Hyundai Repair Questions? Ask a Mechanic for Answers ASAP
Hello, I have read through you question regarding the ac system thermistor. I see you have been given wiring diagrams and worked with other experts. What would you like to know?
Ok so the compressor clutch isnt coming on at all, are the cooling fans turning on when you turn on the ac? Are you sure the system has a full charge of freon? WHich engine is in this santa fe?
Ok so now the compressor isnt coming on? A high or low system pressure switch or switch inside for the cabin temperature? When the ac was operating and blowing hot, that says something right there, either a restriction or failed compressor
I read the post, just because the rpms change, doesnt mean the clutch is engaged, there is no 3 way pressure switch, its high or low pressure. id need to know if its an automatic or manual ac system to provide schematic which you already have from the last expert. You have to verify when the ac is on if the clutch is on or not. A set of gauges to check low and high system pressure are needed to check the operation of the compressor.
Im trying to help, sometimes it best to start from scratch. I dont know why you pulled it from the dealer if you already had it there.