LEMON Manuals: Even more car manuals for everyone
Home >> Cadillac >> 1976 >> Seville >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Switches, Gauges & Speedometers >> Testing >> Fuel Gauge

Fuel Gauge

CAUTION: Do not introduce battery current into system by using a hot jumper lead.
  1. Locate fuel tank sending unit lead (18 gauge Tan wire) at right side of trunk lock mechanism. Disconnect Tan lead from license plate side of connector. Jumper a good fuel tank float between body side of connector and ground. Slowly move float arm from full to empty.
  2. If gauge fails to follow float, check continuity in Tan wire circuit at connections, fuse block and gauge. If circuit has no defects, replace gauge and retest.
  3. If gauge follows float, fault is between trunk connector and sending unit ground. Check trunk connector terminal and Black ground lead. If problem still exists, check sending unit.