Fuel Gauges
- To test accuracy of fuel gauge, use Tester (J 24538). Disconnect wire from sending unit. Connect one lead of tester to ground and other lead to sending unit wire. Compare results with specifications shown in FUEL GAUGE SENDING UNIT RESISTANCES .
- If within specifications, measure resistance across terminal test points on fuel gauge, as listed in FUEL GAUGE RESISTANCES (INTERNAL) . Compare results with specifications shown in table.
FUEL GAUGE SENDING UNIT RESISTANCES
| Application | Indication | Ohms |
|---|---|---|
| Grand Wagoneer & Trucks | Empty | 61 |
| 1/2 Full | 23 | |
| Full | 10 | |
FUEL GAUGE RESISTANCES (INTERNAL)
| Application | Test Points | Ohms |
|---|---|---|
| Grand Wagoneer & Trucks | "S" to "A" | 19-21 |