My partner was preflighting our 172 this morning and found the Right Fuel Gauge is completely wonky. It will only read E when power is applied. I had him try gently bouncing the wings which did not help. The next trick is to defuel the tank partially to see if there is a dead spot in the sender at FULL. However if none of that works do any of y’all have any ideas? We’re replacing the senders with CEIS ones in Feb during the engine swap. They’re actually sitting on my work bench laughing at me currently. So we’d rather not have to go out and buy a Cessna one to only use it for two months.