Toyota Crown MS112 Fuel Gauge not working

[iceman22]

Hello, I'm new here. I got myself an old 1981 Crown MS112 Super Saloon 2.8 and I have problem with the fuel gauge not showing correct amount of fuel.

The fuel gauge is mostly staying in the same position (around half full) all the time, and sometimes it moves at random times. I've tried unplugging the sensor located in the trunk that is plugged to the fuel tank, but the gauge still stays at the same position. The speedometer, RPM gauge and engine temperature gauge is working. So I was wondering if you had any advice what I could do now to find the source of the problem?

I appreciate all help I can get :)

 

 

 

Edited January 8, 2017 by iceman22

[trentmeyer23]

Sounds like the gauge is poasibly dead. To confirm you could connect power and ground to the connector you disconnected from the sender.

[iceman22]

Thanks for reply. When the car has low fuel, the yellow fuel symbol lights up, so I guess this mean that the fuel sensor is actually working, but not the gauge itself.

Is there any hope to get the gauge fixed? Since the car is that old and rare, it would be impossible to get a 2nd hand instrument cluster.

[trentmeyer23]

1 hour ago, iceman22 said:

Thanks for reply. When the car has low fuel, the yellow fuel symbol lights up, so I guess this mean that the fuel sensor is actually working, but not the gauge itself.

Not necessarily. There could also be a wiring issue. Some vehicles also have independant low fuel light and gaige level circuits.

It's an old car, wiring quality degrades over time.

Don't be too eager to throw money and parts at it without correctly diagnosing beforehand. It will only hurt your wallet in the long run.

IF the gauge is found to be faulty, you may be able to get it repaired.