Coolant Temperature Gauge Test
- Remove instrument cluster. See INSTRUMENT CLUSTER under REMOVAL & INSTALLATION. Using fused jumper wire, apply battery voltage to "+" terminal on temperature gauge. Connect "-" terminal on gauge to ground.
- Connect one lead of Gauge System Tester (021-00055) to terminal "T" on gauge. Connect other tester lead to "-" terminal on gauge.
- Set tester to resistance specified in illustration. See Fig 1
. If temperature gauge indicates as specified, return to appropriate PINPOINT TEST. Replace temperature gauge if it does not indicate as specified.
Courtesy of FORD MOTOR CO.