Foretravel Owners' Forum For owners and Fans of Foretravel Motorcoaches September 11, 2025 ...

HELP! DEF Level Indicator shows wrong level

September 04, 2022, 09:43:19 am

HELP! On my 2020 FT IH 45 the DEF level indicator jumps out of a sudden from full, down to 1/3. I stopped on the next TA to see what's happened. Filled DEF tank up to full again. Level indicator still shows 1/3. If it shows empty, I do not drive a inch anymore. Any suggestions?

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Re: HELP! DEF Level Indicator shows wrong level

Reply #1 – September 04, 2022, 10:11:44 am

Stuck sender float? Percussion persuasion indicated?

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Re: HELP! DEF Level Indicator shows wrong level

Reply #2 – September 04, 2022, 10:16:23 am

Personally I would want a workaround to insure being able to stay on schedule. These have been problematic thus I have avoided like the plague. Possible help. https://www.rvtravel.com/def-sensor-workaround-rvt-1017b/
Cummins DEF Sensor Module Level Bypass Tool Paccar Shaw Tank Simulator | eBay

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Re: HELP! DEF Level Indicator shows wrong level

Reply #3 – September 04, 2022, 09:10:15 pm

Scott X2
I read the rvtravel article that Scott posted and for under 100 you can build a work around for the DEF problems
No--I don't have DEF and I am thankful but If I did have DEF I would have already ordered the parts necessary to build the workaround.
Chris

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Re: HELP! DEF Level Indicator shows wrong level

Reply #4 – September 05, 2022, 09:22:19 am

Give Spartan a call.  My guess is your def head it headed out and is going to need to be replaced.  The good news is I do not think they have any more shortages.  Last summer people were waiting 3 months to be able to get a replacement. As stated above get the by bypass so you can keep on going when the def head fails and stops the coach in it's tracks.

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