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Jun 20, 2012 | 04:08 PM

yamiken1

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From: Hawaii

Need ac help

My 1994 gs300 ac been giving me intermittent problems. The compressor clutch keeps kicking on and off rapidly intermittently. I can feel it jerking when I drive. The compressor has been replaced and recharged to correct specs. But the problem still exist. Becuase it's intermittent I am unable to dg what is wrong. Has anyone ran into a problem like this? Ecu has been checked by a company that rebuilds them. Nothing wrong with ac circuit. So I was told. Any suggestion? High press switch going bad? Ac amplifier? Ac control unit? Thanks!

Jun 20, 2012 | 04:10 PM

yamiken1

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Forgot to add, the ac starts to blow warm sometimes when ac clicking on and off. Sometimes it will click back on and stay on. Other times it won't till I shut it off then turn it on later.

Jun 20, 2012 | 04:23 PM

2GSC300

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My suggestion would be to put the gauges on it and check for leaks in the system.

Jun 20, 2012 | 06:22 PM

yamiken1

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I put gauges on it and pressures normal. When I changed the compressor and drier I evacuated the system and it held 30" for 30-40 mins. Then filled in freon. So no leaks.

Jun 23, 2012 | 05:42 AM

2GSC300

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Check your relays. I have to change my condesor/rad fan relay today. My AC is blowing hot/cold. You may have a compressor relay or fan relay going out.

Jun 23, 2012 | 01:59 PM

slammd_gs3

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U maybe having a problem with the control head. Sometimes my ac switch blinks and compressor turns off under acceleration.

Jun 24, 2012 | 03:00 AM

yamiken1

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2gsc300-Ok. Will try replacing relays. But I swapped the ac magnetic clutch relay with the ign one since its the same part number. No difference.
Slammd_gs3- I used to have a blinking ac light when the ac would shut off. Now it shuts on/off but ac light stays on. I wonder if it is the ac control unit going bad. Did that fix your problem?

Thanks for all your input. It is greatly appreciated!!