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

96 C4: HVAC Temperture Control

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Old Oct 21, 2008 | 10:01 PM
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Default 96 C4: HVAC Temperture Control

I have a 96, and the heater temperature control only seems to blow hot air at 85 - 90 digital settings. It's like all or none, and it can not be controlled at the lower temperture. Blower fan works fine.

I would have thought the vent door motor malfunction, but in does go hot and cold. It just does not seem there is any control between.

Any ideas?
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Old Oct 21, 2008 | 10:11 PM
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Oh, and I have no fault codes other than a catalytic convertor.
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Old Oct 22, 2008 | 02:17 PM
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Default HVAC Hot control

My Dad had an electronic controlled A/C Buick with your symptoms. It was the outside air temperature sensor. On your Corvette it's located on the passenger side and low/front of the radiator. Actually a thermistor. They do go bad and sometimes get disconnected.
Good luck and hope this helps.
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Old Oct 24, 2008 | 06:28 PM
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Thank IRAraid,

I will research it. I bought this car for my daughter 7 years ago. When she gets back in town ,I will check it out.
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Old Oct 24, 2008 | 07:38 PM
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Originally Posted by foosman5
Thank IRAraid,

I will research it. I bought this car for my daughter 7 years ago. When she gets back in town ,I will check it out.
Wow, nice father!!
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