Hi,
If you need to inspect it, the easiest thing to do is remove the front bumper fascia. That way, you'll have full access to it.
On the other hand, if you have installed a dye in the system, if you have a good UV light, you'll be able to see a leak from either through the small openings on the grill or from top or bottom.
I attached the directions for removing the bumper fascia below. I'm not sure if you want to go to that extent, but I figured I would add them, so you have them.
Let me know what you find or if you have questions.
Take care,
Joe
See pics below.
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Wednesday, September 6th, 2023 AT 5:58 PM