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Seems unlikely, but maybe some gunk was knocked loose and clogged them up? Not sure how dirty your motor is inside. I lucked out and mine has been pretty well taken care of, my filters had basically no particulate clogging them.
You can get to them without going through the wheel well, but it's a bit of a blind operation. I just felt around until I got it. I have seen photos of other owners' check valves and they were NAAAAASTY lol. And the solenoids need good oil Pressure to operate.
I don't have faith that that's gonna fix it, but something free to try in the meantime that certainly wouldn't hurt.
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