She Lost All Oil Pressure
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- Опубліковано 8 лют 2025
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Parts and tools:
Oil pressure sender (Standard Brand): I would recommend!
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Oil pressure sender (Acdelco brand): Read reviews first!
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Sensor socket:
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Electrical contact cleaner:
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Head protection:
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My 2004 Tahoe rolled over 350,000 miles yesterday on the original engine and transmission only has ever had common maintenance and a fuel pump never even a check engine light
Matt, I had the same issue with my 05. Replaced sensor then replaced oil pickup tube o ring. Runs like a champ.
Same'sies, these sending units suck
@@mv0419 Straight facts
This tahoe I just got is doing this. Trying to hold off on doing it until I cam do a cam and oil pump too
Great video. Might I suggest an entire video on that cool software you were using and how that entire setup works. Im a novice, so I would have watched that whole video for sure.
Hey Matt, with 200k + miles the main caps shims maybe worn down but you can also and I highly consider a melling oil pump 10296 high pressure high volume, this work worked great and for my ls engine and still running strong just over 300k. Hope this calls your attention. ✌️
Hey bud got an 03 Tahoe with 310k miles and she's still going strong. I gave up on AutoZone, O'Reilly's, Advanced Auto many moons ago due to the quality and the reman crap they sell ya. All electrical & mechanical parts I get them new from Napa or the dealer. Only things I get from AZ or O's motor oil, wipers, etc. Your ride has a alot of mileage it can still take I'm a witness with mine! Keep on trucking!
Change the o ring for the oil pickup tube and clean the tube itself and change the sending unit.
Also makes a ticking noise at idol ...like a bad lifter noise....changed the oil pickup tube o ring....you have to pull the pan...fixed my problem....
If you change the sensor and not the pickup tube o ring...with high mileage vehicles...you are asking for serious 🧐 problems
That happened on our suburban. We replaced the pressure sensor on the back of the engine next to the firewall and it fixed it immediately.
This happend to me when I used a k&n oil filter. I did oil a oil change switched back to fram tough guard and it fixed the problem on my 08 Silverado 4.8
Pickup tube o-ring, I also used a washer to shim my pump bypass on my 06 tahoe, idles at 40 and gets near 75 before the bypass opens up.
I had low oil pressure in my 07 Silverado last month (20psi at idle). I changed the sending unit with no change. My oil didn't have many miles on it but I don't drive my truck often, so it had been in there for about a year. I changed the oil and my oil pressure is back to normal again.
20 at idle I hear is about normal for a lot of people on the gm forums
Glad that is just the oil pressure sensor and not the engine.
I had the same issue with my Dodge Magnum Hemi. I did a spirited pull and the oil pressure light came on and the cars gauge read 0 lbs. checked with my scanner and it was actually at 50psi. Pulled the sensor plug and it was covered in oil. Replaced with a new Mopar part and it’s been good ever since. It scared me for a bit. I didn’t want to have to pull the engine.
My 6.0L I put in my 85 C10 has had about 20 psi. oil pressure for the past 35k miles. I use rotella t-6 15-40 oil and it helps. Revving my engine doesn't rase the oil pressure. Also a friend of mine said they used to have a screen in the bore that the oil sender screws in but mine was already removed.
LS engines from 1996-2016, get an oil pan gasket-fel pro permadry, get a fel pro or melling oil pick up tube o-ring seal. Drop the oil pan, clean varnish off pan, windage tray, pickup tube. Remove the pickup tube, replace the o ring on tube.
Check this for year model of engine and what o ring color you have.
www.lsxmag.com/news/identifying-the-correct-oil-pick-up-tube-o-ring-for-your-ls-swap/
www.lsxmag.com/news/identifying-the-correct-oil-pick-up-tube-o-ring-for-your-ls-swap/
Bro i enjoy all your videos im also a chevy tahoe z71 2004 a lot of your videos are so helpful for me in from texas living in mexico 🇲🇽✌🏼 God bless you man
On GM's always stick with AC Delco oil pressure sending units because yes the aftermarket ones are junk and I've learned that too many times..
Good videos.
You definitely need that sensor socket for earlier LS engines.
