Low Oil Pressure Problem On GMC Envoy/ Chevy Trailblazer - Easy Fix 

Just did this repair. I removed air box and got to it from the top. Easy to reach and took 30 minutes total. Thanks for your video!

Hey thank you so much! This was the fix that stopped the "Low oil Pressure" message finally! Felt like I had been chasing that for a while but wow, that was really easy to fix watching your video.

I just completed replacing this, thanks to your video, it was a piece of cake. Thank you

I like this video, very clear instructions and very well done.

Thanks. That was very helpful. I replaced this sensor on a 2002 Oldsmobile Bravada after watching your video. Simple procedure. I probably only had a couple tablespoons of oil drip out. My connector plug had some oil in it from the sensor leaking, and I used some keyboard duster spray to clean and dry it out some before reconnecting.

Thank you very much. Very informative & extremely helpful. You did a great job, & may God bless you!

I was having this issue with my 02 Trailblazer and I wasn't quite sure what was going on. I was really freaking out hoping that it wasn't the actual oil pressure dropping. Thank you very much for the help. 🙂

Thanks very much, YaBoyCai. Worked perfectly - quick and easy. (Even without a lift... LOL). Clear and concise video. Nicely done.

My trailblazer did that a few times last night and then stopped. I was worried the oil pump was failing! This seriously made me feel better. Thanks for the video!

Great video thank you I'm gonna try this out, dealer quoted me just under 5k to do a bunch of work. I think this solves it hopefully. I'll do it myself when I find the time and handle whatever else. I appreciate the help. You did a great job at explaining.

Looks like I had the exact same problem, and this video was a great help. Thanks!

This is a great idea to check first. Sometimes it ends up being the oil pump pickup tube which is a much bigger job (9-17 hour labor depending on 2 or 4wd.) thanks for the video! You seem very handy!!!

Man, this video is great! I just got out of my trailblazer and at idle it was dropping and motor is running fine, I'm no mechanic so I didn't have any clue what was happening. This video makes me feel better that my motor isn't gonna die

THANK YOU. YOU SAVED MY LIFE WITH THID VIDEO

Thanks for taking the time to do this video

Video was a HUGE help, thanks!!

Nice job. You made it look easy

You rock for posting this video! Thank you!

Thanks bro. Great video. I gotta replace mine tomorrow

Thank you, sir. Very good video. I'll follow your instructions carefully and will let you know how it went

Shiiiit! I was about to replace the pump! Glad I caught your vid. I'll do the sensor first. Thanks a ton!

Very informative. Great job.

Thanks A WHOLE LOT for, this video. When I change mine? I Know Exactly How To Do It! ⭐️⭐️⭐️⭐️⭐️

Thank you. I needed to know that instead of having a new engine

Great video my 2003 envoy doin the same things. Only has 188 thousand miles thanks 🙏

Is this ur shop brother? Looks nice and clean! Tire machine and lift = lots of money to be made🎉

Very well done video.

Amazing video!! But what tools did u use? It always helps to says what u ar eusing! Looks like a 1:2 ratchet but what socket u using??

Thank you! The video was very helpful! Problem solved!

Thanks for your help!

Great Video! Thanks!

Thanks did this in 10 min good video

Good job, bud. Thanks!

Thank this was very helpful

I liked your video a lot, thanks for making it and sharing with the world. Does this apply to the 5.3 liter V8 engine too? My mechanic said the seals in the oil pump could be bad and changing these would mean removing the carter cover, and many components of the front driving train.

Thank you SO much!!!

Thanks, great video

Just a tip, mentioning the size of the socket needed would help much more! Great video!

This help me out so much !!!!!

Outstanding.

Good video thanks

I had the same problem brother.. mine was leaking oil.. so I jus use carquest oil pressure switch 👍🏼

Thank you I fixed my car

Awesome, but I didn’t know you need a special socket for it,, I don’t have it so I guess I’ll just have to take it to my mechanic. But very good informative video brother. Ty-

Thanks from Russia👍

I hope this work for my car.

That's what she said 😂😂😂 never gets old.

I have an 06’ Envoy with the 5.3. Gauge was doing the same thing. I replaced the part but it’s still losing pressure. Any thoughts or ideas?

Appreciate this same problem but I’m replacing oil pump and oil pressure switch good info thanks

My sons trailblazer just started doing this and we smell an odor when it happens. Could this be something else instead of the sensor when we smell an odor? Also it happens at idle and not really while driving

thank you

Hi my friend thanks for your video my question is does how many miles do I can drive my envoy having that problem????

Is it the switch with the gauge or the light?

Do u need to to have that special socket or can you use a wrench to crack it loose? My oil pressure drops at idle, like at lights but as soon as I give it gas and drive, the pressure goes back to normal. I haven't done an oil change, or filter, or pump, or this yet. I figured an oil change and filter first to see if that fixes it. It needs a change anyways haha

So I have a 2006 trailblazer . N it’s not due for a oil change I don’t have any leaks that I kno of since there’s never a oil spot on the floor where I park it. I’m scared to drive it thinking it doesn’t have any oil . So it could just be the sensor then?

