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Oil sender Idiot Light

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flakedog
Join Date: Aug 2004
Posts: 2 South Carolina
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2006-02-28          125294


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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Oil sender Idiot Light

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Peters
Join Date: Feb 2002
Posts: 3034 Northern AL
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster  View my Photos  Pics

2006-02-28          125300


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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____________________________________________________________________________________
Oil sender Idiot Light

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jdgreen
Join Date: Jul 2003
Posts: 231 Maryland
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2006-02-28          125320


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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