So I have a problem with my fuel gauge that started a couple of day ago. I was filling up at the pump when my guage got stuck on 3/4 tank. I turned the truck off and back on and it seems to fix it. Well since then it will slowly fall to a 1/4 tank back to 3/4 even though I have a full tank. From the research I've done I can't seem to find much on this for the lml engine. It seems like it could be the stepper motor behind the guage or the fuel level sensor. Any thoughts before I tear into this truck? I really hope it isn't in the dash. Looks like a mother to work on.
2011 fuel gauge issues!!
- Thread starter jckendr1
- Start date
Check it with a scan tool and compare readings. That will tell ya if sending unit or IC issue.
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Sent from my SAMSUNG-SM-G870A using Tapatalk
My lmm did this to me and finally I got annoyed enough and had to replace the sending unit inside the tank. The mechanic told me they level sensor/sending unit / pain the ass slides up and down in the tank on two plastic rails/poles well one of mine had fallen off inside the tank and my gage was all over the place till I fixed it. So it's not your gauge I would bet it's in the tank issue. It's somewhat common with lmm is what I found out. I drove it like that forever till I fixed it.
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Sent from my STV100-2 using Tapatalk
I'd almost bet anything it's your sending unit. Same thing happened to me. One of the rails it slides up and down on fell off in my tanks.
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Sent from my STV100-2 using Tapatalk
Bring this back up as I'm having similar issues. When I fill up my gauge gets to about half a tank and then takes about 40 miles to slowly creep up to full. Cycling the key changes nothing. Gauge works fine going from full to empty. Thoughts?
As I posted above, read the fuel level with a scan tool. If the scan tool matches the gauge, then it's most likely the sending unit.