C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

A/C problems

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Old Aug 3, 2004 | 06:27 AM
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Default A/C problems

When i got my car back from getting the Procharger installed...the AC worked..i remember using it that day i got it back and it was ice cold...Now, no matter how i set the temp, wether its 90 degrees or 60 degrees it blows the same tempeture air...The accumulator was replaced during the install...Any ideas?
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Old Aug 3, 2004 | 10:11 AM
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SunCR is the resident AC expert here, but I will chime in.

Really need some more information.

Is the AC compressor clutch engauging (cycling) at all?
Do you have electronic AC controls? Is the light on the electronic control flashing (code set)?
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Old Aug 3, 2004 | 10:14 AM
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Yea it cycles, its electronic control...all the functions work, its just no matter what tempeture i put it on...the air remains the same temp...
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Old Aug 3, 2004 | 12:56 PM
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Remove the blower control module on the evaporator housing (top left side) and look inside. There is a door, controlled by an electric motor, that controls air flow between the heater and evaporator core. See if it moves as the controls are cycled between 60 and 90 degrees. If not, either the motor, the linkage between the motor and the door, or the programmer/wiring - which sends the signals to the motor for your year - are the culprit.
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