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06-25-2018, 10:22 AM
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#1
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New Member
Join Date: Feb 2017
Location: Las Cruces
Posts: 6
M.O.C. #19456
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Noise from below
We have a 2017 3720RL. At night after getting in bed, we’ll hear a fairly loud bang or pop sound coming from under the bedroom area. Can’t figure out what it is. It’ll happen on and off - let’s say 5-10 times over 1/2 hour- until we finally fall asleep. Any ideas what’s causing it?
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06-25-2018, 10:55 AM
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#2
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Montana Master
Join Date: May 2018
Location: livingston,tx
Posts: 562
M.O.C. #21685
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More than likely it is your level up system settling. Check for hydraulic leaks first. Lippert suggest an anti-stiction fluid additive, there are 3 they recommend. 1. Torco RFF Grade 15, 2. Maxima Fork Oil Grade 15, 3. Caterpillar Hydraulic Oil Additive 1U-9891. I used the Cat oil just yesterday. They are all about the same price $25-30 a quart which is all Lippert suggest you add to your hydraulic tank.
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06-25-2018, 10:59 AM
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#3
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Montana Master
Join Date: Jan 2005
Location: North Ridgeville
Posts: 20,229
M.O.C. #2839
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Like Kyle and Lisa said.
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06-25-2018, 01:42 PM
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#4
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Montana Master
Join Date: May 2017
Location: new caney
Posts: 1,050
M.O.C. #19873
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I use the cat oil also. I used 1 quart but some folks have used 2 quarts. 1 quart works for me. You just use a bulb to remove an quart out of tank and replace with additive.
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06-25-2018, 02:43 PM
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#5
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Montana Fan
Join Date: Jun 2017
Location: WESTMINSTER
Posts: 159
M.O.C. #20081
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Where do you get these oil's at? I haven't had this problem but like to know were to get them if needed.
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06-25-2018, 02:55 PM
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#6
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Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,773
M.O.C. #12156
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Your lippert manual provides detailed instructions on the use of anti-stiction additives. Bought mine on Amazon.
__________________
Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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06-25-2018, 04:07 PM
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#7
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,472
M.O.C. #4831
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Attached is the Lippert Stiction announcement.
__________________
Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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06-26-2018, 09:34 AM
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#8
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Montana Master
Join Date: May 2018
Location: livingston,tx
Posts: 562
M.O.C. #21685
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Quote:
Originally Posted by Md.FireFighter 3791RD
Where do you get these oil's at? I haven't had this problem but like to know were to get them if needed.
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I picked ours up from a Caterpillar equipment dealer.
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06-26-2018, 09:59 AM
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#9
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Montana Fan
Join Date: Jun 2017
Location: WESTMINSTER
Posts: 159
M.O.C. #20081
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Have to see were the nearest dealer is for me or Amazon
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