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Old 04-26-2018, 01:16 PM   #2
Steveo57
Senior Member
 
Join Date: Dec 2017
Location: Lisbon
Posts: 551
I would pop off the vent covers and see what you can see. I found the duct cutout left in one of mine and it blocks the airflow nicely!
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2018 Keystone Cougar 22RBS
2020 Ford F-350 XLT SC SRW 6.7l Powerstroke.
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