R134a Capacity

[m240b]

I did not record the pressures to be honest. The 53 degrees was at idle. I need to take it on the freeway and see what it puts out while driving.

[JohnHere]

I did not record the pressures to be honest. The 53 degrees was at idle. I need to take it on the freeway and see what it puts out while driving.

Testing at idle doesn't give useful information because the compressor isn't generating much pressure. However, you can check the pressures and center vent temperatures while the vehicle is stationary: Engine at 1,800 RPM, A/C set to "recirc," blower on high, doors and windows open, and the fan(s) should be roaring. Also note the ambient temperature a couple of feet in front of the grille. Record the pressures while the compressor is engaged and not when it cycles off. A run on the freeway will be a good barometer of actual performance.