Bad sender unit?

ScottinBrooks,ga · Jul 7, 2008

Hi folks-

Just installed a new Agco OEM temp gauge on my 1969 180 diesel. The needle was kind of shakey, then went to full hot ( off the scale ) and stayed there, even though the tractor was cold.. Could the problem be a bad sender unit at the thermostat or is it the gauge? Trouble is the old gauge hasn't worked in years.

Thanks for the reply

Anonymous-0 · Jul 7, 2008

Was the sending unit wired for 12V+ or 12V-, it makes a difference. An improperly rewired tractor could also be the problem.

ScottinBrooks,ga · Jul 8, 2008

The sending unit was not replaced. It's the original. Only thing replaced was the gauge and I think it's correct.

Anonymous-0 · Jul 8, 2008

With some tractors, you ground the wire to the sender, it should peg the needle- that means the sender is bad. No reaction, replace the gauge.

Bad sender unit?

ScottinBrooks,ga

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Anonymous-0

Well-known Member

ScottinBrooks,ga

New User

Anonymous-0

Well-known Member

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