Oil sender Idiot Light: John Deere Review  -- John Deere Tractors Discussion Forum and Review Oil sender Idiot Light: John Deere Review -- John Deere Tractors Discussion Forum

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 02-28-2006, 09:34 Post: 125294
flakedog



Join Date: Aug 2004
Location: South Carolina
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Posts: 2
 Oil sender Idiot Light

Had a problem with the oil "idiot light" on my JD 755. The light started to "flicker" very dimly and varies in dimness as you rev through the RPMs. It does light up bright and fully illuminated when cranking and then starts to flicker when running. The flickering stops at high and low RPMs. I changed out the oil and put in a new sending unit. The light still "flickers" dimly. Could this just be a bad ground connection or could there be a serious problem with the oil pump? I have not put a gauge at the sender and measured the pressure yet but I think that I should.

Does anyone have a suggestion for troubleshooting or an idea of what the oil pressure should be when I do measure it?






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 02-28-2006, 10:55 Post: 125300
Peters

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Join Date: Feb 2002
Location: Northern AL
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 Oil sender Idiot Light

I would check the electrical connections to the sender or the sender it self. There is no varying degree on the switch, it is not a pressure tranducer only an on off. It is likely sticking or more likely the connector is loose or corroded.






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 02-28-2006, 19:27 Post: 125320
jdgreen



Join Date: Jul 2003
Location: Maryland
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Posts: 217
 Oil sender Idiot Light

I would check your pressure with a gauge. Depending on oil temperature and rpm, you should have somewhere between 25-50 psi. The light should not flicker until pressure drops to 6- psi. It sounds like you might have a wire shorting out somewhere. If the wire between the light and the sender is pinched or rubbed through somewhere, it will cause this problem.






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Discussion Boards > Active Subjects > Messages as Posted > John Deere Review Forum

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