S10 Blazer FREE FIX Oil Cooler Removal

I had a leak in my oil cooler lines on my 93 S10 blazer, since i don't require an oil cooler i decided to completely remove it during an oil change

[@mikeb462]

Thank you so much. I was stranded on the side of the road with a blown oil line and was able to fix this and save my vehicle but some basic tools I had in my blazer. The separating that adapter with the Allen head really saved my ass. Thank you so much brother

[@RobHoffmann20]

Very happy it could help you out! thank you for the comment and sharing your story. Cheers!

[@bvnseven]

THANK YOU!! The Cavalry arrived just in time to save my bacon!!

[@stanley2004]

About to do this on my 1991 Sonoma 4.3L ...so tired of the leaks. Outstanding video by the way. Thank you so much.

[@barryjames9404]

this worked great on my 89 S10 Blazer 4x4, replaced the oil cooler line 3-4 years and were leaking again till I did this fix. thank you

[@RobHoffmann20]

Thanks for the follow up, glad to hear it worked out Cheers!

[@johnnybaber1804]

Get to know my Orleans replace that 10 years ago and good I don't bad that match. You got any ideas about the rear bumper molding mine came off too I got two screws in the front one it's 92 with the same setup Vortec S10 Tahoe digital dash like to find a cruise control cable for it

[@denverkenyon3203]

Did you need to get a stubby filter or does the original size work?

[@stpmusiksoundtimeproductio3912]

heading out to do my 97 s10 finally figured out that this is my oil leak hopefully all goes well thanks a bunch for the info perfect

[@effenfish661]

did it work for you? i have a 95 s10 i want to try this on.

[@stpmusiksoundtimeproductio3912]

@@effenfish661 yep!!!

[@stpmusiksoundtimeproductio3912]

@@effenfish661 yes but be careful removing your 2 torx screws I stripped one and it took alot of extra bs getting it out but yeah no more oil leak it even increased my oil pressure about 8percent

[@Mike_The_Hog_A_Nator]

Deleted mine in my 02' Blazer Zr2. No more leaking lines & oil spraying everywhere. My Oil Pressure gained also! No difference in normal operation Temp, even when pulling my trailer or under a heavy load. I did try a 180° thermostat but that set off a Check Engine Code, "Coolant Temp Below Threshold"- so the 195° went back in & no issues. You have to use a little oil filter & you can reach it to replace or install with a small 3/8" drive metal oil filter removal bowl socket thingy for oil filters & a long extension

[@johnnybaber1804]

Appreciate the info on the thermostat. 200° it's where it runs on the according to the dash I was thinking it could be cooler they gave me 200 to put back in it but I haven't done it yet I living in Texas I wanted to be as cool as you can be tripping the sensors it'd be nice to get more than 14 miles to the gallon difference

[@rayskaggs7543]

Excellent video, not a bunch of talk or crap, right to business and explained crystal. Getting ready do my 2003 S10. Thanks Bro!

[@kendallholmes3818]

We did my 03 s10 a couple of years ago, and moved the filter back to beside the pan. It is really hard to get to and I am having a hard time getting the new one in. Any tips? Or skinnier filters to try?

[@15thstreetgarage23]

I’m not sure where you live, but I am in Minnesota. In the winter the oil becomes super thick when it is -30 outside. I am deleting my cooler on my zr2 blazer as well, but what you forgot is that you no longer have an oil filter bypass valve if the oil is too thick or the filter clogs. It would be better to buy the $5 adapter of off summit that includes the bypass valve. But great video! Good luck!

[@RobHoffmann20]

15th_Street_Garage good point! I do however run 5W30 synthetic and the blazer batteries are removed from the truck during the winter. Im in southern Ontario. Thanks for the tip and comment. Cheers!

[@realirishspirit]

15th_Street_Garage my 4x4 sonoma looks like that same deal here. I do 4wheel it. But don't drive it every day either. Think I could get rid of that an just slap my filter on there an fix the leakages.... What's that part name on summit so I can look it up? Or add a link for me would be awesome! Thanks. Mines a 97 zr2. 4x4 5speed.

[@15thstreetgarage23]

There should be one in your oiling system already on your Zr2 that you can unbolt and remount just onto the engine, but then you have to run a short oil filter. I actually found out that 1992-1996 Lt1's sometimes came with an oil filter adapter that moves the filter in towards the pan so that you can run the stock filter without hitting the front driveshaft or differential. I should be getting mine in the mail sometime this week, I found a guy on a facebook forum for LT1 engines in Texas. Hopefully he follows through. GM part number 10168497. Good luck SIKZR2. The oil cooler lines are one of the biggest weak points on a stock Zr2.

