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Old 04-09-2020, 05:28 PM   #1
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Brand: Thor Motor Coach
Model: ACE 29.2
State: New York
Posts: 10
THOR #13482
Unhappy LCI Level system lost fluid

We were on our way home from a recent trip and the TCI panel started to chirp and warning light levels down came on. I have a 2014 ACE 29.2. I was able to pull over safely to check this out. The level pads where still stowed, but all the fluid had drained out of the tank connected to the pump. Any idea why it all drained out. I did a visual and feel check of the hoses leaving the pump and non looked split and all are connected to the pump. The tank looks in tact. The manual does not go into any troubleshooting for this issue. What fluid was in the tank ,transmission or a hydraulic fluid? Once I know what fluid should be in the tank I could add it back in and turn on the pump to see where it is spraying out. Has any one replaced the tank and / or pump? It does not look difficult to remove and repair, just messy.

Unhappy campers.
David and Barbara
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Old 04-09-2020, 06:12 PM   #2
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Brand: Thor Motor Coach
Model: 2020 Magnitude SV34
State: Florida
Posts: 811
THOR #12751
You need to find the leak. That is a lot of fluid to lose without a trace. You need to check the following:

- Oil Tank for cracks
- Hydraulic lines at each connection point
- Each jack for a possible seal leak
- Pressure sensor module

You also need to check your manual for the recommended fluid type. It is typically a specific transmission fluid.

Did you hit / run over anything in the road?
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Old 04-09-2020, 06:15 PM   #3
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Brand: Thor Motor Coach
Model: 2013 ACE 30.1
State: Alberta
Posts: 1,056
THOR #2631
Well, on my 2013 the hydraulic leveler tank uses transmission fluid (see my attached excerpt from Lippert Manual Ė Dexron III or Mercon5).....but check your specific jacks manual in case you have something different.
If your reservoir tank is empty and there is not a ton of fluid in the same basement bay as the tank/pump, then you have a leak at the jacks or a hose has blown somewhere between pump and jacks. This would mean becoming more intimate with the underside of your coach to see where that leak has occurred. No sense filling the reservoir again until you find the leak(s) and repair. If you were driving when it happened then fluid has probably sprayed back over the under body near the leak. There are numerous postings on the forum advising of hose failures from chafing where they pass through frame members etc. Or just plain poor quality hydraulic lines being used from day 1. So far I have not had to repair or replace any of my 2013 hydraulics......knocking on wood here. Good luck.
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Old 04-09-2020, 09:20 PM   #4
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Brand: Thor Motor Coach
Model: 29h outlaw
State: New Jersey
Posts: 295
THOR #5248
I have friend that it happened to. It was a hose that rubbed through on a frame rail. We took it off and had one made at a truck service
Center.
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Old 04-09-2020, 11:41 PM   #5
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Brand: Thor Motor Coach
Model: Windsport 27K
State: Ohio
Posts: 154
THOR #989
David,
Before you put any fluid back in the tank take a good look around under your mh for signs of oil. This past January we were just minutes from our FL destinations when we heard a very loud bang, the leveling control panel started going crazy, and smoke started coming out from under the right front corner of the mh. When I was able to get off the road and make sure nothing was actually burning I found everything under the right front covered in oil. After checking both engine oil and trans fluid levels I discovered the empty fluid tank for the jacks. We were able to continue on to our destination where upon closer inspection I found that a hydraulic line on the right front jack blew off at the fitting. Luckily I was able to find a repairman who replaced the line. Hardest part was feeding the the new line side to side. Once the line was replaced, filed the tank and cycled the jacks, topped off the tank and cycled the jacks a few more times. No problem since. Good luck.
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Old 05-01-2020, 03:25 AM   #6
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Brand: Thor Motor Coach
Model: ACE 29.2
State: New York
Posts: 10
THOR #13482
LCI levelers lost fluid

I finally had a day with decent weather in western NY to check the hoses leading from the pump and I found the 2 orange hose connections where very loose. I tightened them up and checked the rest of the pump connections which where tight. I need to buy the Transmission fluid to refill the tank and test it. I will keep you posted on my progress.

David
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Old 05-02-2020, 03:46 PM   #7
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Brand: Thor Motor Coach
Model: ACE 29.2
State: New York
Posts: 10
THOR #13482
LCI levelers lost fluid

To all who responded to my post. Thanks, allot of good advice there. As I posted, it turned out to be 2 loose hose connections at the pump. I tightened them up and checked all the rest of the connections, filled the tank with fluid. 1 gallon of Dexron tranny fluid. I turned on the control panel and no more warning sounds and the panel had no warning lights. I ran the Jacks up and down and all is good again. Now I can't wait to get on the road again once things open up.
A new item to add to my departure check list, check the LCI connections and fluid level in that tank.

David
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