What is an EVAP core?
An air conditioner’s evaporator coil, also called the evaporator core, is the part of the system where the refrigerant absorbs heat. That is, it’s where the cold air comes from. As the air conditioner runs, the compressor pulls cold, low-pressure liquid refrigerant through the tubing in the evaporator coil.
How do you test an EVAP core?
To verify if a leak exists, before removing the evaporator, a vacuum test can be performed. Using appropriate flush adapters on the evaporator fittings, pull a vacuum of 28” to 30” Hg. The evaporator should hold vacuum for 30 minutes. If there is a loss of vacuum, verify that the adapters and gauges are not the cause.
Where is the evaporator core located in a car?
The evaporator core, sometime also called an evaporator coil, is a heat exchanger. Located in or near the vehicle’s dash, this part fills with cold liquid refrigerant.
Are there any problems with the evaporator core?
Several problems can devolop with evaporator cores because of these wet-dry-wet-dry conditions. First, the moisture can cause mold and mildew to form. Sometimes this can make for some stinky air. There are products available to kill this mold and clean up the smell, and are found at just about any auto parts store.
What is the name of the evaporator coil?
Touch device users, explore by touch or with swipe gestures. The evaporator core, sometimes called an evaporator coil, exchanges heat to cool the air for the A/C.
How does liquid refrigerant enter the evaporator core?
The evaporator core is a small heat exchanger, much like a radiator. Refrigerant enters the core as a low pressure liquid. Heat in the vehicle passenger compartment causes the liquid refrigerant to boil.
What happens when an evaporator core fails in an auto?
Like most auto parts, evaporator cores sometimes fail. When an evaporator core fails, the result is a loss of refrigerant and a lack of cooling. What is an evaporator core? The evaporator core is a small heat exchanger, much like a radiator. Refrigerant enters the core as a low pressure liquid.
What makes up the core of an AC evaporator?
As warm air passes along the evaporator coils, it collects the heat from the air and makes it cool. The cold air is then circulated through time cabin. Two specific components that make up the evaporator: the core and the coils. When issues occur, in most cases it’s due to leaks created in between these two parts.
Touch device users, explore by touch or with swipe gestures. The evaporator core, sometimes called an evaporator coil, exchanges heat to cool the air for the A/C.
How can you tell if an evaporator core is leaking?
Because we cannot see the evaporator core, knowing if it is leaking can be difficult. We find most leaks with an electronic leak detector. With the system running, we insert the detector’s probe through the evaporator drain. Other times we must turn the system off and continue to check for several minutes to find the leak.