Dave_E
Senior Member
OK, this discussion is aimed at the real electricians in the group (no offense to anyone else, but this isn't everyone's cup of tea).
I have 2 indicators, they both test good with the ground to the sender, needle moves to full hot (gauge powered of course). I have tried 2 new sending units for dual gauges (Sierra matched sender and gauges) and have read out the wire from the sending unit to the gauges. ALL individually check good. Start the engine, hook up the gauges to the sending unit and.... NOTHING. How is this possible?
I did the science project with the senders in hot water, they perform as advertised. A good wire run is a good wire run. Even though the gauges check good by grounding the S terminal, do you think it's possible the gauge can still be bad? I've got 2 new gauges on order.
This is such an easy circuit.
I have 2 indicators, they both test good with the ground to the sender, needle moves to full hot (gauge powered of course). I have tried 2 new sending units for dual gauges (Sierra matched sender and gauges) and have read out the wire from the sending unit to the gauges. ALL individually check good. Start the engine, hook up the gauges to the sending unit and.... NOTHING. How is this possible?
I did the science project with the senders in hot water, they perform as advertised. A good wire run is a good wire run. Even though the gauges check good by grounding the S terminal, do you think it's possible the gauge can still be bad? I've got 2 new gauges on order.
This is such an easy circuit.