S14 AC compressor help (not coming on, its hawt!) - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jt1583 · 06-05-2011, 08:02 PM

I put in a used S14 engine with a compressor that I'm not sure of the history. The engine runs strong and I just installed the low side AC hose and put some freon in.

With the blower on, I click the AC button and it glows green but the clutch stays still and the air stays hot as hell. I push against the valve and fluid blows out so I believe there is a good amount of freon in there and that the low pressure safety switch would allow it to kick on.

I measured the voltage at the single wire coming to the compressor and its around 0.15 volts regardless of the AC switch on or off. I did notice a 4 wire plug coming off an AC related metal cylinder on the passenger side near the battery, that doesn't go to anything. Is this hooked up in the KA?

thanks for any help

06-05-2011, 08:02 PM	#1
jt1583 Zilvia Member Join Date: Jul 2005 Location: Georgia Age: 37 Posts: 264 Trader Rating: (3) Feedback Score: 3 reviews	S14 AC compressor help (not coming on, its hawt!) I put in a used S14 engine with a compressor that I'm not sure of the history. The engine runs strong and I just installed the low side AC hose and put some freon in. With the blower on, I click the AC button and it glows green but the clutch stays still and the air stays hot as hell. I push against the valve and fluid blows out so I believe there is a good amount of freon in there and that the low pressure safety switch would allow it to kick on. I measured the voltage at the single wire coming to the compressor and its around 0.15 volts regardless of the AC switch on or off. I did notice a 4 wire plug coming off an AC related metal cylinder on the passenger side near the battery, that doesn't go to anything. Is this hooked up in the KA? thanks for any help