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Old 02-18-2020, 03:45 PM   #1
Frank64
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Popping noise

My 3791RD makes popping noises ( especially at night) more noticeable in the upstairs bedroom area yet similar noises in the kitchen area. I have heard that the hydraulic fluid might be the issue. My previous fifth wheels (3) did not have this issue. Has anyone else experienced this and found a way to eliminate this noise ?
Iíve checked my fluid level and it seems to be okay.

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Old 02-18-2020, 04:16 PM   #2
rohrmann
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Your fluid is OK, but this is a known condition in hydraulic systems called stiction. Lippert put out a remedy for this years ago and it will work, sometimes adding a second quart of the recommended fluid as described in this bulletin. https://lci-support-doc.s3.amazonaws...cd_0002091.pdf
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Old 02-18-2020, 04:29 PM   #3
Frank64
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I will check out this bulletin

Thanks
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Old 02-18-2020, 06:53 PM   #4
DarMar
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Yep! Adding a quart of one of the recommended fluids will solve your problem.
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Old 02-18-2020, 10:19 PM   #5
Texan
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Bob got me started on this several years ago and I use the Cat fluid in figure 3. This is an immediate cure for the popping noise.
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