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A/c Compressor clutch not spinning ? system is empty

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Old Jul 5, 2010 | 05:28 PM
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Default A/c Compressor clutch not spinning ? system is empty

my ac system has been empty from the swap. Trying to get it charged today. I noticed when i was adding oil to the system the compressor clutch wasnt spinning. Is that normal ?
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Old Jul 5, 2010 | 06:59 PM
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yes, the pressure switch will keep the system off if there is no refrigerant.
Ryan
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Old Jul 5, 2010 | 07:03 PM
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You'll probably need to jump the clutch straight to the battery in order to charge the system.
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Old Jul 6, 2010 | 06:59 AM
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Originally Posted by fleetmgr
You'll probably need to jump the clutch straight to the battery in order to charge the system.
how do i do that ?
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Old Jul 6, 2010 | 09:15 AM
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two pieces of wire, with alligator clips (go to Radio Shack). Unplug the compressor, attach a wire on each terminal on the compressor, attach the other end to each terminal on the battery. Doesn't matter which is pos and which is neg. Don't let the alligator clips touch each other on the compressor, or you'll get lots of sparks.
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Old Jul 6, 2010 | 09:26 AM
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Originally Posted by fleetmgr
two pieces of wire, with alligator clips (go to Radio Shack). Unplug the compressor, attach a wire on each terminal on the compressor, attach the other end to each terminal on the battery. Doesn't matter which is pos and which is neg. Don't let the alligator clips touch each other on the compressor, or you'll get lots of sparks.

Or you can disconnect the connector from the low pressure switch on the drier and use a paperclip to jump the 2 terminals
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Old Jul 6, 2010 | 09:46 AM
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since the f-car ls1 does not have a low pressure switch on the drier, I am unsure what you would jumper on the f-car ls1 system.

You can use the 2 jumper clip approach, or using tuning software or a tech2, just command the AC clutch relay on.

Ryan
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Old Jul 6, 2010 | 10:48 AM
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low pressure switch on the orfice tube ? I believe its a 3 wire, 1 probably being the ground
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Old Jul 6, 2010 | 10:57 AM
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No, switch on the upstream side of the orifice tube will be the HP transducer.
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Old Jul 6, 2010 | 11:00 AM
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Originally Posted by slow
since the f-car ls1 does not have a low pressure switch on the drier, I am unsure what you would jumper on the f-car ls1 system.

You can use the 2 jumper clip approach, or using tuning software or a tech2, just command the AC clutch relay on.

Ryan
True, but using the Tech2 or tuning software requires a whole lot more investment than 4 alligator clips and a dime's worth of wire.
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Old Jul 6, 2010 | 11:03 AM
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Your approach is fine, and is much cheaper than the tech2 or tuning software.


The jumper the low pressure switch is not on these the f-cars, since there isjust a pressure transducer. Sure ford cars with the low pressure switch as mentioned on the drier is no problem to jumper with a paperclip.

Ryuan
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