DannyW
Senior Member
The a/c in my 4Runner cools okay…could be better, but I have had worse. But I think there is an issue that needs to be addressed.
On a typical 90 degree day, my a/c will blow 46-47 degree air…I have measured it about 4 inches in the vent with an accurate thermometer (Thermapen). When I press the RECIRCULATION button, the air cools even further, about 2-3 degrees cooler.
Bu with the recirculation ON, the a/c will cool at 45 degrees for 5-7 seconds, and then the compressor switches off and the air warms by 5-6 degrees. It stays that way for maybe 5 seconds and then the compressor clicks back on and sends 45 degree air again for a few seconds and then switches off again.
It does this constantly…max cool for a few seconds, then off for a few seconds, and then back on again.
This constant on-off-on-off-on-off worries me. I checked my wife’s car and her a/c does not do this. And it only seems to happen on my car when using the recirculation button.
To be clear…I am not concerned about the temperature of the air from the a/c. I am more concerned about the constant switching on and off, especially on long trips where it does it for hours at a time. Intuitively, I think constant cycling could stress the compressor and cause failure.
Is this an issue that I should be concerned about? Any idea of what may be causing it and how to fix it?
On a typical 90 degree day, my a/c will blow 46-47 degree air…I have measured it about 4 inches in the vent with an accurate thermometer (Thermapen). When I press the RECIRCULATION button, the air cools even further, about 2-3 degrees cooler.
Bu with the recirculation ON, the a/c will cool at 45 degrees for 5-7 seconds, and then the compressor switches off and the air warms by 5-6 degrees. It stays that way for maybe 5 seconds and then the compressor clicks back on and sends 45 degree air again for a few seconds and then switches off again.
It does this constantly…max cool for a few seconds, then off for a few seconds, and then back on again.
This constant on-off-on-off-on-off worries me. I checked my wife’s car and her a/c does not do this. And it only seems to happen on my car when using the recirculation button.
To be clear…I am not concerned about the temperature of the air from the a/c. I am more concerned about the constant switching on and off, especially on long trips where it does it for hours at a time. Intuitively, I think constant cycling could stress the compressor and cause failure.
Is this an issue that I should be concerned about? Any idea of what may be causing it and how to fix it?