Lexus Troubleshooting Questions? Ask a Lexus Expert
Hi, I'm Chad ,Welcome To JustAnswer, I'm reviewing your question and I will be be posting a replay ASAP
1-the first we need to do is get a set of a/c manifold gauges and hook up to low side port and one to high side port and with car running and a/c on , watch what is the low side reading and high side reading . is the low between 30 & 50 & the high side 150 to 225 and is steady and not climbing ?
2-Have the cabin air filter been checked ?
3- at the time of failure we need to see is the ac compressor cutting off , or inside the dash we have a problem with a blend door actuating and directing air the wrong way and the a/c system is full of Freon and there is no restriction .
4- there is a pressure switch needs checking if the compressor was actually cutting off when the failure happens and that switch is is intermittently doing it
Below is some links for your review
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Thank YouChad FarhatASE Certfied Technician