Having problems with your 2004 Nissan XTerra ?
How do charge the a/c? there are 2 ports? wich one do i use?
If you want just to add freon , you need to use port with blue cap(low side) , if caps are not colored then the low side port always smaller then high side in diameter.
Repair Help & Product Troubleshooting for 2004 Nissan XTerra
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