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shortboxin · 06-11-2020, 07:42 AM

Going to throw this out there...

On another site a week ago, I was asked what orifice tube I was using. Just this morning while pondering this, I wondered if this could be the root of the problem. While I'm using the original style white orifice tube, maybe the Sanden small displacement compressor can't keep up?

Let's say initial balanced pressure is 225PSI and I switch the AC on. Compressor drops low side a bit and increases high side. As I stated, the low side never drops below 90PSI, so the compressor never turns off. Is it possible that the orifice tube opening is too large and allows too much flow for the compressor?

Please chime in. Thank you.

06-11-2020, 07:42 AM	#12
shortboxin Registered User Join Date: Jan 2019 Location: Mesa Posts: 37	Re: A/C issues on 84 C10 with 5.3 LS Going to throw this out there... On another site a week ago, I was asked what orifice tube I was using. Just this morning while pondering this, I wondered if this could be the root of the problem. While I'm using the original style white orifice tube, maybe the Sanden small displacement compressor can't keep up? Let's say initial balanced pressure is 225PSI and I switch the AC on. Compressor drops low side a bit and increases high side. As I stated, the low side never drops below 90PSI, so the compressor never turns off. Is it possible that the orifice tube opening is too large and allows too much flow for the compressor? Please chime in. Thank you.