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Old 08-19-2019, 02:22 PM   #1
nomadicherd's Avatar
Join Date: Nov 2018
Location: Danville, KY
Posts: 34
Exclamation Air Press Issues

Hey everyone!

So, I went to pull out today and noticed that both my air press gauges were acting funny. Typically, they are both real low from sitting and they work up to around 125 or so after 15 minutes. Today, the back was right at 125 and the front wouldn't go past 50. I turned the RV off and let it sit and turned it back on but same results. Any suggestions?

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1999 GulfStream Scenic Cruiser Diesel Pusher (Spartan Mountain Master Chassis)
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Old 08-19-2019, 02:49 PM   #2
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Join Date: Jul 2014
Posts: 19,040
Listen for a leak. You may have to bring the RPMs up a bit to get the compressor pumping faster to hear it.

If it holds 50 PSI when you shut it down, its not likely a brake system leak. Look for air ride lines and controls, door seals, or air powered steps.

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Old 08-24-2019, 06:31 AM   #3
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Gulf Streamers Club
Join Date: Jan 2009
Location: Charlevoix, Michigan
Posts: 328
Are the gauges mechanical with an air line connected to the back of the gauge or electric with just wires on the back of the gauge. If mechanical, you have an air leak somewhere. If electric, probably a bad sending unit for the gauge. The sending unit could be mounted anywhere, though probably under the dash. If you have a Spartan Chassis, give them a call with your VIN Number and they will provide you with whe wiring diagrams and air system diagrams for your chassis. For an fee, they will make up a manual for your chassis with all the information they have in a three ring binder. I did for my 95 chassis, I just don't remember the price.
GSMC(SW) U.S. Navy (RETIRED) 1967-10-03 to 1993-11-01
1995 Gulf Stream Scenic Cruiser on Spartan EC-2242 Chassis, Cummins B5.9, Allison MD3060, Toad: 2019 Jeep Cherokee Trailhawk Elite W/Roadmaster tow setup
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