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Old Jul 21, 2017 | 08:28 PM
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Default 94 corvette
how to hotwire my ac compressor to turn on so I can charge my ac system low pressure just changed compressor
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Old Jul 21, 2017 | 08:37 PM
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You might want to have this moved to C4 tech....
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Old Jul 22, 2017 | 12:21 AM
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Originally Posted by frodo84
You might want to have this moved to C4 tech....
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Old Jul 22, 2017 | 01:05 AM
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i don't see why you need to do that. just start filling it up then turn the ac on
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Old Jul 22, 2017 | 11:30 PM
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Moving this to C4 Tech.
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Old Jul 23, 2017 | 08:07 AM
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You can try jumping the low pressure switch to get it to cycle.

Gary
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Old Jul 23, 2017 | 10:46 AM
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Originally Posted by yd328
You can try jumping the low pressure switch to get it to cycle.

Gary


Originally Posted by Big Darrell
how to hotwire my ac compressor to turn on so I can charge my ac system low pressure just changed compressor
Do you have a vacuum pump to evacuate the system?
Need to do this before you charge.
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Old Jul 23, 2017 | 12:52 PM
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Originally Posted by HPS MASTER TECH
i don't see why you need to do that. just start filling it up then turn the ac on
I generally agree with this and would if it is a C60 (manual system).

But the FSM (at least my 92) states:

"The C68 system may disengage the the compressor and set a 09 code (low Freon) fault code during the recharging procedure if the low pressure cycling switch is not bypassed."
Last edited by belairbrian; Jul 23, 2017 at 12:52 PM.
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