Posts Tagged: car ac not blowing cold
Auto AC Evaporator Cost and Replacement Guide
How an Auto AC Evaporator Works and How Much Evaporator Replacement Costs Quick Summary The evaporator sits behind the dash and receives high-pressure liquid refrigerant. An orifice tube or expansion valve releases the liquid refrigerant into the evaporator, causing it to absorb heat and change from liquid to vapor. During that process, the evaporator removes heat from the air as it passes across its fins. In other words, the evaporator doesn’t create cold; it simply removes heat, leaving you with cool, dry air. The most common failures I see are … Read More
AC Fully Charged But Not Cold? The Most Common Causes
How Moisture and Air Contamination Destroy AC Performance Quick Summary If your car’s AC is fully charged but not cold, adding more refrigerant is almost never the answer. In my experience diagnosing automotive air conditioning systems, the most common causes are; • Air or moisture contamination • A clogged expansion valve or orifice tube • A failing compressor • A restricted condenser • Cooling fan problems • Blend door issues inside the HVAC housing. The key is understanding that refrigerant charge is only one part of the system. A properly … Read More