Long story short, I had my evaporator replaced last month before the heat waves hit, due to the infamous evap failure on 11-12 MY trucks. When it came back, it blew ice cold and smiles for miles. Now, its 106 outside, and the truck seems like it takes a long wile to cool down, even with the fan on high....I can feel the clutch kick in for 20 seconds and then off for 15 seconds, even when going down the freeway where there should be more than sufficient airflow through the condensor. It seems that sometimes itll blow ice cold, other times just faintly cold...I don't understand? I would hate for there to be another freon leak somewhere..I changed the evap and the Schrader valves this year, both leaked.
I always run the truck on high ac fresh air for a few minutes when I first get in to purge the hot air then switch to max ac and stay there indefinitely. Even in max ac, the compressor cycles when its hot both outside and inside. Anyone else's truck behave like this?...This truck has had no ac longer than it's had ac, so I couldn't really compare to what it did last summer. (it went out and I never fixed).
I would figure that if the system is charged correctly the compressor has no reason to cycle off at freeway speeds with sufficient airflow through the condensor (rad stack is clean) and max fan on the evap. Right?...I really don't wanna find out I have another refrigerant leak somewhere...
I always run the truck on high ac fresh air for a few minutes when I first get in to purge the hot air then switch to max ac and stay there indefinitely. Even in max ac, the compressor cycles when its hot both outside and inside. Anyone else's truck behave like this?...This truck has had no ac longer than it's had ac, so I couldn't really compare to what it did last summer. (it went out and I never fixed).
I would figure that if the system is charged correctly the compressor has no reason to cycle off at freeway speeds with sufficient airflow through the condensor (rad stack is clean) and max fan on the evap. Right?...I really don't wanna find out I have another refrigerant leak somewhere...