Here's one for the group. 2006 LR3 161K miles. Driving 200 miles towing a car on a car trailer had a stop in mind for gas. 5-10 miles before the fuel exit the fuel lite comes on. NP I'm right there. Get off the highway come to a stop sign. When I go to continue car would not accelerate. Start forward stop, start stop. Easy pedal same thing start stop, would not accelerate. Put it in manual and was able to creep to the top of the hill in 1 knowing at the top I had a downhill run to the gas station. Worked through 1-2-3rd gear and coasted into the station. Filled the tank started right up no problems off I went for the remaining 175 miles. I had no performance issue" or any warning messages just the low fuel lite. I've experienced "low performance mode" when had over heating issues but this was not that. Hit the gas it lurched then stopped. Hold the gas lurch/stop/lurch/stop.....I realize I was probably getting maybe 8mpg towing a car but I def did not travel more than 10 miles before getting to the gas station after the lite came on and on the highway was cruising like nothing was wrong. Any ideas appreciated.....

 

Could be a faulty sending unit. There are two in the tank, one mounted with the fuel pump and another that stays inside and its not exactly easy to replace. The gauge is averaged of the two, in a way. The idea of two floats I believe is to provide accurate readings when the truck is at steep angles. So if one is out of wack then you can get a false reading. Typically this can present as not showing 100% full when you fill it up or the last quarter of fuel seemingly goes quickly on the gauge.

With all that said, you were low on fuel with probably 1 gallon or less in the tank, which is very little. Then you took a ramp which declines AND you are braking on it. So its very probable the swirl pot simply dried up. The only solution is to et the truck idling in drive, then release the brake and apply to give the truck a gentle rocking action. This will get whatever fuel may be left into the venture ports and maybe dump into the swirl pot as air is slowly worked out. But you also have that issue, air getting sucked into the system since there is no return line that could cycle it all through quickly.

So if I had to bet, you simply ran it too low on fuel then decelerated which caused the swirl pot to run dry and the pump sucked up air. Adding fuel helped submerge things and you were back in business.

 

Hey Dakota.....on a good day I get 12-15mpg. thinking maybe I missed the light and emptied the tank. The LR LR3
gods let me creep to the pump where I was able to refill.....good lesson......thx
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You "filled the tank." How many gallons did it take? Curious.

 

Funny, that was my afterthought. Because of the trailer I couldn't get right up to the pump so filled until it shut off plus a little. Could have been 15-19 gallons didn't think to look as I knew whatever it took would get me home

 

DOH! That would have been a good data point!!!

 

hind sight buddy

 

Also 95 degrees wasn’t into diagnosing. Put in gas it ran great end story