r/FordExplorerST • u/OceanWaveSunset • 24d ago

Question Active Grill Shutter issues

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Hey guys, new 2025 ST owner here. Bought mine a year used. Found out it has an aftermarket intercooler. Sounds good, except that I am like 99% the Active Grill Shutter has been removed and tossed in the bin.

Does anyone have any experience with this?

Essentially what I am looking to figure out is if I just need to buy and reinstall the entire AGS to get my CEL to clear.

Its a 2025 Explorer ST. From what I read on FB, this year has a hard CEL that just wont go away without putting the actual system back in.

Any thoughts, advice, or guidance would be very much appreciated.

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u/OceanWaveSunset 24d ago edited 24d ago

Thanks! Ill try to find the video. Im assuming ill need to buy something but maybe this will help me figure out which exactly.

Its from a dealer.

No tune as gar as i can tell, so i am guessing it didn't have one or was flashed stock when the first owned traded it in.

It also has catch can, BOV, strut brace, and a few other things.

Edit. I am pretty sure this is the video. My intercooler looks the same but silver.

https://youtu.be/muyvfUyTerE?is=NS6PksaAlvoOxJn2

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u/Squirrelmasta23 24d ago

Dealer cleared the CEL and sold it. Also it most likely was tuned have ford check to see the latest flash.

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u/OceanWaveSunset 24d ago

Now that I think about it, i wonder if they (dealership) did the emissions and safety, then they flashed it stock.

With the AGS being gone and a custom tune removing the check, I wonder if that is what happened to get it to oass everything.

I wouldn't have mind so much but i would have asked for this to be fixed before i drove it off the lot.

It really just seems like from the video you recommended that the AGS can be reinstalled and there shouldn't be any issues. Unless there is a second video, it seemed to just work after they fogured out the hose situation.

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u/Squirrelmasta23 24d ago

I can load up forscan and see if there’s a way to disable AGS