I agree with the others. Although it may be somewhat inconvenient to make an appointment and go to Cummings, I would rather have someone who knows what they are doing instead of the dealership "experimenting" with my motorhome. If I were in your shoes, I would respect and appreciate their honesty.
Regarding the door, I also agree with the other posts. Chances are the door contacts are too far apart and not keeping contact while your motorhome or door is flexing as you travel down the road. I had the exact same thing happen to me as a guy on a motorcycle was coming along side. I'm sure I scared the crap out of him as the steps expanded, then retracted. I laugh about it now, but it could have been a different issue if the steps made contact with the motorcycle.
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John Rossi
2013 Itasca Sunstar 26HE
Firestone Airbags, Hellwig front/rear Anti-Sway Bars,
Rear Trac Bar, Safe-T-Plus, and 480 watt solar system.
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