Oil Pressure Sensor on a 1999-2007 Chevy/GMC 4.8L 5.3L 6.0L LS Motors
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- Опубликовано: 21 май 2019
- Oil Pressure Sensor on a 1999-2007 Chevy/GMC 4.8L 5.3L 6.0L LS Motors
Today's video is pretty straight forward. I am replacing an oil pressure sending unit on my Silverado. Upon start up I get a warning chime that the oil pressure is low. Watch this video if you would like to learn how to change your oil pressure sending unit as well.
Lisle 13250 Oil Pressure Switch Socket
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I did this oil pressure sensor job in my 2006 Silverado 2500HD with a 6.0L V8 after I noticed the oil pressure gauge was nearly maxed out at 80 PSI even with the engine not running. This job was extremely difficult. I couldn’t see any of the area behind the engine. I had to use my phone camera to survey the area then do everything by touch and feel. I barely had space to squeeze my hand behind the engine block to reach the sensor. After I disconnected the cable from the sensor, I turned the key without starting engine and the gauge was at zero. So, I knew this was certainly a bad sensor. I had to remove the 13mm bolt next to the sensor in order to get a 27mm 8-point socket on it; this didn’t work at all. I tried a 27mm 6-point socket, which was better but wasn’t fully seated and I feared I might break the bad sensor if I forced it. So, I sprayed some penetrating oil on the sensor threads overnight while I obtained the actual 1 1/16” socket made for the sensor and it worked perfectly. Of course, GM engineers that planned the location for the sensor left me bloody and bruised after working back there and my knees on top of the engine. But, in the end, success. I refuse to let inanimate objects defeat me. And, I think I save hundreds of dollars if I had to pay a mechanic to remove the entire intake for much easier access. Doing this job on the on trucks with smaller engines is probably much easier.
never forget! still an inside job. thanks for the video!
I concur! Thanks for watching and commenting!
Nicely done, thank you
I used a 27mm deep socket for my sensor change. No issues. I also took out the screen with a pick and replaced it
What’s a pick. I’m trying to change my screen but I can’t get it out
@@dylanbutler9835 I am having the same issue. Did you finally get the screen out? How far below is it?
We have had a small discussion on here and it seems the screen is on 07+ if I remember correctly and not on the older models.
@@DCAutoEnhancement you are correct on this 07 up has a screen 06 down no screen!!! I found out the hard way!🤔
Did you have to use a pick to unhook the wire?
I finished the sensor relocation on my 2003 5.7 Corvette today. I did this job about 2 years ago but I didn't install the braided extender hose at that time. So, here we are again. (I bought the extender hose with fittings on Amazon for $99). I didn't want to disturb any more than necessary and I didn't want to drill any holes. I did not remove anything except the plastic engine cover. Although it was a royal pain in the butt, I was able to disconnect the old sensor and pull it out. For me, the hardest part was threading the extender hose into the engine. I could not get the threads lined up while rotating the hose. I had my son come over and somehow he got it threaded on his first try. 8-)
Now, my oil pressure gage no longer thinks it's a windshield wiper. It was continuously slamming full scale and back to zero. Now it sits rock steady at 42 PSI at cold idle. If (when?) this new sensor fails, it will be very easy to replace it.
I can't imagine why anyone would want to relocate the oil pressure sending unit!🤣😂. I imagine if I have another LS engine, I will do the relocate like you did. Where does it relocate to? Thanks for watching and telling us what you did.
@@DCAutoEnhancement The relocation is simply a vote of "no confidence" on the new sensor. They either come from Mexico or China. According to the forums, The AC Delco part is also junk. They are so unreliable, it's almost a certainty that it will fail again. So, by relocating the sensor and setting it on top of the engine, I would not have to go through the hassle of dealing with changing it again. The last one I installed failed after a little more than 2 years.
@@GregSr good info. Can it be found by just doing a search for oil pressure sending unit for LS engines?
I have a 01 and my pressure is reading 40 soon as I start it up and it don't go up or down but just last week it was reading 60 so idk if it bad but I also have a abs light and brake light and I done replace all brakes rotor and calibers so maybe the abs sensor I know the brake light is the clear bottle I put brake fluid in the float don't work or w.e inside it.
Always best to go with name brand with parts like this. Your literally only saving around $3 going with the random Amazon buy
Check the plug to. Sand the plug if it is rusty clean it with carb out if dirty.
The issue with the socket is that there are several types of sensors. The earlier ones seem to have (not always) the long style 1 pin. I have also seen a long style 3 pin and the you have the “short ones” like on the vid. On the long one you can not get a regular deep well socket to reach. The short style, yes the deewell will work. Not worth taking the risk of breking the sensor and having to remove the intake manifold to persuade the broken sensor out.
