Does this help? (topics)
Fuel Gauge Fluctuates or Fails to Work.
Diagnosis.
1. Fuel Sender Unit Failure.
Testing the Sending Unit Out of the Car.
Repair of Sender Unit.
2. Failed Fuel Gauge.
3. Poor Instrument Panel Contacts.
4. Failing Instrument Cluster PCB Solder Joints.
https://www.brickboard.com/FAQ/700-9...augeFluctuates
Seems pretty comprehensive.
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1985 744 gle d24t
1985 745 gle d24t
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