Fuel Gauge

Insure battery is fully charged. Disconnect electrical lead at fuel tank sending unit. Connect gauge tester (BT-6508) to sending unit wire and to ground. Set tester at "FULL" and turn ignition to "ON" position. If gauge responds to tester, check sending unit ground. If sender ground is good, replace sender. If gauge does not respond to tester, leave sender disconnected and connect tester to left terminal of gauge (viewed from back of gauge) and to ground. If gauge responds to tester, check printed circuit. If gauge does not respond, replace gauge.