I use Lucas heavy duty stabilizer in my 2011 5.3 Silverado. Definitely helps make the motors last along time I drive mine hard too 170k going strong. I know people that use it with 300k plus. The high mileage motors do like that stuff lol
If you replace the o-ring and still have low pressure it can also be the cam retainer plate that has a molded gasket that can go bad. Oil flows from side to side within the gasket so you can get a pretty large leak. There are 2 types of pickup tubes so make sure you use the correct o ring for the type of pick up tube you have. I ordered a billet oil barbell kit that came with a bracket that will allow you to hold down the pick-up tube with 2 bolts instead of one. If your engine is out of the car or your transmission is out the barbell is added security. I did a melling high volume pump on my tahoe and my pressure is a bit over 40 at idle and will climb to 60psi while driving. If I really get on it it will hit 80psi
I have to change my oil pressure sensor on my 06 Silverado, I ordered the part before I realized how much of pain it was going to be to replace it.
Cheapest fix is just to run a higher weight oil lol. My 02 Escalade had a pretty work out 6.0 in it and with 5-30 in it, it would have like 20psi oil pressure when warm. Switched to 10-40 in the summer and it's pretty consistently 30-40 psi
Awesome video. Can’t wait to see how your build look like finished.
I’ve gone threw 4 ac delco sensors and threw the towel in at the 5th. Truck reads 10 psi for the last 6 years and still running strong
I remember my first oil pressure sensor as a GM mechanic 👍🏼
Richard Holdener on you tube did a video on Ls motor low oil pressure fix. Its a has to do with the O rings on oil pump pick up tube and stuff! He had the same problem on his chevy truck!
This.
LS engines from 1996-2016, get an oil pan gasket-fel pro permadry, get a fel pro or melling oil pick up tube o-ring seal. Drop the oil pan, clean varnish off pan, windage tray, pickup tube. Remove the pickup tube, replace the o ring on tube.
Check this for year model of engine and what o ring color you have.
www.lsxmag.com/news/identifying-the-correct-oil-pick-up-tube-o-ring-for-your-ls-swap/
www.lsxmag.com/news/identifying-the-correct-oil-pick-up-tube-o-ring-for-your-ls-swap/
Put a new oil pump and pickup tube in. It is not hard. It's a simple fix. While you are in there, you can take the rad out and cam swap if needed. I would do a timing chain. I have a 6.0L 2500 that I blew the motor in because I didn't replace. Pushrods were all bent and I heard clattering.
If anyone is having a similar issue and replacing this sensor does not fix it, my 07 suburban was reading oil pressure in the 10s so I ran some diesel oil for about 200 miles and it cleared whatever blockage was occurring at the oil pressure sensor.
Had to do that twice on my 04 ‘burban. First one was a faulty ‘04 sensor and The one I have on right now is an ‘07 sensor Been good ever since
Lost pressure myself have a 08 Silverado 5.3 at 178k changed the oil pressure sensor and installed new melling high pressure and high volume pump. Now have 278k still running like a champ
I have several trucks with the Gen 3 engines (4.8, 6.0, and 2 5.3's) and I take care of my parents 4th gen with a 6.2 and my wife's Camaro with a 6.2. Only the Camaro has not had oil pressure problems at one point. I have had 3 bad sending units, 1 oil pump with a sticky bypass (just replaced it out of safety) and a bad o-ring, and one I did not find any smoking guns just replaced the pump and it was back to normal. Its pretty hard to diagnose the sending unit only unless you can reproduce the problem easily and it might be best to put a manual gauge on the side of the block at the front and when its happening confirm the drop there or not. However, once you pull the connector and see oil you know at least that is bad.
My sending unit failed high, so it was east for me to diagnose it as bad.
Had the same problem with a cheap autozone sensor bought one from advanced and it’s fine now
My Yukon has about 5 psi at idle and 20 psi around 2000 rpm, but doesn’t make any noise. I have changed the pump, pickup tube, cam retainer plate, tried different oil… no change. Been like this for 3 years now, but she keeps chugging along. Ive decided whenever the 5.3 eventually surrenders, she’s getting a 6.0
Fun Fat if you look at the 2005 Chevy time how brochure you could get factory navigation
These sending units are junk, I replace mine in my 5.3l Tahoe about every 2 years, it's a pain In the ass to swap out. My oil pressure is great, it ends up being the sending unit every time. Don't forget to put in a new screen too, dirty screen will cause it to fail also.
oil pickup tube Oring fail those have a HIGH failure rate too
yep. mine failed at 82K.
