AC 20 degrees warmer on passenger side

[MojaveJoe]

My AC has stopped blowing equally cold air on the passenger side, by 20 degrees warmer. The air flow seems slightly less too. On top of that at 100F outside it can freeze up in 30 minutes, and stop blowing almost completely. Running only the fan for 30 minutes will thaw it out and improve airflow back to not normal levels described earlier.

Any suggestions what I should check?

 

[Kday]

You are low on refrigerant. Mine did the same thing, went and bought a cheap gauge and filled it to the recommended psi for your ambient temp. She has been blowing cold for the last 4 mo. Good luck.