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AC low pressure fill... WHERE IS IT? NBS

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Old 08-10-2007, 07:46 PM
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Default AC low pressure fill... WHERE IS IT? NBS

I can't find the low pressure fill to refill my AC. Have the system drained and got a vacuum on it but can't find the fill. Its a 03 suburban with rear air. I bet it will be the same place as any NBS truck. Let me know please...
Old 08-10-2007, 08:23 PM
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Originally Posted by MeticulousFab
I can't find the low pressure fill to refill my AC. Have the system drained and got a vacuum on it but can't find the fill. Its a 03 suburban with rear air. I bet it will be the same place as any NBS truck. Let me know please...
Itll use the same hi and lo schraders under the hood
Old 08-13-2007, 01:37 PM
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check the compressor inlet, thats the low pressure side and typically where refrigerant is added, good luck
Old 08-13-2007, 02:10 PM
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I don't have a picture and my truck is across town, but isn't it on the accumulator?
Old 08-13-2007, 02:27 PM
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our problem was the hose we were using to fill it was bad so i thought we might have been using the wrong port. got it all figured out but my ac still sucks... might have something to do with my knocking AC compressor...
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