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Why does oil pressure light comes back on after 30 sec

Disconnected oil pressure sender guage.Guage stopped working light came on again.

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Never, ever disconnect an oil sensor. It does not lie. You have no oil pressure because your oil pump is not working or no oil in the engine.

Posted on Dec 13, 2014

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Oil pressure drops to 0 then goes back up


Definitely needs resolving.
Since both light and guage drop occur, problem would appear to be with oil pump or oil delivery rather than simply a bad guage.
You could check to see if there is a common sender that may be defective.
It is also possible that the oil pump pickup screen has an obstruction.
I'd be looking at the recent history.
Has ANYTHING been done to the vehicle that might lead to this problem
Make, model, milage, maintenance history..........
All will help to track down the problem.

Jan 07, 2016 | Cars & Trucks

1 Answer

Oil presher guage .polarity .wires hooked right new guage new sender .sender wire off guage goes behind o its suposto peg doesnt


you need a new sending unit and stop unplugging things when there is power to them,you can ruin it

May 04, 2015 | Cars & Trucks

1 Answer

2013 dodge ram 1500 5.7 l hemi got flactuating oil presure on low rpm


Since its a 2013.. i doubt if its a bad pump.. unless you have overheaded the engine and caused internal damage.. buy a cheap guage and install it.. replace the oil sender unit with the hose or new sender that comes with the new guage.. and find out really what your oil pressure is..

Sep 07, 2014 | Cars & Trucks

1 Answer

Oil pressure guage malfunction how to tell if it is sensor or guage.


key on ,engine off, have someone observe the gauge, disconnect oil pressure sender, and with a test light to ground , touch one or the other pins on the connector and see if the gauge moves. If it moves ,replace the oil pressure sender.

Dec 24, 2013 | Chevrolet TrailBlazer Cars & Trucks

2 Answers

Oil gauge is stuck all the on high, after starting the engine


Sound like a posible bad oil pressure sending unit . It is normal for pressure to be above normal just after starting . At a cold idle , the oil viscosity is higher than it would be if it were warm . If the guage is reading really high for longer than normal ( after 1 minute of cold idle ) then I suggest having the sending unit checked .A sevice center can check the sending unit on or off the vehicle as well as checking pressure with an actual guage for more accurate readings .

Jan 16, 2011 | 2005 Chevrolet Tahoe

1 Answer

When my truck gets real hot the oil preasure guage starts bouncing when truck idles as soon as truck is put into park or is reved up a bit it stops bouncing


You may have a Faulty Oil Pressure Sender.
Here are some reason why your guage is bouncing:
  • Corrosion or faulty electrical connections
  • If the oil pressure gauge is pegged low after the engine is running, or is pegged high after the engine is running, or if there is intermittent illumination of an oil pressure indicator light, the sender could be faulty
You can find the oil sensor on the left hand side near the Oil Filter, as long as you don't hear your lifters ticking and making lots of noise. it's not your oil pump failing. 
Good luck and hope this helps

Apr 23, 2009 | Ford F-150 Cars & Trucks

2 Answers

Oil pressure guage sticks


u need to have a manual pressure guage hooked up to verify that the oil pressure is within specs and comes up to spec within a few seconds, don't fool around here u could ruin the engine if the oil pump has a problem, if all checks ok replace the sender, if that doesn't do it the guage needle is sticking, I have seen both at the Ford dealer I work at.

Mar 07, 2009 | 2000 Ford Explorer

1 Answer

My check guages light come on and off and the oil pressure guage goes for 0 and then back to normal


have your oil pressure tested with a mechanical test guage as soon as possiable, if it is ok then replace oil pressure guage unit

Mar 03, 2009 | 2000 Dodge Durango

2 Answers

Sudden change in oil pressure gauge


DIAL IN CAB COULD BE AT FAULT, NEED TO GET ANOTHER DAIL GUAGE AND CONNECT TO SENDER, IF SAME COULD BE SENDER, IF STILL THE SAME, PRESSURE VALVE IN BLOCK STICKING DUE TO DIRT OR U/S, OR AT WORSE !!! ENGINE WORN, THIS WILL BE CONSTANT IN MOST CASES, FAULT IN GUAGES ARE NORM INTERMITANT.
LOTUS

Feb 02, 2009 | 1993 GMC Suburban

1 Answer

98 Grand Caravan Sport oil light and Warning Bell


My friend that alarm is telling you u have low oil pressure, do you want to destroy the new engine?? Find out if the eng really has low oil pressure, it may just be a defective oil press sending unit causing the alarm, have the press checked with a mechanical guage or just replace the sender and see if that cures the issue, the alarm is part of the Body Control Module and can't be disconnected.

Nov 29, 2008 | 1998 Dodge Grand Caravan

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