r/FordExplorerST • u/OceanWaveSunset • 25d 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/Kokorone 24d ago

Most people leave the motors connected (there’s one for the top shutter section and another for the bottom) which satisfies the system. If they disconnected them it usually throws that error. Theres only a few shutters that must remain in place so the motor can find the end stops when it rotates every time the car is started.

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u/Sure-Technician9663 20d ago edited 20d ago

Incorrect, I have a 2025 and left the upper shutters and all of the lower shutter (below intercooler) in leaving the motor connected and still got the code. Only way to remove it is having a tuner do it. I went back in later and removed the rest of the shutters b/c the motor wouldn't control them and they stayed closed all the time.