Review on 🌬️ ACDelco 15-51289 GM Original Equipment Air Conditioning Refrigerant Pressure Sensor - Grey & Silver, 4 Inch: Efficient Cooling Solution by Julius Hunter

First of all I'm too old and fat for my girlfriend and her mother looked at me disapprovingly. The air conditioning in her Olds Alero hadn't worked for many years and we had a hot spell. I offered her to take a look as I had the tools and was lucky with my own AC and some friends cars. I downloaded the system schematic from the Alero World website or elsewhere so as not to fly blind. I hooked up my pressure gauge and checked if there was pressure in the system. I checked with a meter that the A/C relay is getting power and that the clutch isn't open. I disconnected the compressor relay to make sure the compressor turns on and builds pressure. I then connected a 10K potentiometer to the pressure sensor connector and used it to simulate a pressure sensor. The car's ECU then powered the compressor and condenser fan, so I figured I found the problem. Two days later I had the item and installed it. The connector on this car (Alero 2002) has a Schrader valve that closes to prevent refrigerant from escaping when the sensor is removed. The air conditioning then worked as expected. I used the R134a temp/pressure chart and added some refrigerant to get the high and low pressure readings to match the chart. I'm sure the HVAC pros will roll their eyes lol. But, but at least I'm reading both sides of the system and the ambient temperature, right? Long story, even longer: Alero and I are both cool in my girlfriend's mom's book.