Having problems with your 2003 GMC Yukon XL ?
Where do I add air conditioning coolant?
\015 Where do I add air conditioning coolant on a 2003 gmc yukon?\015
You have two ports under the hood with plastic caps 1 is usally close to fire wall and the other is torward the front if you find the ac compressor you can follow the lines off that to the ports or schrader valves these can not b mixed up they are two different sizes 1 small 1 big
Repair Help & Product Troubleshooting for 2003 GMC Yukon XL
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