Yup. But the screen doesn’t exist in the NBS. Only started with the NNBS
Casually have 280k on stock oil pump 5.3
Easy with the right ratchet setup. Wobble and extension
Dodged a bullet there buddy! Def get the oem sensor. These LS motors don't like the aftermarket sensors.
My old 07 Envoy had the same thing. Changed the sensor. Not too much longer same issue happened. Thought it was the sensor again. Parts guy asked do you have a filter? What filter? Filter for the sensor. Really? Changed the filter and sensor. No troubles since.
Glad it worked out!
It’s so funny that you posted this today because my 2013 Tahoe stalled itself on purpose yesterday because it had no oil pressure. Turns out, it had just been burning all of it oil recently. It only had 2 quarts of oil in it and it’s supposed to have 6 quarts… it was a fun day.
My 2002 tahoe has 45 psi at idle and over 60 going down the road. Yes it has the vortec rattle when you first start it up. All with 301 k
👍👍👍
I wasn’t so lucky mine done the same I believe it was o ring on pickup tube but I put new pump on it wile I was there.
My 05 02 an 08 all have did the same thing. O ring for all. The 08 we put a new pump as well just cuz. Oil pickup tube o ring is a common issue in all these sbc.
I had a similar problem in my 09 LY5 right after DOD delete. Oil pressure started nose diving. Ended up doing the crappy AC Delco oil filter from Walmart.
Yup. Normal at that mileage. Like another sub said, o ring on the sump pickup tube needs to be changed. Do it, and go another 300k. Ask me how I know
Hi Matt also dont forget the camshaft retainer plate if you do the o ring/pull the timing cover when they leak you also lose oil pressure (C R P)
Ordered some LsxMatt merch just waiting on the Tahiti merch..,
Thanks matt.needed that info if it ever comes up on my yukon
Mine did the exact same thing except it was reading 80 PSI the entire time. It freaked me out at first cause this was right after I did a rebuild on my 2000 Tahoe, but yeah it was just the dumb sensor again.
Had same problem with my tahoe...
Replaced O ring f pickup tube inside oil pan.
Check the oil pressure sensor filter. 4$ part saves a lot of headache
Happened to my suburban, but its been 50k miles and its been fine…. Besides the lifter tik and the knocking
My god mine has the loudest lifter tick I have ever heard. Its the original Engine with over half a millions miles. And it calms down once it gets up to operating temp but its always there
@@saikothesergal @YeetGamer719 LS engines from 1996-2016, get an oil pan gasket-fel pro permadry, get a fel pro or melling oil pick up tube o-ring seal. Drop the oil pan, clean varnish off pan, windage tray, pickup tube. Remove the pickup tube, replace the o ring on tube.
Check this for year model of engine and what o ring color you have.
www.lsxmag.com/news/identifying-the-correct-oil-pick-up-tube-o-ring-for-your-ls-swap/
@@saikothesergal are you sure it’s a lifter tick? I thought mine was a lifter tick and it wasn’t. It was from the exhaust manifold leaking because those bolts are prone to breaking in the head.
@@MoloneLabe No its lifter tick. After changing the oil and putting in a zinc additive (which did nothing, wasted 4$) My idle psi went from 40 to 25-30psi. Under load its 40-45 though.
Anyways, The old oil was super thick and terrible, and with it the engine would only tick when cold and it would go away after some time idling.
Impenetrable engine in my opinion. Just take decent care of it. No oil leaks or anything on mine, not even road grime
@@shadowopsairman1583 the truck is pretty much dead. Last owner never took care of it so no fluid changes or anything before he gave it to me. Then the chain in the transfer case is almost snapped too. Its got 200k. But its already had lifters and cams done so maybe.
