A/C Low Side Charging Adapter by gpd®. Location: Low Side Service Valve. The electrical switch is designed to give feedback to the engine management system. The ECM controls the A/C system on modern vehicles. In earlier vehicles, they are used to directly turn the compressor off to avoid compressor failure.
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Expansion Valve o-Rings
These expansion valve o-rings are perfect for my 2016 Promaster City.
I lubed them with some PAG oil and they seal nicely. If you are going to change the expansion valve, you would be doing yourself a favor to change the o-rings also.
A great buy, thanks!