es300mia Posted March 18, 2005 Share Posted March 18, 2005 was driving home today when the a/c light started blinking intermetintly, the blower was still working but air was not cold, i tried pushing the button but it did nothing, light went solid again and air got cold , then a few minutes later it failed again and light stayed blinking. How do I fix this? I'm going to check the refrigerant levels to make sure its not a low pressure switch. What else Thanks, Mike Quote Link to comment Share on other sites More sharing options...
ArmyofOne Posted March 18, 2005 Share Posted March 18, 2005 was driving home today when the a/c light started blinking intermetintly, the blower was still working but air was not cold, i tried pushing the button but it did nothing, light went solid again and air got cold , then a few minutes later it failed again and light stayed blinking. How do I fix this? I'm going to check the refrigerant levels to make sure its not a low pressure switch. What else Thanks, Mike ← possibly the belt. if the serpentine belt slips, the light will blink. this belt powers your A/C and alternator. ( i think your power steering is a separate belt...depends on year). it may work fine for the load the alternator puts on it. but as soon as you turn on your A/C, the belt slips. its very easy, takes 15 mins to change it if you have never even picked up a wrench before. Quote Link to comment Share on other sites More sharing options...
cruznroadking Posted March 18, 2005 Share Posted March 18, 2005 Check if the refrigerant is low. Turn a/c on to max cold & check for air bubbles in sight glass under the hood in the front of the engine area. On 1st generation ES's a plugged or malfunctioning expansion valve was common. The valve is located behind the dash & attached to the evaporator. Quote Link to comment Share on other sites More sharing options...
SKperformance Posted March 18, 2005 Share Posted March 18, 2005 your first post and you didn't read the FAQ before hand a blinking a/c light meand COMPRESSOR LOCK UP Quote Link to comment Share on other sites More sharing options...
cruznroadking Posted March 18, 2005 Share Posted March 18, 2005 Sorry, left this out. I know you own a 2nd generation ES but just wanted to throw some ideas out you. Quote Link to comment Share on other sites More sharing options...
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