Last sensor i did acted the same way as the one he put on there. It took a few startup cycles for it to start acting “normal” maybe an air pocket under the sensor? Or oil didn’t get to it right away? Almost pulled the new sensor and replaced it again, but after a few cycles like that it seemed to me that it calibrated itself. I flipped the key on and it went to “max” then back to “min”. After this, every time i drove the truck, the gauge seemed less “twitchy”.
I was comfortable doing this because i physically broke the old sensor, so i knew oil pressure was good. If not, i would had checked the pressure with a mechanical gage, to be on the safe side.
Here is a tip, if you are about to do this job, wrapp a piece of tape on the fuel line retainer clips. They will get you, and its difficult to remove blood stains from the engine bay.
Thanks for your insight. The blood just adds character! Thanks again.
Buy the socket for 14 bucks worth it!!!
GET THE GM SENSOR ✅
I'm trying to replace the oil sending unit (OSU) on a 2007 H2 Hummer 6.0 L vortec engine.. I have the new G.M. (OSU) and special deep socket for removal. My problem is I'm a big guy and I can't even get my hand back there to remove the electrical connector off of the sensor to even attempt to replace it. There's nowhere to really position your body. Keep in mind on the H2 Hummer the hood lift straight up and stays at a 90° angle when open so you can only work from the sides of the vehicle / engine bay. I've attempted to get back in there with a flashlight but there is the fuel rail in the way, evap lines, electrical wires etc. So Any suggestions from an experience mechanic that has done this before on my particular vehicle? Any input, photos, suggestions would be appreciated. This is truly a nightmare to get done. I need some guidance Thanks in advance 👍🇺🇸💪
Deep socket standard not mm 1-1/16
I Fast Forward til it seemed the place i could catch the info i was looking for at about the 5 min. mark. it seemed DC Auto Was Doing A Great Job and i have no reason to think otherwise. however the electrical disconnect was not in the video.
I apologize for leaving that out. Thanks for watching and commenting
07 up have the screen took me an half hour to figure out that my 04 doesn't have the screen!!!!
Did you clean the filter under the sensor? The filter gets gummed up causing false readings, usually high. I had this problem and my buddy who had a 1995 big block Suburban.
There are a few years that it didn't have the screen in there. Mine was one that didn't have the screen
2006 and earlier no screen, 2007 newer has a screen
Does the 1999 - 2000 Chevys have the filter under the oil pressure sensor? Just wanted to know so I can get both instead of buying just the sensor. Thanks.
I looked on RockAuto.com to see if there was an option to buy a screen but there wasn't, so I would say that it most likely isn't there from the factory. I don't know that for sure though.
@@DCAutoEnhancement so just the 2007 and up have it right?
@@jrortiz1293 I think someone has mentioned here in the comments
The screen comes with the sensor and it won't fit underneath the sensor on the 06s down this has been my experience!
@@DCAutoEnhancement probably easier just to leave the screen filter in there and just replace the sensor
I just installed my New oil pressure sending unit on my 2002 GMC Sierra 1500 pick up truck and it’s still running low oil pressure. The engine is running fine I don’t hear any ticking noise in the engine nor the engine light is on so quick question what is the problem? I lost oil pressure four months ago but the engine started up two weeks after the problem and a lotta of my mechanics was saying it could be the oil pump but they told me to start off first thing with the oil sending unit.
Unfortunately I can't say for sure but it did sound like an oil pump issue
Replace the pickup oring on the pump if you are still having problems replace the pump you may want to check the pressure at the oil filter with an adapter them at the sensor if it's good at the filter and low at the sensor you may have camshaft bearing problem I'm going through the same thing with my 6 liter 04 waiting for the test adapter to show up in the mail I'm praying it's the pump as cam bearings will mean engine removal UG !!! Good luck to you!
@@jonperley7304 Thanks for sharing this information. To change the oring on the pump, I assume the oil pan has to come off? Luckily I don't have this truck anymore but I am curious in case I run into this in the future.
Hello, how are you? I replaced the high pressure oil pump, the ring and the sensor were replaced, and the pressure is still low
@@khaled454 I would be curious to know if you use a pressure tester, to see what the actual pressure is. If you truly have low pressure after changing the pump, I would suspect the oil pickup tube could be obstructed. One last thought, are you using the recommended oil? Btw, I'm doing well, thank you for asking. I hope you are doing well and get this issue resolved quickly and easily. Please let me know what you find out.
Welcome brother. The oil has a viscosity of 20W40, virgin oil, and the tweezers are clean. The underside of the motor is also very clean. I started the engine and there was no knocking or other sounds. Which is why I was so confused as to why. I think a faulty camshaft is the reason.
Call dufuss but I have a van and it appears that by removing the dog house but I thought I'd ask. Oh, and he said he working on 6.0 motor. I thought the page showed 4.8. just small but that's me
Did you remove the screen and clean it? I hear many people do not replace the screen and leave it out.
