How to replace an evaporator

Bad cooling performance and refrigerant leaks are common issues that can hinder the efficient operation of automotive air conditioning systems. In this video, we use Nissan sylphy evaporator as an example to demonstrate how to replace the AC evaporator, ensuring a cooler and more comfortable temperature inside your vehicle. Learn the step-by-step process to enhance the performance of your air conditioning system and beat the heat.

First, disassemble the components below the dashboard and remove the evaporator assembly before starting to dismantle the old evaporator. The entire process requires careful handling to avoid damaging other parts, as there are many delicate components and circuits surrounding the evaporator. Each screw and connector must be removed one by one to prevent damage to other components. Once the assembly is disassembled, we can observe that the evaporator has aged due to long-term use, resulting in dirt accumulation and refrigerant leaks, which can cause unpleasant odors and inadequate cooling in the air conditioning system.

Next, we proceed with the replacement of the new evaporator. Firstly, it is important to ensure that the connections and dimensions of the new and old evaporators are compatible。Then we need to check the performing of airtightness. The water leak test is a commonly used method in automotive air conditioning repair to detect potential evaporator leaks. Installing the new evaporator requires proper alignment, secure fixing, and connecting the pipelines to ensure a correct installation. When installing screws, caution should be exercised to avoid overtightening or loosening. Finally, it is necessary to check all connections and fixings for proper placement before reassembling the evaporator back into its original position. After replacing the evaporator, the outlet temperature measures 6.6 degrees Celsius (43.88 degrees Fahrenheit), compared to 13.2 degrees Celsius (55.76 degrees Fahrenheit) prior to replacement.