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

94 AC Question

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Old Jul 19, 2011 | 10:28 PM
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Default 94 AC Question

When removing the engine, we disconnected all the AC lines ... now want to get some cool air once more ... is the 94 R12 or R134? Is there an easy way to tell from the connectors?

Thanks, Tony
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Old Jul 19, 2011 | 10:51 PM
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The 94 is R134.

The connectors for the high and low pressure fittings should be the new type and a dead giveaway. You almost can't get it wrong. They clamp on, not screw on like the R12 fittings.

I would replace the receiver dryer and any oil if necessary. Vacuum down, check for leaks before adding Freon.

Last edited by pcolt94; Jul 19, 2011 at 10:54 PM.
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Old Jul 19, 2011 | 11:00 PM
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Thanks! Most helpful.
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