LB7: Awkward Fuel Sensor?

jonathancasey19

jonathancasey19

yepppp
Sep 10, 2008
1,072
0
36
Morehead City, North Carolina
Every time I fill my tank all the way, I keep having the "Low Fuel" light come on. I'm not sure why. It does it after a few miles once the tank is topped off. The light comes on for 10 seconds then goes away. Usually happens 5-6 times.

Any idea what is causing it? Not sure if there is some sort of sensor? I'm not pulling any codes for it either :mad:

I would just hate for it to go out all together on the highway....
 
JoshH

JoshH

Daggum farm truck
Staff member
Vendor/Sponsor
Feb 14, 2007
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779
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Texas!!!
Does the gauge stay on E also? Are you filling up with the truck on?
 
s3gulit

s3gulit

Teh Farmer
Dec 6, 2008
173
0
0
Illinois
sending units are rediculously common in 99-02 trucks gas or diesel. My 2000 will stay on low fuel after i fillup until i burn through 2-5gallons. I just check the trip mileage and see where im at, if im over 440miles on my gasser, its getting close to fill up.
 
JoshH

JoshH

Daggum farm truck
Staff member
Vendor/Sponsor
Feb 14, 2007
13,716
779
113
Texas!!!
jonathancasey19 said:
:rofl: I'll give it a try tomorrow....

Where exactly could I find this "sending unit"?
Click to expand...
Inside the tank. When you put on the lift pump did you connect the lines at the top of the tank? If so, you may have bumped one of the wires.
 
L

LBZrcks

.........
Jun 2, 2007
5,297
12
38
38
SoCal
s3gulit said:
sending units are rediculously common in 99-02 trucks gas or diesel. My 2000 will stay on low fuel after i fillup until i burn through 2-5gallons. I just check the trip mileage and see where im at, if im over 440miles on my gasser, its getting close to fill up.
Click to expand...

X3, my dads 01 Tahoe does the same
 
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