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AC Diagnosis Help

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Old 08-04-2009, 08:09 AM
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AC Diagnosis Help

On my 93' Pickup, the AC clutch is not engaging. I decided this morning to take apart the dash to see if there was a loose connection from when I had a remote start installed. Found nothing out of the ordinary.

Where else should I look? There was a point when it would work perfectly, but I can seem to pin point when it stopped working because I didn't use it all taht much.

The light on the switch turns on, but seems that there's no juice to the clutch.

Any and all help appreciated, its HOT.
Old 08-06-2009, 07:58 PM
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you got the schematic I assume? there has to be a relay right guys? Are you telling us it is electrical or mechanical? should be able to check a voltage at the relay or at the clutch at the right time to see if power is there. Fuse?

you seem to already have it narrowed down to the ac clutch but need to give us more to go on there...

You are where?

Frankly I think A/C shops are underpaid and worth their weight in gold. You drive in they listen to it and tell you exactly what it is and what it costs and they guarantee their work...

keep the info coming and we'll help you talk this out

and this is under-read section so take it over to your year Truck tech for more of us to respond. I'm no mechanic.
Old 08-06-2009, 08:22 PM
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Do You have refrigirent? Did it leak out some where? If it did or its below spesified pressure in the low side it will cut out power to the comprerssor clutch.
Old 08-07-2009, 01:55 PM
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Thanks for the replies.

I'm in CT.

I was hoping there was some hidden fuse somewhere, but I haven't found or heard of one.

I'll be honest, I'm not sure if there is refrigerant in there, how can I tell?

I'd be all about bringing it somewhere, but I'm a DIY guy!
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