a/c blowing frost out the vent

Has anybody’s a/c vent blowing out frost out there vent anytime mine’s been doing it when it’s really hot outside

 

Your system is likely slightly undercharged.

 

Could have a plugged drain hole

 

I will check it thanks for the information

 

I will check in that as well thanks for the information

 

Does it eventually stop, then have very reduced airflow?

That's a symptom of an eval icing over. Usually due to a bad thermistor

 

Thanks I will check it as well thanks for the information

 

If the outside humidity is very high and you do not have the AC mode switched to recirculation, you can get frost out the vents.

 

That's cold bro

 

Sitting here wishing mine got that cold lol.

 

My Aunt had a Dodge “R12” of some kind don’t remember the model it was but it blew frost out the vents. They wasn’t anything wrong with it but cold ass air.

The evaporator wasn’t freezing up cause it would do it on a three hundred mile trip and the CFM would never change.

 

Same. My A/C is horrendous when driving around town. It does get much better on the freeway.

 

https://static.nhtsa.gov/odi/tsbs/2019/MC-10166026-9999.pdf

 

https://static.nhtsa.gov/odi/tsbs/2019/MC-10166026-9999.pdf

 

Kicking myself for missing that way back when.

 

You can do it pretty easily yourself though- I ended up doing it because I didn’t want them doing all the work behind my dash that Toyota prescribed. So add your own fan, a simple relay off the battery and a switch in the cab and it’s done and it will work a lot better.

 

https://static.nhtsa.gov/odi/tsbs/2019/MC-10166026-9999.pdf

Wait.. they add a relay block, condenser fan, and assoc. wiring under warranty if applicable?

I live in FL. I need that shit ASAP

 

If you have a 16 - 20.

 

Thank you for the tip. So, is this right, just adding a second fan to the radiator improves my a/c temp?

 

Yes, it’s exactly the same fix Toyota does for that TSB except they go into a lot more trouble to make the fan run automatically whenever your AC compressor is on, but a lot of of us here bypassed all that and just did it ourselves with a relay and a switch.

This is the set I got, I was going to install both but I got lazy and only did the passenger side due to the oil cooler getting in the way. But it works a lot better now with even just one, and I have a spare to use as a replacement or for other things.

https://a.co/d/i9IWZUG