Ok you fart smellas, uh, I mean smart fellas, someone help a brutha out please.
That means u
@randeez nuts….or anyone that knows anything about automotive a/c.
13 hoe lt with rear air and digital display. Never had a problem with a/c in this thing since new.
Warm air out of front and rear vents, kinda cool but not really. It was a slow decline in coolness, as in, i could tell the air wasn’t as cold as it used to be and now its to the point where its just warmish but not exactly hot.
So, about a month ago i was driving and i noticed some frost, haze, cloudiness coming out of the 2 vents above the radio… still cold tho, got in a few days later when my daughter was driving and noticed it wasnt as cold looked at the temp and she had it on 64 or 65 and medium fan speed so i dumped it down and i still thought it wasn’t as cold as it should be. (Im the only that uses auto in all my vehicles…. In my mind… set it and forget it.. you dont need to lower/raise fan speed or if you’re cold raise temp a few degrees or hot dump it down…)
Didn’t think about it for a week or 2 because temps went back to normal after being hell on earh here in NY for a week in mid June.
Got to look at it last weekend dumped it down to lowest setting, recycled air and fan speed on high doors open …. noticed the high side line past the large nut that goes into the evaporator next to the accumulator was all iced up. I heard compressor kick on then off so I figured i have a small leak (since compressor was coming on and it was still kinda cool). In my garage i had one of those autozone a/c single low side gauges from a buddy that gave me a few cans and some other stuff while cleaning his garage. I hooked it up and it said it was fine (no numbers, just green, blue, yellow and red.)
When compressor was on the gauge went to normal (blue i think) when it cycled off it shot up to red and cycled like that a few times. I have a real set of gauges in my basement but I was being me and being lazy so I haven’t broken them out yet.
This is when i noticed is was cycling quickly… as in every 30-45 seconds it would cycle on/off and then i realized the electric fans weren’t screaming at me like they normally do when its full on hell here and a/c is at its max.
Heres what ive done since then:
-Ordered and replaced the pressure switch
-Cycled the digital display from hot to cold
(on auto and separately for each side) a few times and heat works as it should
-blower motor fan speed is normal and all vents work as they should
-replaced cabin filter
-physically powered on rear seat controls, cycled them and everything works as is it should
-pulled the pigtail off the pressure switch and jumped it to try and get the compressor to go on and stay.. nothing but thats when the electric fans came on full blast…. and with that i gave it a check engine light with reduced engine power and stabilitrac and traction control off msgs but I’ve cleared that and code was something like signal wire bad reading or some crap like that so thats gone.
-and we are dripping condensate… either that or the evaporator is melting from being iced up
So this is where im at.
In a little bit im going to grab my gauges and see what kinda of pressures there are but im thinkn either the rear lines or compressor are starting to go and maybe something is clogging the orifice up by the high side line by the freezing nut..(lol) or something is going on with the e fans….. or maybe im completely off and its the digital control or blend door….
I don’t know… anyone with any insight please clue me in.
Thanks in advance…. Any and all ideas are appreciated