2001 Silverado shortbox with 26-gallon tank. My fuel gauge started acting up, but Techron (complete fuel system cleaner, not FI cleaner) seems to have fixed it so far.
I was idling in park recently and noticed the "Low Fuel" light. The needle had swung from just under 1/2 to E and then to F and back to where it started. This kept happening intermittently.
I know the sensor is part of the in-tank pump assembly, and changing it requires dropping the tank or removing the bed. I also remembered Techron claiming to clean malfunctioning fuel level sensors, so I put a 15-gallon dose in.
The gauge acted wacky for another day or two afterwards, but then stopped. I ran it down near E and added a large and a small bottle with a fillup. I'm down near 1/4 now, and the gauge has worked normally the whole time.
I was idling in park recently and noticed the "Low Fuel" light. The needle had swung from just under 1/2 to E and then to F and back to where it started. This kept happening intermittently.
I know the sensor is part of the in-tank pump assembly, and changing it requires dropping the tank or removing the bed. I also remembered Techron claiming to clean malfunctioning fuel level sensors, so I put a 15-gallon dose in.
The gauge acted wacky for another day or two afterwards, but then stopped. I ran it down near E and added a large and a small bottle with a fillup. I'm down near 1/4 now, and the gauge has worked normally the whole time.