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FC (Forward Control Unique Issues) If you have a unique issue with your FC model coach and it can't be answered in one of the other forums here, then this is where you can list it.......List your FC Parts here too.

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  #1  
Old 07-26-2019
Andy Coleman, 83' FC-35 Andy Coleman, 83' FC-35 is offline
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Default Lost Front Air Suspension Outside Cleveland

Fellow Wanderers'

Talking my wife and her family on the first big trip in our 83' FC-35 in many years. Headed for Chicago from NJ. On 80 West outside Cleveland we lost air in all four front air bags.

Tried to continue driving until everything and everybody in the RV was shaken and stirred. Pulled off the road and at a hotel now.

All four front airbags on my coach were replaced in the past 2 years.

The suspension dump switch is in the off position.

Does anybody know a reputable repair facility in the Cleveland area?

Does anybody have experience with losing air pressure in all four front bags? I don't hear any air rushing. Have air pressure in all other accessories.

Any help is super appreciated! Thank you so much!
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Andy Coleman
83' FC-35 SB
Jackson, NJ
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  #2  
Old 07-26-2019
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Gatorgrl Gatorgrl is offline
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Ride height control valve?Hubby tells me there are 2 in the back but only one for the front. If that broke, then your front will lose air in the bags.
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Dana (The Wanderer, Builder, Restorer)
Tony (The Grumpy Mechanic)

Lee County, Florida

1983 FC35 3208T "Gen X Express"
1991 Toyota 4Runner TOAD or
1980 Camaro TOAD

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  #3  
Old 07-27-2019
Andy Coleman, 83' FC-35 Andy Coleman, 83' FC-35 is offline
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Good thought Dana! I will check that first thing in the morning. Thank you!

My mechanic at home replaced that valve recently to try and level the coach. After several tries on his part, the coach is still not level. But better than it was!

A
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Jackson, NJ
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  #4  
Old 07-27-2019
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Dieselbird01 Dieselbird01 is offline
John Wyatt – Administrator/Moderator
 
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Often the rod that attaches to the height control valve arm is the problem. However, keep in mind that working under a coach is dangerous - the coach must be properly supported before you get under there. The coach can come down and crush you! NOTE: Leveling jacks do not qualify as proper support!
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John Wyatt
Titusville, Florida
1991 40' WLWB-WTB
Body Number F095567
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1991 40' WB ...From 2008 - Present
1984 ½ PT-36 .From 2000 - 2008
1973 FC-31 .....From 1991 - 2001
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  #5  
Old 07-27-2019
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Bill Pape Bill Pape is online now
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Quote:
Originally Posted by Andy Coleman, 83' FC-35 View Post
Fellow Wanderers'

Talking my wife and her family on the first big trip in our 83' FC-35 in many years. Headed for Chicago from NJ. On 80 West outside Cleveland we lost air in all four front air bags.

Tried to continue driving until everything and everybody in the RV was shaken and stirred. Pulled off the road and at a hotel now.

All four front airbags on my coach were replaced in the past 2 years.

The suspension dump switch is in the off position.

Does anybody know a reputable repair facility in the Cleveland area?

Does anybody have experience with losing air pressure in all four front bags? I don't hear any air rushing. Have air pressure in all other accessories.

Any help is super appreciated! Thank you so much!
Quote:
Originally Posted by Dieselbird01 View Post
Often the rod that attaches to the height control valve arm is the problem. However, keep in mind that working under a coach is dangerous - the coach must be properly supported before you get under there. The coach can come down and crush you! NOTE: Leveling jacks do not qualify as proper support!
Follow Dana & John's post,
But dump switches are usually labeled "Suspension Up"
Not sure what off means?? Try flipping that dump switch
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Bill & Patty
1988 FC, Silver Edition
Commerce, Michigan
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  #6  
Old 07-27-2019
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kg4rrx kg4rrx is offline
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Sounds like front is down but rear is up. I'd almost guess something more mechanical-internally within a valve. Are you still getting up to 120 lbs?
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Fayetteville, GA
87FC
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  #7  
Old 07-27-2019
badandy badandy is offline
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You can disconnect the rod from the axle and just manually move the ride height valve and see if it comes up. I would think if a real mechanic replaced it then they would have done this to set the rod length, but I wouldn't assume that. The dump valve could be dumping air, but you would hear that if you get under there with everything turned off and quiet.
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Old 07-27-2019
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If you are holding pressure than I think it is HCV issue, if pressure is low than you probably have a hole in a bag
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  #9  
Old 07-27-2019
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I would suspect the front exhaust has ruptured and burnt out a front air bag on the passenger side. You may be looking at replacing the exhaust and insulation as well.
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Jeff Kunzelman
Oakville, Manitoba, Canada
1988 FC-35SB 300HP/ZF (2016-current)
1978 GMC Royale 26' (2015-2016)
1982 FC-33SB 250HP (2007-2009)
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  #10  
Old 07-27-2019
badandy badandy is offline
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Well that escalated quickly.
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