Grasias por en señar ma estro

Awesome

Hi, can you tell something about my problem? I got "low oil pressure" ONLY on cold startup (not always). It's don't back to normal by itself, don't move around, just lay on zero position. Only on cold startup. If i warm up my car, stop the engine and startup again - gauge shows normal readings and don't bother me, unless the next cold startup. All videos i've seen about "low oil pressure" - guys have their issues on drive, or idling on the stoplane... But no one get's it on the startup. What do you think about it?

Mine does the same thing but now its got a knocking noise underneath. And it sounds like its coming from the oil pan. What could it be?

I just have one question are you still able to drive the car when this problem is happening with your car? Before we are able to buy and fix the sensor or will it shut off?

شكرا ربي يحفظك

Thanks for the video, my situation is that I replace the oil pressure sensor and still the oil pressure at idle goes down, when accelerate pressure normal, no engine noise, oil level normal, oil is almost new. What could be the problem.

What could cause the oil pressure to be high

So wait...did u actually lose pressure or just the gauge bugging out? Cuz mine did the same and I kept driving till I froze a lifter up n towed home. So I really lost pressure which I assume is pump change time no? Unless the switch effect actual pressure

Is their a filter for the sensor and should you change that as well?

I was looking for the part , is it called oil pressure sender?

Will this sensor cause my truck to not start up? I have the same problem with my sensor and all of a sudden I break down.

To change that sensor. Does it need to remove the oil before or no?

Always thing all the cars in america they are clean no oil leaking scattered everywhere..

Wish whenever using tools, you would say what size need..I'm learning as i go but tips on that would be very helpful

What size is the socket to remove the sensor?

Can I still drive it with a bad sensor? Or will it mess up the engine

If it does this and temp goes up your pump is no bueno right?

will this work with a 2010 GMC Terrain

I have a 03 trailblazer that didnt run for about a year and a half. i recently replaced oil but not oil filter, today i ran it the most i have in a while but when ever i would come to a stop the pressure would go down to 0 and as soon as i press the gas to accelerate it would go back up to normal

Great video but is this fix for a 5.3l V8?

Don't use the FRAM filter, and you'll be fine. I had a problem with low oil pressure. I changed everything I could. Eventually the problem was solved only when I replaced the FRAM filter with one from ACDelco.

This is for trail blazer too ?? 2006

I drive a 2003 GNC Envoy and I replaced the switch and im still having that Low Pressure Read and to Stop Car. What else could be the problem? Oh. I do have a loos VVT Valve.

This is the same sensor when you have a high psi too?

Good video for alot of folks, But I have one STILL doing it after replacing oil sensor AND VVT solenoid (both were leaking from electrical connectors profusely)...

dont forget the equinox cars either same motor setup

do I need to disconnect the battery before I start?

So is my engine about to blow up?? Can I drive it? Is this just a problem with a faulty sensor?

I have a trailblazer but the thing is my truck just shutdown plus the low oil kept on blinking in and out

What size of socket it’s . Please

I replaced it recently, thought it did the trick, but a month later same message on the dash. Low oil pressure

My 4th vehicle doing oil pressure sensor replacement on just could find it at first lol

Yoooooo my son BACK on it

Is this the 4.3 liter ?

WILL THIS IMMOBILIZE THE TRUCK IF IT COMPLETELY FAILS??? WILL IT SHOW ANY DTCs???

What size socket do I need?

My 05 trailblazer ext ls wont start I swapped the motor from a 02 trailblazer it cranks but wont start an changed the fuel injectors what could be the problem?

What if its already switched and has still the same problem? 40psi to 0?

PLEASE HELP! MY 2008 TRAILBLAZER LIGHT IS doing just what you are describing. I changed the sensor already. It is showing shut down engine. HELP

If you unplug the sensor, the gage will always show at least 40psi. If you actually want to know the real oil pressure, install a mechanical gage.

ارجو افادتنا بهذهانا لدي لعب بعدادات التابلو في السيارة عداد الزيت والبنزين

I have a v6 2002 envoy, runs fine if I'm going fast or gunning it past the 2 on the rpm gage. If I come from a stop or bumper to bumper slow traffic, the engine spudders and vibrates but it's easily surpassed by pressing the gas in more. I only have readings on the DID where the odometer usually is, and it says low oil pressure and then says stop engine. But it's been running fine for quite some time. Wondering if it's the same problem, but mines at an earlier stage? Mechanic said my codes read o2 sensor malfunctions and emissions problems with a code saying its running lean. Idk what to do and neither does he. Oils full. Very confusing.

I did this and my oil pressure is still low. Is it my pick up tube or oil pump??

Splash’n💦👀