TwinTurbo.NET: Nissan 300ZX forum - Cycling on and off is not a problem with the
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Subject Cycling on and off is not a problem with the
     
Posted by JMartz on September 09, 2019 at 6:59 AM
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In Reply To AC air vent discharp temperatures posted by Metacom on September 07, 2019 at 07:04 PM
     
Message compressor. While several things can cause cycling (which this Nissan DOES NOT DO as a means of controlling high side pressure), poor cooling is often the result of a clogged evaporator. The Z32 has no cabin filter and fibers, bugs, leaves and a few other items make their way into the evaporator box. Oil weeps over time, from the plumbing connections of the expansion valve, that sits in front of the blow face of the evaporator; aid in gluing debris to the evaporator reducing flow through its cold fins.

In GA where humidity is frequently high (45 to 60), I can get a good a/c to discharge at 38F from the center grill at 90F ambient.

     
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