Question about 2005 Chevrolet Avalanche

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How to replace the oil sending unit

Oil gage not working

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  • Chevrolet Master
  • 3,103 Answers

The sending unit unscrews from the hole it mounts into and some have a multiwire connector on them that needs removed before unscrewing the sending unit.the parts store has a socket for removeal if you dont have one...good luck..

Posted on Jan 21, 2013

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: 2001 chevy venture oil sending unit

HI..
On a problem with oil pressure sensor leaking.
99% you need to replace the sensor with a new one.
Because if you can see the leak is not for the tread or gasket of the sensor.
If you can disconnect the the wire from the sensor.
and try to start you will see the leak coming from inside on the plastic, where the pins. of the sensor.

OK.. I hope this information work for you.
I work on Cars everyday.
Thank you fo use fixya.

Posted on Jul 13, 2008

tripletauto
  • 1450 Answers

SOURCE: Oil pressure sending unit 83 caprice

i believe it is back by the distributor at rear of engine

Posted on Oct 01, 2008

  • 6 Answers

SOURCE: what is a oil sending unit on 99 chevy venture van?

easy to change u just need a special tool for removed on front of motor at right of oil filter its look like a coolant sensor or a little bottle with a connetor removed the connector and take the tool to remove

Posted on Oct 11, 2008

ftw1952
  • 10319 Answers

SOURCE: oil sending unit

It should be on the rear top of your engine block next to the intake. Three wires goes to it if its a 4.3

Posted on May 29, 2009

bschilz
  • 2049 Answers

SOURCE: Where is oil sending unit on 2003 Chevy Avalanche

It's at the very back of the block, top-center, under the intake manifold.

Posted on Jan 10, 2010

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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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If you know for a fact the sending unit is working and you do have 35psi when the engine is hot, it could be the gauge on the dash. You may need to install an external gauge, manual or electric. Or replace the cluster.

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Info on oil gage


The oil gage and the fuel gage both use the same power and voltage control. so if the fuel gage is working the oil gage will work too. The sending unit is mounted on the motor and it gets hot and cold and has to put up with the acids that build up in the oil. this uit with a wire connected to it screws into the engine near the oil filter. The units that work the gage are quite expensive and many peaple just go on without one. I have a trooper and the gage does'nt work on it either and they cost alot and most stores don't have them. Long Island City, NY 800-566-8334 761603608.jpg 873951248.jpg$116 at my store and they have to order it from the wearhouse.

Aug 11, 2011 | 1995 Isuzu Rodeo

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The oil gage went to high and we changed the filter and it has new oil but its still registering high what is it


Remove oil sender unit on engine scew in a oil pressure gage if oil pressure ok replace sending unit if not oil pump needs to be replace

Jun 27, 2011 | 2005 Nissan Xterra

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Low engine oil pressure on a 1997 cadillac catera. I suspect the sending unit. Would like to check with a manual gauge. Where to tap in to engine oil pressure?


in order to check the oil pressure, you have to remove the oil sending unit, then screw in the adapter of the oil pressure gage, and then remove the start relay or fuel pump relay from the fuse and relay box, under the hood on the drivers side, and then crank the engine over 3-4 turns, and then record the oil pressure, and then disconnect the oil pressure gage, and then re install the oil sending unit, replace the start relay or fuel pump relay, and then start up the car, and check the oil sending unit , to make sure it is not leaking, if your oil pressure checks out within the specs, then you are fine, if it gives you a low reading, then you could have a bad oil sending unit , or a oil pump going bad on you. i would replace the sending unit first, then see what the gage shows.

Jun 13, 2011 | Cadillac Catera Cars & Trucks

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1989 Dodge Ram 250 with 318 motor, oil pressure gage has quit working, engine oil is at proper level, someone said that there is some kind of an oil service switch that my need replaced.


you have an oil pressure sending unit located at rear of engine next to distributor. that would cause the oil gauge not to work. also look for a short in electrical wires to oil sending unit. hope this will help!!!

Apr 07, 2010 | 1989 Dodge Ram D-Series Pickups

1 Answer

The oil gauge is not working had a new put in but that wasnt the problem.


One of four things is happening:

1. You are very low on oil, but probably you already checked that

2. The oil pump is not working, but the engine would not last long with no oil circulating.

3 The oil pressure sending unit is defective. This is a unit that send an electrical signal to the gage proportionate to the pressure it is measuring from the engine. If the pressure gage is bad then you get no signal and nothing is measured on the oil pressure gage. Also check the wires from the sending unit to make sure they are not frayed or broken.

4. The oil pressure gage is defective. Yes even new guages can be defective. Check the new gage to make sure is is operating properly. (external voltage check)


The only other possibility is that the engine is loosing lots of oil pressure due to excessive wear.

Good luck

Mar 10, 2010 | 1998 Chevrolet S-10 Pickup

1 Answer

The oil presure gage goes up and down from zero to


All you have to do is replace your oil pressure sending unit.It`s in the rear of the motor by the left head.This is the drivers side.You need a special socket to remove the sending unit.Good luck.

Dec 05, 2009 | 2003 Chevrolet Silverado 1500

2 Answers

Truck runs great but the oil pressure gage goes zeros out


Did you find the sending unit and was that the problem?

Oct 05, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

1995 jetta oil light buzzer problem


You need to install an oil pressure gage. If the pressure is good then check the wiring to the sending unit. It could be a bad sending unit but don't replace it until you test the oil pressure. If you don't want to add the gage inside the car you could install it under the hood or use a manifold gage, it's mechanical so oil flows right to the gage instead of a sending unit, you don't leave it on the engine. Mechanics use them to test engines and transmissions. You can buy either at a auto parts store. If you have low oil pressure then either the pump is bad, the oil pump pick up screen is clogged, or the engine is worn out (bearings, valve guides, piston rings).

Feb 05, 2009 | 1984 Volkswagen Jetta

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