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

digital ac unit

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Old Aug 14, 2001 | 11:19 AM
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Default digital ac unit

in my 89 the ac is digital. when i looked in the corvette central catalog i see that there is ac unit for my 89 that is just slide switches can you use this unit instead of the digital unit will it have the same connector??
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Old Aug 14, 2001 | 05:14 PM
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Default Re: digital ac unit (miker61588)

No you can only use the digital unit. The manual unit has different plugs and vacum hoses.
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Old Aug 14, 2001 | 10:51 PM
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Default Re: digital ac unit (Corvette ED)

is it possible to make it manuel from digital????
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Old Aug 14, 2001 | 11:23 PM
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Default Re: digital ac unit (miker61588)

That would be nice, but it seems like it'd be a PITA...
I don't really mind the digital one.........when it works... :rolleyes:
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Old Aug 15, 2001 | 10:05 AM
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Default Re: digital ac unit (miker61588)

it is not practical to go from electronic control to manual control. Most of the problems is not in the control unit, but rather in the programmer, which is located near the brake pedal. To replace the programmer, it costs in the neighborhood of $3-400.00. Usually all the programmer needs is replacement of 2 resistors (49 cents for two at Radio Shack). There used to be a post on how to replace the resistors. I did it, and it took no more than 20 seconds.
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Old Aug 15, 2001 | 10:25 AM
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Default Re: digital ac unit (89 Bob L)

it is not practical to go from electronic control to manual control. Most of the problems is not in the control unit, but rather in the programmer, which is located near the brake pedal. To replace the programmer, it costs in the neighborhood of $3-400.00. Usually all the programmer needs is replacement of 2 resistors (49 cents for two at Radio Shack). There used to be a post on how to replace the resistors. I did it, and it took no more than 20 seconds.
Bob,

Can you tell us how you did it? Mine started flickering a lot more latetly, and sometimes stop working to.

Thanks
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Old Aug 15, 2001 | 10:46 AM
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Default Re: digital ac unit (VQT88Vette)

I bought a new Programmer for my 89 for about $100 from The Last Detail

or this is the link a someone who posted how to fix it http://batee.cc.umr.edu/corvette/AC/...0BOARD/c68.htm
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Old Aug 15, 2001 | 10:11 PM
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Default Re: digital ac unit (-=Jeff=-)

Thank You -=Jeff=-, and Bob
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