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Old 04-17-2006, 08:15 AM   #1
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1976 28' Argosy 28
Lansing , Michigan
Join Date: Sep 2004
Posts: 58
Brake warning light

My brake warning light came on again. The last time this happened, I had to replace a line off the master cylinder. This time I applied the brakes, I found a line of fluid sprayed on the ground and the brake warning light lit up. Also, the power steering was making the loud noise. Are these two systems related. I should add that this is on my 1976 Argosy MH. Any and all responses would be appreciated.

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Old 04-17-2006, 08:18 AM   #2
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1984 31' Airstream310
Dunsmuir , California
Join Date: May 2004
Posts: 1,336
Images: 16
On mu 84 MH and I assume your rig as well (Both P30s) the power unit is the same for the steering and the brakes.

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1984 310 Limited Motorhome
Courtesy Parking (W/S/E/Wi-Fi) on I-5 in Northern California, 70 miles from Oregon border
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Old 04-18-2006, 08:40 PM   #3
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1984 28' Funeral Coach
Belleview , Florida
Join Date: Jun 2005
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Fish, if you find you need a hydroboost pump check out and see if one of the units they have will work for you. Not sure what might work for your vintage but they have a number of options. Their prices are way cheap! Likely a line again if you're lucky, as they have them too.
Glen Coombe AIR #8416
1984 28' Funeral Coach
Former Rolling Showroom & PuttLab (now party bus)
"I'm not an expert. But I did sleep in an Airstream last night."
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Old 04-25-2006, 07:04 PM   #4
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1986 34.5' Airstream 345
Louisville , Kentucky
Join Date: Feb 2003
Posts: 1,861
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As Glen and Guy have pointed out, the hydroboost pump provides the power for both the steering and the power brakes. Replacements can be had from Mills, or any aftermarket auto parts supplier. I bought a rebuilt pump with a lifetime warrantee from AutoZone for about $60. New pumps are pretty expensive. Either way it's a special order part and will take the better part of a week to get one.

Replacing the pump is a real PITA. Here is a link to my saga that began with a water pump failure and ended with the replacement of my pump (

If you plan to do this youself, feel free to PM me as there are some tricks. In all honestly, this is one that I would gladly pay a professional mechanic to do for me in the future.
Steven Webster
1986 Airstream 345 Classic Motorhome
AIR 1760
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