My Oil pressure in my 2003 Avalanche was pegged at 80 all the time changed the sensor now it idles at 20, when driving it's at 40 288k miles
Me too. I changed the oil sending unit and it started idling at 40. This lasted about 10 miles then it went back to 20.
@@vamoneygroup did an oil change with a K&N filter now i have 40psi at idle now my Lanche has 291K miles
@@lovellmills7959 I'm about to order the oil pump
It has a bad oil pickup tube o-ring. It was hard and your 0-60/50 pulls broke its seal and now it is suckibg air. I have replaced hundreds with this exact problem.
Always buy oem on the sensors.
My blazer with the 4.3 vortec and the same oil pump sits at like 25 at idle after it warms up and It's been like that for almost 3 years with no issues
So the HP Tuners MPVI2 dongle is 300 dollars and the software is free. The credits are 50 per with that Tahoe requiring 2 of them. There is a Pro-Link feature that adds different firmware and analog inputs. That is makes it $550 + credits. So not exactly as bad as he was talking about. My source is the HP Tuners website.
I have the pro version so thats what I was referring too, but yea if you want to just do the fans it would be around 400. The pro is 650 with the two needed credits.
Keep the original engine is a future classic
They don’t have matching numbers on these engines
@@ryan8456 would still be cool to have, I plan on keeping my worn out 5.3 so I can rebuild it even after I replace it
It’s a classic until they are illegal in 14 years 🙄
@@LowKeyIdiots how are they gonna be illegal
@@sethl6626 🤦♂️
New oil pump
,Sending unit ,pickup tube o ring.,check all body grounds
I guess the cam will have to wait..
LS engines from 1996-2016, get an oil pan gasket-fel pro permadry, get a fel pro or melling oil pick up tube o-ring seal. Drop the oil pan, clean varnish off pan, windage tray, pickup tube. Remove the pickup tube, replace the o ring on tube.
Check this for year model of engine and what o ring color you have.
www.lsxmag.com/news/identifying-the-correct-oil-pick-up-tube-o-ring-for-your-ls-swap/
www.lsxmag.com/news/identifying-the-correct-oil-pick-up-tube-o-ring-for-your-ls-swap/
As soon as I read the description my first instinct was sending unit.
My 02 tahoe is still good, it hangs out at 40 psi and clock is reading 170k miles
I have a 03 suburban with low oil pressure and I was getting worried because it was so low with 268,878 miles. I changed the oil pressure switch. And it's in the same range as yours
Have the same 2005 just need to replace the oring on the pickup tube usually brings it back up
$6 oring
Ya I think he will be doing that soon
Good info. Appreciate the content.
Your really supposed to replace the connector for the oil pressure switch but I have done the same before, I agree tho if you still continue to have oil pressure issues I’d slap a oil pump & pickup tube o-ring
Didn’t watch video yet but you lost pressure at the sending unit. Doubtful the crank driven pump failed. Love the channel keep up the great work.
That sensor is so hard to get to! I did mine in my 2001 Tahoe ! Mine was leaking so bad. Never stopped working though!
If you replace the pick up tube o ring please replace the oil pump as well
Hp tuners is $399 with 2 credits for mpvi2
What should I do if she’s leaking oil under the truck
I headed straight to thr oil pump still working on it hope its the problem
Pickup tube o ring or
Try draining and let b12 chemtool sit in the crank case overnight then drain and put oil in
My 01 Silverado has 372,539 miles on it original engine and trans so your Tahoe is just getting warmed up.
It’s gonna be the o ring on the pick up tube same thing happened to mine
Oil pump pickup tube seal. Happens to everyone since it's retained with only one bolt.
I replaced mine w/ a pos from Oreilly’s and it failed the same way! Oil leaking through the damn connector! Beware though, I had to replace the actual AC Delco unit 3 x until it finally worked. I’d have the Delco part in, and after a few months it also failed (2x…!) crazy.
You ever thought about hydro booster swapping the Tahoe apparently it makes the brakes 100x stronger.
