Hows the Oil pressure gauge? If that OK then the instrument voltage regulator is
Ok. That being said the other 2 gauges first need to be checked as separate problems. Lift the wire from temp sender and measure from that wire to chassis ground It should be 5V ditto the fuel. If this checks out sounds as if the temp wire or sender
is shorted to ground and fuel sender is open
Panel lights could be bulbs or no 12v to circuit board, also remove the electrical
socket(multi wire) on the back of the instrument cluster to clean and inspect.
