replaced fuel pump,fuel gauge not working.tried plugging and unplugging several times.gauge reads full unplugged with key on;reads empty plugged in with key on.reads 1/8th of a tank with key off plugged in.
fuel gauge on 1996 Ford Ranger
Sounds like the sender unit in the tank has failed but for proper test procedures Autozone have some popular workshop manuals for free on line once you register (for free) on their website http://bit.ly/autozone_repair_info. There is also a company that independent auto repair shops buy their information from that the same information inexpensively to do it yourselfers. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate http://bit.ly/AllData_Repair_Manuals_Online