The Chevy engine oil push sensor problem has to be going on for a long time. With that said, the vehicles v the most pressure switch troubles fall in the range of V-8 engines indigenous 2003 through 2012. In ~ some allude in the design year the 2007, Chevrolet realized an problem existed.

You are watching: Chevy 4.3 oil pressure sensor location

They determined to location a filter screen approximately the Chevrolet engine oil press sensor. They did this since they thought sludge and debris found its method into the sensor. Not just did this not resolve the problem, it developed another. Currently sometimes when you traction the safety filter display out, you find it fully clogged.This method if you change the oil press sensor, due to the fact that you think it"s bad and you carry out not change the filter screen around it, the same trouble reoccurs. Because the component isn"t simple to replace you really want to obtain it ideal the an initial time. Unfortunately, people usually review the very first paragraph of this articles and also just replace the an initial part mentioned.

I"m questioning you to cave in there with me and read with this entire page. Not only will I administer tips to help with the replacement of this unreliable Chevy engine oil push sensor, however we"ll talk about a many the problems connected with this repair and also the common computer and also sensor password set. Finally, we encompass pictures of exactly where the part is located.

Symptoms that Oil press Problems

The first time ns ran throughout the Chevy engine oil pressure difficulty the client complained about an oil gauge that read zero and a inspect engine light. Obviously the engine was gaining oil pressure, because there wasn"t any kind of noise.After connecting a scan device I found a password P0521 and also trouble password P0523. These codes stand for engine oil pressure sensor move performance the end of selection and sensor high-voltage. Note that it"s additionally common to discover a P0520, standing for oil push sensor circuit break down and P0522 circuit voltage low.Also precious mentioning, a warning article on the dash declared low oil, revolve engine off. This warning walk unheeded by mine customer, but you should always follow the instructions just in case. I’ve seen basic Motors pressure gauges and warning lights malfunctioning due to the fact that I first got in the company in 1984.

Standard diagnosis steps remain the same. The way to discover out what"s wrong through the vehicle is to remove the oil press sensor or switch and connect a mechanical gauge. This method you"re reading the mechanical engine oil pump pressure and also not trusting the electronics that report this reading.Although i still believe in this method of diagnosis, most human being don"t have a mechanical oil pressure gauge. However, if you have a Chevy V-8 engine in between the model years of 2003 with 2012 it"s probably safe come bypass the typical diagnostic procedure. After taking care of this trouble I have discovered nothing but a malfunction of the Chevy engine oil push sending unit.

Replacing the Chevy Engine Oil push Sender


*
Chevy Engine Oil push Sensor Location

The ar of the oil push sender remains an problem for many do-it-yourself mechanics. As you can see indigenous the photo it is a chop fit. They find it in former of the transmission bell real estate where it bolts to the motor.I dislike to call you to buy a special tool that you"ll only use one time. However, in this situation I"m recommending that you obtain the special tool designed to remove the pressure switch. The one-of-a-kind socket has an extra thin wall surface that permits you to get it over the sensor easily. A typical 1 1/16th deep socket doesn"t fit tight enough on the factory installed part. And my 27 mm deep influence socket was also thick come fit over the sensor. Opportunities are, if you very own this vehicle long enough, you could get to usage the special tool a couple of more times. Repeat failure of the sensor room common and also we"ll talk about this in the difficulties section below.

With that said, the very first step is to eliminate the plastic cover over the height of the engine. Surprisingly, even this is a fight. The front of the cover just lifts off of 2 retaining posts. However, the earlier of it gets hooked top top the rear retaining clips, since it doesn"t have sufficient clearance above. You"ll have to stick your hand in there and push down on the rear retainer if lifting up on the back side the the engine cover. The following step i do not care to disconnect the electrical connector. They usage a lock tab to hold it in place. You just pull the white lock tab up and it will certainly snap to release. Climate you have the right to depress the connector lock and wiggled it loose from the sensor. Together for replacing the sensor the screws in the rear part of the engine block into an oil gallery. A six-inch expansion attached come a swivel head 3/8 ratchet functions perfectly because that removing the Chevy engine oil press sending unit. Here is a three minute video clip that sums increase the instead of procedure quite nicely.

Problems once Replacing the Oil push Sensor


*
Chevy Oil push Sensor display Filter

The main problem when replacing the Chevy engine oil press sensor is repeat failure. This goes earlier to the root cause of the issue. Sludge and also debris find its method inside of the old oil press switch.

This is when Chevy made decision to download the filter display screen for the 2007 design year. Currently what wake up is the screen becomes plugged with junk and engine oil never ever reaches the sensor.

Therefore, people that just replace the component without instead of the screen find the repairs won"t last long or don"t occupational at all. This also leads to man that over there is something rather wrong with the automobile.

On enlarge Chevy engines the don"t have actually the display screen repeat failure often originates from lack the engine maintenance. In some cases this is no the error of the existing owner, however the ahead one. A absence of engine oil transforms can cause sludge deposits come form.

These can break loose and discover their way into the input harbor of the replacement press sensor. If you have one make certain you replace the screen along with the switch.

You will need a tiny pick come fish it the end of the oil collection in the engine block. When you object in the sensor it holds the new screen in place. With the low cost of the replacement part it doesn"t seem choose a great idea to clean the old screen. In the following section I"ll talk briefly about other worries I"ve uncovered when make the efforts to reduced corners ~ above this repair.

Replacement Chevy Oil push Sending Units

Whenever girlfriend have car parts that fail in huge numbers the aftermarket steps up to make cheaper solutions. They start mass-producing replacement parts and offering castle at lower prices.

Unfortunately, I have actually seen several worries with this ultra cheap instead of Chevy engine oil push sensors. I"ve had actually a couple of castle not occupational right out of the box. And this is not due to the fact that of the problems mentioned over in the repeat failure section.

With that said, allow me tell you about the worst-case scenario that ns ran into. After replacing the oil press sending unit v a component that expense $15, a disaster taken place when I began the engine.

See more: How Far Is Memphis Tennessee From Jonesboro Arkansas, Distance From Memphis, Tn To Jonesboro, Ar

The plastic facility blew the end of the part. Once that wake up the oil press gallery becomes open to the atmosphere. The amount of oil the sprays anywhere the engine compartment in together a short period of time will certainly amaze you.

The cleanup affiliated on both the vehicle and the occupational area included a couple of more hours to this disaster. Because that this reason, if a customer wants me to change the Chevy engine oil press sending unit I only use a Delco part. However, ns won"t get this component from the dealership, since they want almost $100 because that it. And also while I"m ~ above the subject of dealerships, once I priced this operation I obtained sticker shock. The neighborhood Chevy dealership in my city quoted me a price the parts and also labor that $500 to replace the oil sending unit. Through the quantity of money you deserve to save through doing the yourself, you have the right to afford to acquire a good replacement part, a brand-new screen and the special tool that makes it less complicated to replace and still save.