[diygeo]

Better late than never – I forgot to let you all know what the problem was. It turns out the connector was bad. While I was measuring voltage on the wire, it was not making it to the compressor. I figured this out when I went to measure resistance on the coil. I measured 2.5 ohms direct on the compressor, but open on the wires – that’s when I checked the connector. I reseated the rubber gasket in the connector, pushed it firmly into the compressor, then it worked! I didn’t replace the connector, but I may do that if it fails again.

[diygeo]

Better late than never – I forgot to let you all know what the problem was. It turns out the connector was bad. While I was measuring voltage on the wire, it was not making it to the compressor. I figured this out when I went to measure resistance on the coil. I measured 2.5 ohms direct on the compressor, but open on the wires – that’s when I checked the connector. I reseated the rubber gasket in the connector, pushed it firmly into the compressor, then it worked! I didn’t replace the connector, but I may do that if it fails again.

[diygeo]

I’m currently out of town – will provide you an update on coil resistance and clutch engagement when I’m back. Thanks for all the help/suggestions everyone!

[diygeo]

I rechecked the voltages to see if the diode was bad. To measure, I disconnected the connector from the compressor, then measured across the connector (Dark Green wire and Black wire)_x000D_
Voltage was ~0V for any AC switch setting, until engine was running. I

[diygeo]

Quoted From dreamer2355: _x000D_
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Was the A/C clutch already installed on the new compressor?_x000D_
_x000D_
Did you try to jumper the pressure switch to see if the compressor engages?

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I installed a clutch/compressor assembly._x000D_
I measured syste

[diygeo]

[quote]Quoted From johnbkobb: _x000D_
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Compressors do not always come without oil. Check the compressor you are putting in to see if it already has oil. Turn the shaft by hand a few times before installing to get the oil lubricating it good before it i

[diygeo]

[quote]Quoted From johnbkobb:_x000D_
_x000D_
If you are replacing the compressor I can only assume that it is because of a catastrophic failure, in which case you should do a complete flush of the system and refill with all new oil or you risk destroying the n

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