I bought an 89 5.0 about 2 months ago and just now getting to work on it. First and foremost Im pretty ignorant about working on vehicles, but I want to learn what I can. The speed, RPM, and battery gauges work, but the fuel, temp and oil do not. Being the car is 30 years old Id like to make sure its not running hot. Ive pulled the cluster out, but in reality I dont know what I am looking at. Ive read a little on here about the sending sensor. Located it, seems to be in good shape. Any help...

89 5.0 Cluster