If you read through the comments, someone mentions what years have the screen and what years don't. Min didn't or at least I couldn't find it if there was
@DCAutoEnhancement it's pretty deep in there. Apparently about an inch. I'm about to change my 2005 yukon sensor. Hoping it doesn't have a screen.
Does the 99 5.3l z71 have the screen/filter below because mines didnt from what i can see. If so the previous owner may have done away with it all together. Is there a part number for this filter i cant seem to find it?
Someone mentioned here in the comments that 07 and up have them and the older models don't
Does this type of oil pressure sensor have a screen that needs cleaned? You said you would show it, but didn't. This is the only information I can find that even mentions it. I have a 2004 2500hd that needed a knock sensor replaced so I replaced the cam shaft position sensor and the oils pressure sensor. I didn't have a low oil pressure message before, but now that I put a new oil pressure sensor in it says low oil pressure. WTF???🤯🤯🤯
I was having this discussion with another viewer in the comments. He said he found mention of the screen on 07 and newer. I didn't show it because I didn't find it. Prior to making the video I thought it was supposed to be there. Cars can be a PITA sometimes. Good luck finding out what's causing your issue. I was afraid that my issue was the oil pump due to the mileage.
some of these NEW sending units are bad when purchased new. seen a guy who had this same problem after putting new one in so he put old one back thinking of going for another one after hooking old one back up it started working fine must have been connector problem.
@wac8516 thank you for the info, might help some people here!
Did replace the oil sensor filter???
No, I didn't see the screen on mine. Someone in the comments mentioned the years that had them.
Oring on the oil pump pick up tube needs replaced
A 6 point socket is the same
Hey man i changed my oil pressure sensor my pick up tube my oil pump changed my oil to thicker oil and my 2002 is still giving me a zero oil pressure readi g wat can it b moter sounds perfect runs normal
Maybe a broken wire somewhere. Other than that, I don't know. But changing all of that, you should be good. Maybe even a defective sensor?
Im goin towards a wire ive put 3 different sensors even one from the dealer same result
Thats funny i have the same thing going on. Did the sensor, pump and oring. Last i used the ams oil flush and went to 10w-40 and pressure went up but not ideal pressure. I might try an analog gauge next
What code did you have
@@robr2535 it might take a couple drive cycles for it to go off. Or if someone you know can erase the code, that might do it as well. Thanks for watching and I am glad it was helpful
How long can I drive. Without changing this part ? Anybody have an idea I check my oil daily and it's fine. It just went off today
This sensor can cause a light from low oil level or more importantly if your oil pump isn't pumping strong enough to keep your oil pressure where it needs to be. It could also be just be a bad sensor.
Did you install the oil pressure and it shows High?
I made this video quite some time ago. I do not recall that being the case. If I remember correctly, the pressure was between 40 and 60
hi, i have similar problem as you do. So you remove the old sensor and reinstall the old sensor back and seem to be working. Did the low oil pressure ever come back. Thanks
I installed a new sensor. It did help for a little while but came back on. This truck had a lot of miles on it. I think the oil pump was weak. I no longer have the truck.
@@DCAutoEnhancement 🤗
Your gonna break the sensor even with your fancy socket! Der per der!!!
I guess I got lucky 🤷
Is there a screen in a 99 with a 4.8
I'm not sure but I would assume so.
No
07+ only have the screen
Im wondering if the 2006 gmc screen exist? How far below is it?
That's a good question. It's been a long time since I made this video, I know it's a difficult reach but if you can get directly over the hole you might be able to shine a light and see if it's in there. I don't recall if I seen one on mine or not, I'm thinking not. I would imagine it wouldn't be much deeper in than the sensor threads in.
@@DCAutoEnhancement Exactly what I was thinking that each should be right below the sensor threads. I dont recall screen in this video either. I read a blog where Chevy started using screems in 2007 models to present which makes me question if 2006 and older models have it.
What was the end result.?
Unfortunately just the comfort of knowing that I had installed a new sensor. Initially I thought it fixed the problem but it didn't take long for an it to come back. I was worried that due to the mileage, it may be have been a bad oil pump. I sold it as is and I do not have resolution to this particular problem.
@@DCAutoEnhancement A lot of problems like this Chevy's its : just the O ring on the tube what sugs the oil out of your oilpan. Sorry for my bad english because I'm from the Netherlands.😊
@@avap2677 no worries, I appreciate your info!
Why don't you show putting the filter in?
If you are referring to the screen, it wasn't on my truck.
You did not show how to remove the wire.
That was most likely because of it being buried behind the intake. I apologize.
What a ridiculously placed item that needs replacement.
That is true. It is a little difficult to get to.