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2006 350z ac issue

Old 01-10-2019, 07:41 AM
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ghettoscrubs
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Default 2006 350z ac issue

it only happens sometimes but when i turn my ac on a little bit it will go full blast and in the middle it will go low then high again. I just replaced my serpentine belt but if i need to relplace the other one to fix the ac will someone let me know?
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Old 01-10-2019, 09:38 AM
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icer5160
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This is normal behavior if the AC Fan Speed **** is in the "AUTO" position (Or 1 rotation click from the off position). If you're saying the fan speed intermittently changes when using the manual speed selections, I suspect the problem is with the AC control unit in the dash (the board with all the control ***** on it). You can find these on ebay for relatively cheap.
-Icer
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Old 01-10-2019, 01:07 PM
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dkmura
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Welcome- Just a bit of detail to add to Icer5160's post. The "auto" setting is automatic temperature control. Using this will allow the fan to go up or down as needed to maintain a desired temp setting. This system may be operating in other settings if the HVAC control unit (a small rectangular white box behind the lower center stack *****) is malfunctioning. There's no real way to test this unit that I know of- you usually just replace it with another OEM unit and see if the symptoms go away.
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Old 01-10-2019, 09:26 PM
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mr. sparco
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Sometimes it is the waterfall not being installed perfectly or the radio is screwed in too tightly distorting the surrounding frame especially on aftermarket stereos. It will at times cause the AC to turn on randomly as well.
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