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Old 04-15-2010, 11:05 AM   #1
Junior Member
Holiday Rambler Owners Club
Join Date: Mar 2010
Posts: 20
Smile Beeping sound?

Just recently purchased a pre-owned 05 Holiday Rambler Endeavor. One problem we can not figure out. When I start the engine, let it warm up, and then go from netural to drive, I get a beeping sound. No lights are on the dash board, and after I drive usually less than one mile it goes off. If I stop for a little bit, and stop the engine, and then start up and drive it does not happen. This is my first diesel, but I have previously owned gas Class A homes. The only time a beeping sound took place in the gas home is when the jacks were not fully retracted, and it indicated so on the dash lights. Checked the jacks, and this is not the case with the diesel. Any help would be appreciated. Thanks
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Old 04-15-2010, 11:23 AM   #2
"Formerly Diplomat Don"
Dutch Star Don's Avatar
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 19,251
abbygirl....This is a common problem with your parking brake. Next time this happens, stop, leave it in gear, pull the parking brake and then release it by pushing firmly down. This will usually stop the beeping.....or drive a short distance and it will stop as you have discovered. As you start making longer trips you'll occasionally hear the alarm go off for a few moments and then's a rude awekening at 60 mph.

The problem.....On the bottom of the parking brake handle, behind the driver's side, side panel, is a switch on the bottom of that parking brake assembly. It needs to be replaced. I haven't been motivated enough to replace mine yet. I'm sure it's simple, but will probably take some work to locate a replacement switch.

Here's another tip......All of those switches that under your left arm, particularly the leveling switches, are all facing upward and collect dirt. I keep my coach very clean, but it gets dusty overnight. I've already had two of the leveling switches get sticky and quit working. I now take a folded kitchen hand towel, when parked at home, and cover that entire panel.
Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor
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Old 04-16-2010, 02:23 AM   #3
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Monaco Owners Club
Join Date: Jan 2003
Location: Knoxville, TN, USA
Posts: 3,858
Try this on the switch at the bottom of the parking brake: CRC Contact Cleaner & Lubricant 16 Ounce Aerosol Spray p/n 03140: Industrial & Scientific

Bob and Pam
2022 Quantum JM31
2020 Chevy Sonic
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Old 04-16-2010, 08:32 AM   #4
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Monaco Owners Club
Join Date: Jan 2001
Location: Foley, AL
Posts: 1,247
If in fact you determine the park brake switch is at fault, you can order it from one of the sources below. The switch is sealed and is an air pressure switch made by Nason. They do not sell direct. The switch on many coaches is Nason SM-1C66R/WP28.

Order from one of the following Nason Distributors

Cross Company 866-219-8217
Sunsource 800-228-5800
Flow Dynamics 205-581-1200
Hydraulic Energy Products 800-800-3471
Fluid Power Equipment Co., 877-471-8999

2001 Monaco Diplomat 40' PDQ - 08 Honda CR-V
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Old 04-16-2010, 08:39 AM   #5
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Monaco Owners Club
Holiday Rambler Owners Club
Join Date: Jul 2006
Location: Cornville, AZ
Posts: 1,095
I bought mine from Monaco Parts, around $35.00 plus shipping.
Dave & Jeri
06 Holiday Rambler Endeavor
TOAD 15 Lincoln MKX
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Old 04-17-2010, 12:34 AM   #6
Join Date: Mar 2010
Location: The Mogollon Rim
Posts: 49
Thanks guys.Mines do the same. Gonna try the spray first. If that doesn't work then the switch. I wonder how many more out there are having the same problem. My switch only stays on for a minute or two although once it stayed on about 15 minutes. Bout drove me nuts.
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Old 04-17-2010, 03:52 PM   #7
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Holiday Rambler Owners Club
Join Date: Mar 2010
Posts: 20
Thanks to all who responded to my beeping noise. I'm getting the switch replaced on Tues, and hope it solves the problem. abbygirl--Bill and Joan
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Old 12-15-2012, 07:14 PM   #8
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Join Date: Dec 2012
Posts: 1
i'M HAVING THE SAME problem with my 2000 Winnebego. If i stop and turn off and restart the noise go's away only for a minute or two. I guess i'll try the parking brake pressure switch.
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Old 12-15-2012, 09:16 PM   #9
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Monaco Owners Club
Join Date: Sep 2008
Location: McCleary,wa
Posts: 369
Yes I've had the beeping too, maybe we should post this problem from time to time as it happens far to often. Mine started about 200 miles from where I bought my coach on our way home from the dealer. I had stopped for a bite to eat and when I started out it beeped for a short time. It was off and on for a few more trips but would always stop. When we loaded up and headed south at the first of the year it beeped for 40 miles! I found some earplugs and hoped for the best, long story short I replaced the switch. I think it's a sealed switch and I tried to spray it without success. I was able too change it by raising the panel up and unscewing it from the bottom of the park back control. It's not hard to do.
Good luck
John G.
John and Cherrie
2003 Holiday Rambler Scepter 40DST
Pushed By 2003 Ford Explorer
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Old 12-16-2012, 07:47 AM   #10
Senior Member
Monaco Owners Club
Join Date: May 2010
Posts: 314
Mine does the same as others. Also, if I hit a bump in the road (hard) it will chrip at times. Came on 1 time on a real bumpy road and stayed on about 10 minutes.
Larry, Vickie, and Roscoe (pug)
2005 Holiday Rambler 36 PRT
2006 Chevy Malibu
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Old 12-17-2012, 10:59 AM   #11
Join Date: Mar 2010
Location: The Mogollon Rim
Posts: 49
Fixed mine last year. I called Monaco (Navstar) and they had the part in stock. believe it was around $49.00. It took me about 20 minutes to change out. Alot of that was the screws holding the cover plate down that panel that contains the airbrake sensor device that is causing the noise. Mine finally got to the point where it wasn't turning the alarm off. The replacement fixed the problem/ Its fairly easy to do. I wouldn't pay someone to do it.

Also, I figure Monaco didn't re invent the wheel, so the part is probably a standard airbrake part. I didn't try it , but if Monaco didn't have the part I was prepared to take the part out and try a couple of local truck repair shops. I've noticed a few Ford parts on my rv.
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