Replacing Oil Pressure Switch Sending Unit Sensor Chevy blazer 

Just replaced my leaking sensor two days ago, was afraid that I had to pull the distributor out, but thanks to you I replaced that sensor without taking out the distributor, thanks.

LOL. I thought your engine was taking a smoke break. Yep, I've had one of those sockets for forty years now. Glad some things stay the same.

Thanks for the vid. I’m positive I have that leak. After seeing where it’s located, I understand why the previous owner left it alone. It seems like when I have vehicle problems, assorted bad isht happens to me too. You’re not alone.

Thumbs up and subscribed. Fighting the bugs and doing the work, should have gotten you a medal (Let alone videoing it for us). Hope that wife knows how lucky she is, and how lucky you are to have that wife. Thanks for the video.

Thanks for the info! Now i think i know where my leak is! It starts out high, but when it heats up it drops!

Thanks bro! I had the exact same problem and yours was the only video that showed what I needed to see👍

This video lacks the crucial part of seeing the sensor actually being taken out but it did give me some more confidence that the oil pressure switch on a 4.3 could indeed be replaced without messing with removing the distributor. I was able to do it too but I will say that I can see were removing the distributor would have made it a bit easier. My issue wasn't so much of access because of the distributor but more because its tucked away so far in the back. A step stool to help get a bigger guy as myself up into the back of the engine bay would've made things easier but I still managed.

Vicks vapor rub, mate. Mosquitos hate the cedar leaf oil. Put it all over yourself when you work on your stuff outside and have no bites and clear sinuses

And that is why American car manufacturers lost so many sales, poor engineering. There is no reason to hide a oil pressure sensor back there. Glad you got it done.

New national bird 😄

I have been told that 18 lbs of pressure is normal for this generation Blazer. That info was from a dealership here in town.

Subbed your channel my Brother Thank you so VERY much for the Video ! You make it look easy lol ! I want go out a mechanical oil gauge in .But after watching you I think I'll go stick unless the sensor is over $20 . If it is a whole mechanical gauge kit with the tubing ( copper ) is $18 at AutoZone . That's exactly where it looks like it's leaking from .. Praying for y'all ! Also anyone else that has a Blazer the oil & Transmission lines going into the radiator in both sides have 2 two rubber I rings on each line that ho bad .after replacing these ( with the help of a friend ) it took care of a BUNCH of oil & trans oil leaks in the front . Godbless and Godspeed

Well I broke mine today. Good video, a special socket of course.

I fixed my no oil pressure at idle when warm by getting an oil change . I had just bought the truck and it was way over filled.idk why it fixed it but it did.

Just to give everyone a heads up on replacement parts. That O’Reilly’s Master Pro house brand oil switch that I used on the same repair only lasted 36 months (with very low milage) and blew out worse than the original; a massive a oil leak that happened all at once. I tried the Auto Zone brand and now the gauge reads 10 pounds on the happy side; going back to OEM, at least it last 16 years!

Well done sir, this helped me change mine.

I have a 93 S-10 Blazer and I'm trying to figure out what kind of switch is located on the drivers side by the spark plugs, I thought it was the temp switch for the gauge but I found that on the passenger side. Any ideas on what this switch is? It looks like it might take a 1.5 socket or larger to get it off. It has a single green wire going to it.

How were you able to maneuver the socket on to the switch? The one i bought is just to long not enough clearance to get it on the switch. Any tips??

I have an 02' Blazer ZR2 & changed mine last year, 2022. My pressure runs around 20 at idle & 50 when running.. That's with the oil cooler lines removed. It will run higher on a fresh oil change. As you put miles on it, the pressure drops. When I first deleted the cooler lines, it ran around 60 But, slowly dropped off.

Is it the same for a 4.3 88 I can’t find anything on it anywhere

Hey you have a sender and a sensor on this thing? I had my sender go bad and leak oil but after it was changed out the oil pressure on the instrument panel goes up and down and all around. Its done leakin oil thank fully. I have a 87 chevy s10, 2.8 v6. I thi

I assume this could be done very easily with the transmission out?

What color are ther wires on yours and how do they correspond to the plug???

useless your'll leaving out what I needed!

Was it misfiring before?

How were you able to place socket on old sensor when removing it?

My 94 Suburban shuts down when the oil pressure drops because the sensor is wired into the fuel pump relay.. lol. About to fix mine...

Now is this the 4.3l ? I need to replace my sensor and wanna make sure this is the same engine

Thanks I gotta change mines on my s10

Will this make you oil pressure go down when in park or at ideal bc mine is fine when driving but if it is setting it drops way down

So if it leaking inside the part you connect the switch it means its bad because i had replaced mine about 6 months ago and now it leaking again inside of there

thank you bro!!

Thanks

I was just wondering if you changed the screen inside there lol

if you have the money ,take it to a repair shop ,,,, these s10 4.3 are a bitch to work on

No you can't use the 1 1/16 socket not enough clearance in socket

pressure switch easy to get to. From above tire. Pull off small rubber shield, use a flash light

What year is your blazer

Hey what's up I'm at the front lines and about to cross over into enemie enemy territory leaking behind distributor 2000 Jimmy 2wd and see it dripping out of a hose pretty good. So yeah I'm all ears and eyes about to get in a shit full of shit.

These trucks are the worst to work on il never buy another one again. 2 days just to change the parkpkugs and wires.

Wtf is that thing smoking?

Good ol piece of shit gm design.

8t