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Old 08-10-2022, 02:50 PM   #1
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Question Squeaky Driver's Side Suspension

Hi, I have a 2012 Thor Serrano W22. We love our motorhome except for a major squeak coming from the driver's side. I have tried spraying various lubricants in the area under the motorhome but squeak still remains. Could it be the leafs in the leaf bundle that are squeeking and needs to be removed and serviced.
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Old 08-10-2022, 06:40 PM   #2
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First, spray the spring packs with silicone lubricant and observe results.If squeak stops you found it.
IMO it is a hassle to pry apart leaves, remove old, install new plastic anti-squeak pads and replace the spring pack. There is no need to remove the spring from mounts.
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA." My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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Old 08-10-2022, 07:07 PM   #3
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Often that squeak will come form the front sway bar. It bolts in four points, at the wheels on both sides and two center supports about 36" apart at the center of the sway bar. Those bushings often wear out or slip to one side.

Also check the entire frame up front for orange/brown dust, indicating a crack near a shock mount or some other suspension component. A shock, if original could be bad and is dry.
Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor
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Old 08-10-2022, 07:11 PM   #4
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Welded struts between the coach body and chassis at the front seem to be prone to cracking free at the welds. They then can squeak as the chassis flexes beneath the coach.
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Old 08-10-2022, 07:28 PM   #5
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I also had a major squeak in the front end of the Mh. I tried every moveable object that I could find and nothing I did would eliminate the noise.
I finally found that the expandable foam that had been used up and around the upper interior portion of the front hood/ac box was the noise. I removed the original foam and sprayed in new expandable foam. The problem is gone and I have my sanity back.
The old foam was only attached to itself, not part of the MH. Perhaps that is the source of the noise. Good luck.
Don and Marilynn
'04 Newmar Dutch Star 4010
Spartan Chassis/Cummins ISL 400
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Old 08-11-2022, 05:46 AM   #6
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In addition to all the above, I would add.....Make sure your shocks are torqued down, suspension lubed and all rubber gaskets insulating the "house" from the chassis are in place. I had a squeak driving me nuts for over a year and it turned out to be a missing rubber gasket securing the lower part of the windshield in place. It was apparently just pressed in place with no adhesive at all and fell off. Glad to add to the confusion!
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Old 08-11-2022, 06:02 AM   #7
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Look for broken coach frame tubing from above. I looked for years laying under my motorhome and never seen the problem. I accidently found it while working on something else. I found it by looking into the wheel well infront of the front tire.

First picture is what happened long ago. Second picture is what i found on otherside (drivers) when i got back from one from my last trip. To clarify, i looked for the driver side problem from under motorhome when i got to my campsite and twice when i gott back. Never looked above the suspension. My Big mistake.
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driver, suspension

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