Looking for an A/C Compressor Relief Valve
No matter what the weather or temperature is outside, you get to enjoy cool air inside the cabin because of your A/C. If there's a leak somewhere in the compressor or if the unit is damaged, the A/C may not blow cool, conditioned air anymore. Check the compressor to see if it has developed leaks or the A/C compressor valve is busted. The valve regulates the pressure of the refrigerant, so once the valve breaks, you can count on trouble brewing with your air-conditioning system. Inspect and replace the valve as soon as possible before this creates bigger trouble and causes other parts of the A/C to work inefficiently. Here are some things to consider:
Before you buy an A/C compressor relief valve, check the condition of the part first. Some manufacturers offer new OE replacements that are made to match the factory specs and meet the industry requirements. New valves are more likely to last longer and perform better. Some compressor units may already be remanufactured or restored. These parts are inspected for any possible defect and tested to gauge their condition. Some of the mechanisms or components are replaced to make sure that this will function properly and will last. Some parts can also be bought from a scrap or salvage yard. Be careful when buying pre-owned or used parts. They may seem to be in great condition, but some may have hidden defects or a certain degree of wear.
The relief valve should match the OE specs or at least fit the compressor unit. Otherwise, the valve won't be able to control the pressure of the refrigerant and may easily break apart and develop leaks. When shopping around for a valve, see to it that the valve is designed and built according to the year, make, and model of the vehicle. This will guarantee product compatibility and reliable performance.
The valve has to be made of high-grade raw materials, so it can withstand pressure and regulate it effectively. This will also keep the valve from developing leaks. Even when exposed to extreme temperatures and other harsh conditions, the valve should be able to function properly and ensure long service life to prevent causing problems with the rest of the system, including the compressor itself.
Some valves are sold as an assembly, which costs more. Some are offered as just a valve core. Check the item specs, such as the pressure, fit, and the OE part number it replaces, to know exactly what you're getting. The cost of the valve depends largely on the brand, vehicle, and design, among other things. The valve core may cost around 10USD to 25USD. The valve costs over 60USD to as much as 120USD. Typically, you can get a warranty with a coverage of 12,000 miles or 12 months.
Check the compressor and other parts of the cooling system before replacing the relief valve. Aside from the valve, you may have to replace the A/C hose or the compressor unit itself. Some diagnostic tests or thorough inspection will reveal other possible problems with the A/C.