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Originally Posted by se2bsw
Hi hot thanks for the feedback, i now know were to put the free on..the fitting closest to the firewall, which today i checked for freeon, and there was nothing. My understanding is that the ac compressor(clutch) WONT run unless there freeon in the system.i was skepticle at first butafter a few test were the guy took the black "power" wire of the switch on the tank and shorted it out, the compressor clutch actually worked!. he did this twice, and both times it worked. if you put the wire back on the tank the compressor did nothing. just wanted to confirm this is actually the way the compressor will come on, with freeon only in. tvm in advance.
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That is right; it will usually turn the compressor on if you jump the low side switch. You are also right to not run it without refrigerant. The "Freon" is what circulates the oil and if it does not circulate, you will kill the compressor.
If the system is empty, you must have a leak that you need to locate and repair. You can inject a can of R-134a with dye, to help you find the leak. You still need to evacuate the system after the leak has been repaired. Also, this would be a good time to install a new drier and orifice/screen.
Do it right the first time, or you will pay for it later!
