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Old 10-19-2013, 07:31 AM
tmd tmd is offline
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DEF gauge acting up

Got in my truck a few days ago and the Low Fluid light came on saying 500 miles to empty. Thought this was odd because when the truck only had 1200 or so miles on it the half full indicator came on. I added 2.5 gallons and that lasted until about 5500 miles until it showed half full again. I then added another 2.5 gallons. Needless to say a few days prior to showing 500 miles till empty is was showing fluid level ok. Needless to say 4 starts later it was down to 480 miles till empty so thought I would swing my dealer and take it into service. Wouldn't you know it on the next start up to go there the warning went out and it showed fluid level ok. Tech looked at it and said he needed the indicator on to diagnose it. Said if it comes on again bring it in with it on and leave it running. Well yesterday evening it came on again so back to the dealer I go. When I got there the techs were gone so I asked the service writer to look at it. He said he was too busy and to add fluid to see it goes out and that it probably needs it anyways. No sense in arguing with a turnip so I buy a 2.5 gallon jug and added it. Well I had to shut the truck off to unlock the tailgate and get my nozzle. It only took about 2 gallons to fill it to the rim and wouldn't you know it, when I started it up again the low fluid warning didn't come on. Now the service writer is saying I don't see a problem. Now I going on a road trip this afternoon and with my luck it will come on and get down to 0 and leave me stranded.
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Old 10-26-2013, 06:41 PM
tmd tmd is offline
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Well two trips to the dealer now and they cant figure it out. Have another appt for Monday so we'll see what happens.
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Old 10-27-2013, 05:29 AM
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Originally Posted by tmd View Post
Well two trips to the dealer now and they cant figure it out. Have another appt for Monday so we'll see what happens.
I would like to know the final results on that...
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Old 10-31-2013, 02:37 PM
tmd tmd is offline
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Just had my truck in for the third time. No codes and they cant duplicate it. Pretty much said if it comes on again try to get the truck in when a tech is available.
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Old 10-31-2013, 03:37 PM
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The sensor has only 4 positions. Full, half, almost empty and empty. Chances are that the sensor is messing up, and you need a New DEF pump which has the sensor in it
Sent from AutoGuide.com Free App
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Old 11-17-2013, 05:56 PM
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Take it to another dealer.
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