Maybe it's just me, but it feels like we've had much more rain this last two or three years than before. Could be because I've had the 2SS since 2018 and am now acutely aware of weather trends
To steer back to the topic, I haven't seen excessive amounts of water accumulating in the door, and it definitely isn't sloshing around, ever. I park the car in the driveway with the rear below the front whenever I do the power washing, this seems to be the best tactic in terms of avoiding water accumulation anywhere. Hopefully it's just one of your weep holes clogged.
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2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq
Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods
JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune
1100 - 1/30/18 | 2000 - 1/31/18
3000 - 2/06/18 TPW 2/26/18
3400 - 2/19/18 | 3800 - 2/26/18
4300 - 2/27/18 | 4B00 - 3/01/18
4200 - 3/05/18 | 4800 - 3/14/18
5000 - 3/16/18 | 6000 - 3/19/18