How to test fuel sender

ok reinstalled new sender into brand new tank. Filled tank. Turn key on and the gas gauge (and temp gauge?) starts to creep up to 1/4 full, 2 seconds pause, then gauge goes back down to beyond empty, like all the way to the left. remains dead while I drive. If i turn off car for a few seconds, then turn key back on, the gauges do the same thing as above.

Any idea what this means? I had tested the Gas gauge off the car using 3 D batteries and I was able to get the gauge to move to 3/4 full.


Recap: New cluster board, new voltage limiter, new Fuel sender unit.

Is it possible that the voltage limiter is wrong or bad or would bad limiter also effect other things?



repair factory sender,dont know about temp though