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Old 05-27-2012, 04:36 PM   #1
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Help with Problem

I'm hoping someone can identify these components and give me some advice. This is what I believe is the brake master cylinder assembly fluid reservoir. It is on a 2004 Winnebago Adventurer. When you open the hood, it's right in front of your eyes. I'm concerned with the wire assembly on the bottom left. I found it had been broken off and was just sitting there. Don't have any idea as to when it happened. Does anyone know what the wire assembly is for? Is it ok to drive the coach as it is? Really will appreciate the assistance. You can call me at 865-660-6127
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Old 05-27-2012, 06:01 PM   #2
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Is this wire assembly a group of wires sharing a single connection plug and is that connector broken?

If so, it should be fairly easy to find the other connector it broke away from. I have no idea what its for, but if you need to use it, I would check all the gauges and warning lights on the dash as well as all lights, turn signals, etc.

It is *possible* that wire group is not being used in your vehicle and it just became unsucured and droped down into view. It would be easier to help if you took some pictures.

John & Clare - Buck & Zeus - Jack & Husky
2008 Fleetwood Bounder 38P
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Old 05-27-2012, 06:54 PM   #3
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Darnit. Mine has that sensor but no wire to it. But I can't remember what it's for (it's been six years since I replaced my master cylinder).

Maybe it's for fluid level? Suppose to go to an idiot light on the dash? That's all it does. Drive without worry. Well, check the fluid level and for leaks of course.

Hah, just found it...it's for a brake light switch. The manufacturer didn't have to use it but do check your brake lights. In my Oshkosh chassis that would have gone to an idiot light. It would have been a pressure switch telling me if I was low on fluid.
'02 Winnebago Journey DL, DSDP, 36' of fun.

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Old 05-27-2012, 07:10 PM   #4
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Hard to see in the photo, it could be brake light switch, or sensor for uneven pressure in the two brake circuits. It might be an unused brake light switch if you also have one on the pedal arm under the dash. No lights on dash?

Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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Old 05-27-2012, 07:14 PM   #5
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snip...or sensor for uneven pressure in the two brake circuits.
that's it!
'02 Winnebago Journey DL, DSDP, 36' of fun.

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Old 05-27-2012, 08:43 PM   #6
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It's the pressure differential switch. The wire going into it from the reservoir is probably the low fluid sensor.

2010 Winnebago Tour 42AD, Cummins ISL 400, Allison 3000, Progressive EMS, Aventa II, Air Force One, Tire Safeguard TPMS, Blue Ox Tru Center (maybe), Lotsa LEDs
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