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2014 5.0 gauge & warning no oil pressure

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Old 07-02-2016, 09:39 AM   #1
The Drifter
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Default 2014 5.0 gauge & warning no oil pressure

Last Saturday my truck suddenly displayed no oil pressure on the gauge an on the warning center in the dash I shut it down got out an checked the oil all was good restarted it and all was well hasn t happened anymore just wondering has anyone else had this issue I am hoping at worst a connection or bad sending unit
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Old 07-02-2016, 09:49 AM   #2
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Or an electronic fluke. I think if you read the forum you'll see a few different electronic issues. People stop, turn off the vehicle, restart, and see if it returns. Often it doesn't. As they say - _h_t happens. If it repeats itself, take it in (ideally grab a picture or video for the dealer). If you're close to warranty ending, take it in.
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Old 08-10-2016, 04:22 PM   #3
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The oil pressure sending unit is a normally open switch, that closes with about 7PSI of oil pressure. So, the gauge either shows no oil pressure, or reads about half-scale when the switch closes. It will not show variations in oil pressure, that you would expect with an oil pressure gauge. The sending unit contacts could be going bad, or the connector to the sending unit could be opening up. I would try re-seating the connector first, and if it happens again, replace the sending unit.
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Old 10-12-2017, 08:06 AM   #4
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Default Oil Pressure loss

I had this happen to me yesterday 4 times. Pressure gauge drops to zero, get the warning tone and message then pressure goes back to normal and the warning clears before I could even acknowledge it. There is a low level sensor as well so I knew level was OK. Checked dipstick and verified level is fine. I am guessing its a bad sending unit. $5.90 from the dealership. Going to change it out tomorrow when I change out my bad VCT solenoids. (another issue for a different thread).
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