Yeah I changed my sending unit and it helped a bit, but in the end had to change the pick up tube O ring
Put a melling high psi pump works great
I had the same problem with Hawkeye (05 Tahoe) the o-ring for the oil tube pickup inside the oil pan. Talk about a pain in the @ss for a 12cent oring
Better than a 80 dollar oil pump
makes money for the dealers
I bet you probably already know this, but this is what I found searching for my low oil pressure issue. The oil pickup in the pan has an o-ring, when that o-ring breaks (not a matter of "if" but a matter of "when"), it's like the engine is trying to drink from a broken straw. I had a silverado (5.3) with 255K when this issue happened, and my current vehicle (2003 Tahoe, 4.8) at 220k miles. Might be something to keep in mind, since your Tahoe has some miles on it.
Replace oring on pick up tube. I had the exact same issue on a burban
I noticed mine was a little lower than normal, so I checked the pressure at the filter and it was good. Turned out the filter was plugged and it only had 1,000 miles on the lof.
Haven’t had that problem yet on my 03 z71 5.3 suburban With 300k miles
Put some rod bearings and main bearings in your engine and enjoy many more miles.
Remember the video where I commented you should change the oil pump pickup tube o-ring when you had the oil pan off? This is the reason why.
The one way you know if you have oil pressure is to lifts start making noise you know it doesn’t have any oil pressure if the lifters don’t make a noise you know it’s got at least about 10 pounds oil pressure I had about the same problem
I did a rebuilt on a 6.0 and have no oil pressure at all has a high pressure oil pump and all oil gallery are plugged rockers ain’t getting oil can someone help
Thanks for mentioning HP tuners. I saw your E-fans video and began to look for tuners in my area. Not a big selection in the Los Angeles area. What suggestions do you have for finding a tuner or someone that possibly has a way to flash the ecu?
Google search didn't come up with much. Do you have any viewers that do this? possibly in CA or neighboring states that is willing to do side work ecu flashing? Lets start a LsxMatt network!
Don’t buy auto zone sending units...I literally had two of them within a year start shorting oil straight through them like a geyser. Could have lost my engine twice i I didn’t catch that I lost oil psi. Ending up buying an OEM from the stealership and wallla no more issues
I’ve also changed the oil pickup oil ring, just make sure you get the right one (red or green)
I have a 08 chevy silverado and when i start it on a cold start I only have 20 to 25 psi oil pressure an then I get a lifter noise. But when I drive it about a mile the oil come up too 30 to 35 at idle then runs about 40 to 45 psi cruising at 55 mph. I don't know if it's my oil pump or what. What do you think it is??? The truck has 242,000 miles an I keep changing the oil when the oil life gauge gets too 50%.
Also very common for the oil pickup tube o ring to go bad!
You should put the period correct offer a Room some 2004 off road rams from 2004
o ring on the pump boost the oil pressure fix it for me
#Lsxmatt do what I did with my trailblazer i flushed my oil pan with parts cleaner to clean the oil pickup tube. Then did a double oil change. 3quarts of parts clean is all you need. I let it soak overnight
Dude - if you paid anywhere what you said in this for the HO tuners setup, you got ripped BAD. I just got my MPVI2 with 2 credits for $400, straight from HP tuners themselves. Credits are $50 each, need 2 for these things, MPVI2 is $300.
I just wanted to pit this out there for everyone else - the gear to do the tuning isn't that expensive, but it does have a bit of a learning curve.
Dorman makes the sensor and the screen. It's the best next to the Delco part. I've worked for zone, O'Reilly and advance. Advance and oreilly is the only place I get my parts anymore. Plus both of them can get me GM Delco parts next day, and the free same day delivery from Advance with a discount code is sick. Matt, use code TAVARISH25 and you get 25 percent off through Advance online or their app. Same day delivery if you order before 4pm too. Also, I still have those seat covers to send you. I've been in and out of the hospital for months.
Any racing the Camaro anytime soon?
What about the screen under the sensor
Right on! I had to replace mine it was pegged at 80 psi . I replaced mine with a Napa replacement .It lasted a week , they replaced it now works fine. Shoot the engineer who "Let's put it here"
Hooking up the computer after it told you you had no oil pressure then you gave it some gas and the gauge came up it possible could be the sensor or wire but the the computer is unnecessary
Mine did that, I changed the oil filter and it went back to normal.
What Milwaukee driver/wrench are you using at 5:56?