Quote:
Originally Posted by Roaddevil
I just purchased a new 2021 Thor Motor Coach. I have not driven it off the lot because of several problems. The major issue which cannot be fixed or repaired is the leveling system made by Lippert Levelers continue to make loud hollowing sound when the jacks are retracted. We have replaced the controller, the motor and pump as will as the jacks. Still the noise does continues. It sounds like air in the lines but the manufacturer believes this is not the problem since the pump has been replaced.
Has anyone had this issue.
THANK YOU.
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My jacks made a loud screeching noise when first retracting when there was still a load on the jacks. I assume it was the pressure seals binding on the jack shaft. LCI recommend replacing some of hydraulic oil with motorcycle fork oil. That helped some but the jacks still screech when first retracting and soon as the load is off the jack,s it makes no noise while continuing to retract. I now assume the screech is the high pressure going through the hydraulic fluid's return valve causing it to vibrate.
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