INSTRUMENTATION 5.3 Replacement To replace a faulty gauge, meter or switch in the right hand dash panel: 1 Disconnect the battery cable connection. 2 Remove the 3 screws retaining the dash panel to the dash pod. (fig. C3580) 3 Access the rear of the dash panel. 4 Remove the wiring from the effected part. 5 The fuel gauge is retained by a bracket and 2 mount- ing nuts. Remove the nuts and the gauge can be replaced. 6 The ignition switch is retained by the knurled nut on the outside of the dash panel. Remove the nut and the switch can be replaced. 7 The hour meter is retained in the dash panel with molded in tabs. Pull the tabs outward and the hour meter can be replaced.
Hour meter Fuel gauge Screw Ignition switch C3580 Fuel gauge Hour meter Testing the Fuel Gauge 5 1 Remove the right hand dash panel to access the gauge. (fig. C3581) Ignition switch C3581 2 With the ignition switch off, connect an ohmmeter between the “S” terminal and the “I” terminal. (fig. C307) 3 An ohmmeter reading of 150 to 250 ohms is normal. A higher or lower reading means the gauge is faulty and needs to be replaced. NOTE: If the fuel gauge test results were good and the gauge still fails to function do the following test. C307 1 With the ignition switch off, connect an ohmmeter between the “S” terminal and the other end to ground. 2 An ohmmeter reading of 50 to 500 ohms is normal.
A higher or lower reading means the wire going to the “S” terminal is faulty. NOTE: If the test is good, check the fuel sending unit in the fuel tank for failure. C308 5-10