My AC seems to be improving. I am getting a squeak from the front end. I can't duplicate it by pushing on the front end but when I drive over bumpy roads it's there.
Would be ideal, but not always realistic. A properly working A/C system is designed to drop temperatures about 30 degrees under ambient. That means if it's 100 outside, a 70 degree vent temp would still be working proper. If you can get 50-60 degree vent temps on a 100 degree day, you're way ahead of the game. Some cars can cool more than 30 under, some can't. It depends on the type of car, and how it's system functions.Duct temp in the 40s would be ideal.
I have one of these:Great info. If using probes and such, make sure they are tested accurate. A glass of ice water and a mug of boiling water out of the microwave will establish 0 and 100C accuracy. It should be linear between those points.
My craftsman digital voltmeter has a temp probe and it really sucks. The meritline doohickie blows it away for accuracy.
I don't know with absolute certainty, but the temperature probe on mine is on the passenger side mirror. It seems reasonably accurate, apart from there being a glitch in the software at certain temperatures under which the instrument panel display and the center stack are each 1 degree apart. I wonder if that has to be due to how its converting the temperature input from voltage into degrees Celsius to degrees Fahrenheit. Of course if its been sitting still for a while it can read a bit higher than expected due to the heat being reflected off of the pavement.suss, thanks for the very thorough reading of your car's A/C. much appreciated.
I've also noticed my external temperature reading in my car has been of by at least 8º (over) since my flash 12-5-5. Or are they always not accurate in general?