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Old 04-07-2021, 06:02 PM   #1
Amcrebel
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Lipert jack noise

Just want to say I just added a quart of the Cat hydraulic oil additive and it completely cured all popping and snapping noises. Follow lipert instructions.
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Old 04-07-2021, 06:51 PM   #2
wingnut60
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Common problem, common solution. Not sure why it isn't put in at the factory, or change to an ATF that has a better formulation.
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Old 04-07-2021, 08:16 PM   #3
terry and jo
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I knew of the Cat oil, but I've forgotten the exact name for it. Can anyone help me by providing that name, please?


Terry
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Old 04-08-2021, 09:45 AM   #4
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Been running AMZ/OIL ATF since new with no issues.
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Old 04-08-2021, 09:53 AM   #5
porthole
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When I had the trailer at Lippert for pump noise and jack issues they replaced the pump. I asked about the anti stiction additives and they told me at Lippert it is pre-mixed in the fluid they use.

So, new pump, two new jacks, two jacks moved, new fluid. Still makes noise on occasion.
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Old 04-08-2021, 10:30 AM   #6
Amcrebel
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Cat oil

Couldn't get the bulletin to post, here's a picture of the bottle. Hmm, maybe it did??
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Old 04-08-2021, 06:04 PM   #7
Roam America
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Our first trip in our rig I noticed the hydraulic slide acting sluggish. I checked the oil level with jacks up and slides in. The reservoir was not quite 1/2 full. I picked up a small hand pump and a couple of quarts of full synthetic ATF. I removed the remaining fluid and filled with the synthetic ATF. Never had any popping like I did in my last rig.

If y’all don’t want to go that route you can get Anti Stiction additive on Amazon.
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Old 04-09-2021, 06:53 AM   #8
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It's referred to as Caterpillar anti stiction fluid. Many brands out there, one probably as good as the next.
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Old 04-09-2021, 10:03 AM   #9
Cummins12V98
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To be clear it takes much more than a "couple" quarts to fill the reservoir.
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Old 04-09-2021, 10:13 AM   #10
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Where I’m from “couple” means more than “1”. I don’t remember how many I bought, but it was more than 1 or 2.
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Old 04-09-2021, 02:11 PM   #11
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Quote:
Originally Posted by Roam America View Post
Where I’m from “couple” means more than “1”. I don’t remember how many I bought, but it was more than 1 or 2.

Understood!

Sucking mine dry with slides in jacks up if I remember correctly it took 5-6 quarts.
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Old 04-12-2021, 03:21 PM   #12
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CAT fluid. Never had a problem since, even fully extended in the cold.
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Old 04-12-2021, 05:35 PM   #13
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Lippert has replaced most of our system and they have now given up without curing the problem and 4 years of trying to do so. Paid over $4000 to have system installed in 2 year old trailer.
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Old 04-12-2021, 05:38 PM   #14
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Yeah. Manufacturers in general are jerks. I just ignore them and the time they want to waste with our equipment. Easier just to fix things.
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Old 04-12-2021, 06:08 PM   #15
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I do give them a A for effort as they sent Lippert service reps to AZ twice and MN twice but turned to an F when they gave up. Popping etc made trailer jerk as pressure was lost. When we where gone during Covid AZ park it was in called and said trailer was about to tip over. We had to send local repair guy to re-level for $100.
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Old 04-12-2021, 06:10 PM   #16
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Have you tried CAT fluid, it really resolved all out popping issues.
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Old 04-12-2021, 07:17 PM   #17
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Fluid replaced 4 times with various blends by Lippert.
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Old 04-12-2021, 07:46 PM   #18
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Yeah. Well, I seem to remember quite a few threads about similar issues that led me to try CAT. Seems it had a pretty good success rate. You just need to swap out a small amount of Lippert juice for CAT. Anyway, wish you some success.
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Old 04-12-2021, 09:36 PM   #19
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I'm a former rv service manager and Marina owner. Most of these companies know less than we do. It would take hours to list the repairs I've made on our 2019 DRV. The previous owner gave up and traded after a year. As for CAT fluid it stopped all but one jack from popping, and now it's only occasional, they all were and continuously at times. We're currently in a park and haven't cycled it many times since I added it. We have 4 slides and are over 42' so there's a lot of lines and fluid. I Was barely able to get a quart in without removing any. I read multiple replies that it took more than one so I bought two, will add the other when we get home.
As for your issue.Your issue with the jacks collapsing, if the CAT fluid doesn't cure it replacing the electric solenoid for the corresponding jack(s) will, I'll bet on it. Been there done it with our previous Big Country. Make sure you're not loosing any fluid, mark the tank with a line with everything retracted and in, a leak will cause it also, could even be in the belly of the coach, I had more than ten loose fittings.
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Old 04-12-2021, 09:50 PM   #20
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CAT didn't, motorcycle fork oil didn't, ATF didn't and 2 other unknown Lippert concoctions didn't, Solenoid didn't, replacing 6 jacks didn't, replacing fronts a second time didn't. Been to authorized dealer twice (one for over a month in summer) and had 4 differnt Lippert factory techs out 4 times as well as 2 RV repair people we paid to look at it. Most frustrating thing I have EVER dealt with and going on since install in 2014. no leaks as fluid level is always constent.
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