Question about Chevrolet 1500

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Hello can you please help me find the oil pressure sending unit on my 1500 chevrolet truck i can seem to find it so please tell whear this unit is thank you

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Back behind the intake by the distributor. It should have one wire running to it.

Posted on Jan 17, 2009

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It wil look like a little spark plug sticking up out of your motor on top and to the back on the left side it will have a wire connected to it.. good-luck ray

Posted on Jan 17, 2009

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1 Answer

Chevy 2005 silverado low oil pressure replaced oil sending unit and the cluster no noise from engine


Put a gage in the sending unit hole and see if the oil pump is weak, that is the best way to tell if the engine pump is ok.

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Where is my oil presser sensor located on a 1999 chevrolet 1500 5.3l v8 vortec?


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Oil pressure guage has pegged on the high side. Would this be caused by a faulty Oil pressure sending unit? Engine is not overheating and seems to be running fine.


Bad sender is most likely, but could also be stuck oil pressure relief valve. You need to be sure, or the pump could break and destroy the engine.
Try a cheap mechanical gauge instead, screwed into the sender hole. If pressure good there, then check the sender with ohmmeter. If 0 or infinite ohms, replace sender. If not, see if gauge drops to 0 when sender disconnected. If not, then gauge bad.

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Oil pressure gauge is reading 80 psi. I had the


The oil sending unit is located on the engine block behind the drivers cylinder head area.You have to climb up on the motor to see it cause it is hard to see behind the wiring harness.You may also want to purchase a new sending unit because it is very long and you might need to buy the sending unit socket to replace it.Hope this helps.Good luck.

Jul 20, 2010 | 2003 Chevrolet Silverado 1500

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Oct 05, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

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Good luck and hope this helps. When replacing the oil sensor, make sure you do not use and teflon tape or silicon. The sensor is tapered and need a good ground to the engine to get proper readings.

May 28, 2009 | 2000 Chevrolet Silverado 1500

1 Answer

Hi oil pressure


You have a bad oil pressure sending unit, or bad lead connection to the sensor. 
Try to have the engine scaned like at Auto Zone and they can confim if it is the sending unit and they can give you the how to instruction's to replacing it.
Good luck and hope this helps. Ps part not that expensive

Apr 09, 2009 | 1999 Chevrolet Silverado 1500

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Cant fine the oil pressure sending unit on a 1500 chevrolet


I would say most of the oil pressure sending units are right in the same area as the oil filter.

Jan 16, 2009 | 1999 Chevrolet Silverado 1500

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My 2005 Chevy 1500HD when cold there is no oil pressure accoring to the gauge. But after a few minutes of running and then a restart of the engine the oil pressure is bake to normal.


most likely the problem is the oil pressure sending unit or the oil passage to the sending unit is partially plugged, that is unlikely, I would replace the sending unit 1st.

Jan 15, 2009 | 2003 Chevrolet Silverado 1500

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