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Old 08-20-2021, 01:36 PM   #1
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Air Leak

Hello, We have a 2007 Monaco Knight R8RR chassis. We are experiencing an air leak on the passenger side rear . The passenger side leaks overnight and both air bags seem to be affected. When we start the coach to travel both air bags inflate and remain inflated when we are traveling. When we set up at a campground, we put all the slides out, dump the air, then activate the levelers.
I have checked and some air is still in rear tank, but the passenger side rear has dropped. How do I determine what is causing the problem?
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Old 08-20-2021, 02:02 PM   #2
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May take a while but using soapy water I just chased down a small leak to a solenoid on a rear manifold
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Old 08-20-2021, 02:36 PM   #3
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I have the same motor home as you do. It has done the same thing since new. Could never find a leak, Called Monaco when they were still alive and they said that was no problem.14 years later and still the same .
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Old 08-21-2021, 08:42 AM   #4
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Is everyone aware there are small check valves in the manifolds that are designed to prevent the air from leaking back. These are hard to find with soap bubbles. Worth getting a diagram if the system that shows what’s going on inside the manifolds. You can buy a rebuild kit that has the o-rings and check valves
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Old 08-21-2021, 08:51 AM   #5
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Would a Knight even have air manifolds?

Don't think they came with air leveling.
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Old 08-21-2021, 05:42 PM   #6
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Believe he has a R8RR. Believe that’s a Roadmaster 8 airbag Rear Radiator. Could be wrong but don’t think so
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