If your fuel gauge goes quite a bit above full, and is out of gas at about an 1/8th of tank, you need to replace the pump. The internal sensor on the pump is sending the wrong ohm value to your gauge.
If you have to replace the pump, you may need to replace the retaining straps and nuts because these might break or otherwise get damaged when changing it out. You have to drop the tank or pull the bed to replace the pump, . Dropping the tank is a 1 person job, lifting the bed is a three/four person job.
If the pump you have is not the origanal, it might be a pump for the 13 gal tank. That was used on the 83 - 93 4 cil and the 2.8L engines
All S10/S15's with the 4.3L have 20 gal tanks as stock.
Consider getting both of the 83 - 93 S10/S15 specific Haynes and the Chilton manuals.
Wednesday, November 26th, 2008 AT 10:20 PM