ac system and made it conductive, which can cause problems with internal shorts in the high voltage electric compressor , or high voltage isolation issues.
I have heard of special non-conductive coolant for EV motors or batteries. But I have never heard of restrictions on refrigerant for electric AC compressors, or of the possibility of the refrigerant causing a short. If you have a link or something that mentions this, let me know.
@@FixItScotty It is in the service manual. The compressor oil must be non-conductive by using POE oil. The manual has a warning about flushing all equipment before attaching to the Volt. It also has a warning about PAG oil, which is conductive. The volt has an electric compressor.
@@sheetzke You are correct. This compressor uses POE not PAG. I didn't touch the oil; that is separate from the refrigerant. That is added separately if needed - typically when changing parts of the AC system. Even when pulling a vacuum, the oil will stay in the system.
Great video Scotty, not sure how I missed this one but very informative, like a refrigeration lesson lol. Been a while but I did quite a bit of this in the past. Amazing that Vevor makes all this equipment. Well done !
Since you knew there was a leak (no pressure in the system) and there appeared to be no leak when your manifold gauges were hooked up, this would seem to indicate that one or both of your Schraeder valves were leaking, since these are bypassed when the manifold gauges are connected. You might want to check if there is any leakage there and if there is, then with the right device, you can replace those valves without losing your refrigerant.
That's good advise. I believe that Vevor gauge kit came with a cheap refrigerant detector. I may take the caps off and see if it beeps. I have seen those Schraeder valve replacement tools and may pick one up.
Hello!
Chevrolet Volt 2017.
After trying to recharge the air conditioner, the AC compressor does not start.
The GSD2 scanner shows errors P1E00 and P0534.
A/C Permission Data:
Ambient Air Temperature (Filtered) = 29 °C
A/C Low Side Pressure Sensor = 696 kPa
A/C High Side Pressure Sensor - from 0 to 14 kPa
A/C Compressor Clutch Inhibit Reason: "High Side Pressure Out of Range"
What could be the problem?
Could the pressure on the low pressure side be around 700 kPa and on the high pressure side 0 kPa?
Should the pressure equalize when the air conditioning compressor is turned off? Or not?
There is no leak. The sensors are OK.
Thanks in advance!
When your AC compressor is off, like I showed at 24:27, the low side could be about 100 psi (or 700 kPa), and you should still have a little pressure in your high side. Once you start the car and run the AC, the low side pressure should come down to around 40 psi (275 kPa) and the high side should go up over 200 psi (1380 kPa). Since you are only building pressure on the low side, you could have a blockage in your evaporator or a faulty AC expansion valve. Or it could also be the compressor is not getting enabled. I believe on the Volt, the electric compressor is operated by the BECM? I believe there was a service bulletin on the BECM for all Gen2 volts. I had mine replaced last year.
@@FixItScotty Thanks for the answer!
In my case the AC Compressor does not start due to low pressure on the high pressure side.
Before starting the air conditioner, did you supply refrigerant from the high pressure side or did you supply refrigerant only from the low pressure side?
@@ВалерийВербивский I only supplied refrigerant to the LOW side WHILE the compressor is running. Never charge the system with it off. You may be able to take your car to the dealership or service place to have them recover or pull out the refrigerant and confirm the compressor works. Then you can follow the steps in my video to do a complete charge.
Was that can of refrigerant with stop leak safe for high voltage electric/hybrid ac compressors? I hope I'm wrong but I think you might have contaminated your ac system and made it conductive, which can cause problems with internal shorts in the high voltage electric compressor , or high voltage isolation issues.
I have heard of special non-conductive coolant for EV motors or batteries. But I have never heard of restrictions on refrigerant for electric AC compressors, or of the possibility of the refrigerant causing a short. If you have a link or something that mentions this, let me know.
@@FixItScotty It is in the service manual. The compressor oil must be non-conductive by using POE oil. The manual has a warning about flushing all equipment before attaching to the Volt. It also has a warning about PAG oil, which is conductive. The volt has an electric compressor.
@@sheetzke You are correct. This compressor uses POE not PAG. I didn't touch the oil; that is separate from the refrigerant. That is added separately if needed - typically when changing parts of the AC system. Even when pulling a vacuum, the oil will stay in the system.
good info. thanks!
Thanks! Out of curiosity, are you planning on using the Volt AC compressor in your Porsche conversion?
@@FixItScotty not planning on it. I guess that could change but don't have one