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Old 08-27-2017, 12:23 PM   #1
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Air ride suspension leak ?

I've had class A's before but never a diesel.... and frankly can't find any literature in my manuals to this question.

After about 24 hours my 2009 Winnebago Vectra 40 foot freightliner maxim chassis drops so low that my rear mudflaps hit the ground.

My greatest fear is if I don't keep my steering wheels straight when I park..... the front steer wheels might damage the fender well.

Now if that is the way it's supposed to work OK.
He just doesn't seem to make sense especially putting front fender wells at risk.

When start the coach it lifts within a minutes and the Audible alarm goes off rather quickly (if only these old ears could hear that) and off I go. However when stopping the engine I have to take extra care that my wheels are pointed straight.

Is that normal?
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Old 08-27-2017, 12:26 PM   #2
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Yes, most Class A's need to make sure front tires are pointed straight before airing down. Dropping in 24 hours is pretty fast but not out of the norm for older coaches. Leaks can be fixed but may take some work to hunt them all down.
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Old 08-27-2017, 12:28 PM   #3
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Seems like an excessive leak! Your description leads me to belive the air compressor/pump is the only thing raising your coach and deflates the second you turn it off.
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Old 08-27-2017, 12:29 PM   #4
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Thank you for responding, I wasn't sure and that makes me feel a little better
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Old 08-27-2017, 12:29 PM   #5
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I would inspect the air bags first, then a visual of the lines....if you can do it safely
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Old 08-27-2017, 12:37 PM   #6
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I take back what i said. Read over the 24 hr part. Mine "leaks out" in 24 hrs also, and its a 2002.
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Old 08-27-2017, 01:55 PM   #7
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IMHO, if you are experiencing deflation of your airbags over 24 hours, I would believe you do not have a problem. Our Discovery behaves the same way. Did have to replace the front airbags last year. However, I clearly heard the air leaking out of the bag.
If you do not have an alarm then I would believe you are ok.
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Old 09-20-2017, 04:27 PM   #8
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Air ride suspension leak ?

Mine also leak down. No big deal. Probably leaking through the bags. My big truck does the same thing. When and if one of the bags go, you’ll know it. (KABOOM!!!)
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Old 09-22-2017, 10:07 PM   #9
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My 2015 coach on FL chassis bags will go down in 3-4 days, IF the ambient temperature stays above 55-60 degrees. When the temperature drops any lower overnight the bags will be flat the next morning. I have to make an appointment with FL sometime in the next month or so for other repairs and will ask about this.

Also, FL fixed my dash air last summer stating it left the factory with deficient gas in the system and found no leaks. This summer the dash air is putting out no cool air so that also has to be addressed at the next appointment.

Seems FL is getting as bad as most coach manufactures in Quality Control.
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Old 09-23-2017, 05:54 PM   #10
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FL, will say 24 hrs is standard. But it could be better. The air compressor has no problem in overcoming this small of a leak
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Old 09-23-2017, 08:15 PM   #11
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our fl chassis will bleed down to zero in about 2 days
in fact today under neath chasing a hyd fluid leak, i still had both air tanks full, took a few to bleed them off

never thought about wheel straight ahead, i always turn them that way so i dont walk into the big ol tire sticking out at night
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Old 09-24-2017, 08:11 AM   #12
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The Suspension Air switch. In Auto after I've lowered the hydraulic jacks will allow air out of the bags. It is quieter than in the Lower mode. Takes 15 min?
If i dont put the jacks down the air stays in the bags. Over night level lot. 15 Discovery.
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Old 09-25-2017, 06:54 AM   #13
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Try putting some liquid dishwasher soap in a squirt bottle along with water. Squirt the solution onto the airlines, bag and everyplace that you think of. The solution will Bubble at the point of the leak.
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Old 09-25-2017, 07:16 AM   #14
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I wouldn't worry as much about losing air overnight as why your mudflap touches the ground when aired down. With the coach fully aired down, the flap should have a few inches of clearance.

Yes .... straighten your wheels before airing down.
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