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Old 08-12-2018, 09:56 PM   #1
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Brand: Thor Motor Coach
Model: Freedom Elite24FE
State: Texas
Posts: 156
Check engine

We have 1,500 miles on out Mercedes 3.0 and Check engine light came on
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Old 08-12-2018, 11:39 PM   #2
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Model: ACE 30.1
State: New York
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Bring it it over to AutoZone or one of the chain type autoparts stores. Most will read the codes from the OBDII port and let you know what the code is.
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Old 08-13-2018, 01:23 PM   #3
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Brand: Thor Motor Coach
Model: Chateau Super C 33SW
State: Florida
Posts: 80
Or stop by a MB dealer. 3,000 miles is all warranty work. I don't trust the yahoos at the auto parts stores to touch my stuff anyway...
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2015 Thor Chateau Super C 33SW
F-550 Chassis, 6.7L Powerstroke
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Old 08-13-2018, 02:01 PM   #4
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Brand: Thor Motor Coach
State: California
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1500 miles

Probably a loose fuel cap. Unscrew and re-close the fuel cap and the problem may go away after a few starts.
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Old 08-13-2018, 02:30 PM   #5
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Brand: Thor Motor Coach
Model: Palazzo 33.3 34'bunkhouse
State: North Carolina
Posts: 972
loose cap, or you may have let your DEF run too low... easy fix..... probably : /
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'14 Palazzo 33.3 bunkhouse 34' diesel
KingTailgater2 Dish HD, 200w/10a SOLAR
85,000mi since '14 - US, Alaska, Canada.... western NC for now : )
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Old 08-19-2018, 01:00 AM   #6
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Brand: Thor Motor Coach
Model: Freedom Elite FE22
State: Colorado
Posts: 1
When the Engine Check Light came on our new 2017 Thor Freedom Elite, I could not detect any difference in performance with 2017 Ford E450.

My concern was not knowing if the problem was serious or not.

It took some time to make an appointment with an authorized Ford mechanic for the warranty service. They could not replicate the problem or come up with a possible solution.

The error code was P0300 Random/Multiple Cylinder Misfire Detected.

After doing some research on the Internet, I ordered a KOBRA Wireless OBD2 Car Code Reader from Amazon and purchased OBD Fusion for my iPhone. (The OBD Fusion is the software that will retrieve the code.)

Using my iPhone, I was able to access the code and determine it was the same problem the RV mechanic found.


After the third incident in about 5,000 miles, I decided to use Rislone Gas Fuel System Treatment to help eliminate possible water or moisture in the fuel tank. (Only time will tell if this makes any difference.)


Joe G. Rodriguez
2017 Freedom Elite Model FE22

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Old 08-19-2018, 01:25 AM   #7
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Brand: Thor Motor Coach
Model: 2016 Axis 24.1
State: Florida
Posts: 1,850
An OBD2 reader is a useful tool to have. In my first 8000 miles on my 2016 V-10 in my Axis, I had the engine light come on three times - always in high humidity conditions and after a heavy rain. The OBD2 gave me the same code for a CO2 sensor - and allowed me to zero out the engine light. It hasnít happened in the last 16000 miles. I also have used the OBD2 to check and reset the engine check light in my Miata. Great peace of mind and time saver on the road or, if it continues to happen, that something really is wrong and needs to be looked at.
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