[@TheCrawfordaz]

Thanks for the tip, changed mine out on 2000 S-10 4.3. I took my fitting with me found STP 3980 is little bit longer filter that works with 4.3 V-6.

[@RobHoffmann20]

Glad you found it useful. thanks for the comment!

[@johnnybaber1804]

I hope it's as good as the AC filter I'm trying at the STP oil straight 30 weight I always use the STP additive with all the oil changes slippery stuff

[@effenfish661]

very well explained. i plan to do this in the spring

[@effenfish661]

i did it, and it works perfectly!

[@Brainbaskit]

Just did on 97 Astro, awesome

[@antoinesaunders2543]

Definitely doing this. Thanks for the video!

[@RobHoffmann20]

Best of luck! Thank's for watching. Cheers,

[@CaleSchibler]

Many, Many thanks!! This is a lifesaver! Cheers!!

[@RobHoffmann20]

Thanks for the comment, glad it helps out. Cheers!

[@DrShankenstein]

As always... Well done!

[@RobHoffmann20]

DrShankenstein Thanks!

[@wyatthenley3985]

Can someone please tell me what size thread it is that threads up into the block.

[@paulthepainter2366]

This made my 320k sonama cease leaking any and all oil. Pressure increased and steady. Seems to good to be true. If no follow up from me you can assume it's a good fix.

[@RobHoffmann20]

Paul The Painter glad it helped you out! Thanks for watching and for the comment. Cheers

[@luissonoma6255]

Paul The Painter Follow up...

[@imasimpforurmum472]

I have a 1995 Z71 with the 350 in it. Will this work for mine? Also, couldn't you just put plugs in the inlet/outlet holes on the adapter?

[@ThomasWilliams-uq9lo]

This is what I was looking for to solve my leaking oil lines, thank you. Btw what size is the Allen wrench used to remove the filter spout?

[@RobHoffmann20]

Thomas Williams I think 10mm Allen head and T40 torx for the adapter

[@ThomasWilliams-uq9lo]

Awesome thank you

[@RobHoffmann20]

Thomas Williams Happy to help. Cheers!

[@TheSpankdizzle]

Thanks for the video save me some money

[@RobHoffmann20]

Glad it helped out. Thank you for watching. Cheers!

[@stanley2004]

I have a question, can you use the same oil filter after removing the adapter? It seems that the diameter of the filter housing on the engine block is smaller than the one on the adapter. It may be just an optical illusion when looking at the video...not sure.

[@RobHoffmann20]

The same filter fit with no issues for me.

[@stanley2004]

@@RobHoffmann20 Thank you. I appreciate it.

[@luissonoma6255]

Is this a 4.3? I have a 2.8V6 with a 5 speed and it’s a little more tucked in on the side of the block. I just bought the truck and the previous owner told me that it need the oil housing gasket. I have it and I’m thinking about doing it but don’t really see any oil leaking and I’m not sure if it has cooler lines on it. So I might just change the oil and call it a day.

[@RobHoffmann20]

This one is a 4.3L. Sorry but I'm not really familiar with your engine enough to offer guidance. Thanks for watching.

[@luissonoma6255]

RobHoffmann20 Thanks for the reply. I skipped it because I didn’t see any saturation by the gasket and I think I would’ve had to lift up the engine or something because the bolt that holds it sits up against a motor mount. There was no clearance to get anything in there, let alone taking out all the way.

[@xflippyxxcheckoutmytiktok4900]

Questions I followed your steps but why when I'm on park my oil on the dash is high but when I'm on drive it goes down to 40?

[@RobHoffmann20]

I had a similar issue when my oil pickup in the pan had fallen off the pump. also oil is typically thinner when it's warming up. the initial start should show the most oil pressure as its cold.

[@xflippyxxcheckoutmytiktok4900]

@@RobHoffmann20 you saved me alot of money. Ty and love your Blazer.

[@TheWalterHWhite]

Good video with great narration! I can't stand when there is stupid music or pictures. However, removal and replacement of this assembly is very easy, and not to mention it's quite cheap. There are updated cooler line's which aren't prone to leaking. The oil cooling has a ton of pro's and zero con's. Also, I don't know why you have an MSD ignition system on any modern GM that isn't crazy modified (in the case of the 4.3L say a turbo with a marine MPFI intake). The stock HEI system is far more superior to any aftermarket system. Multiple tests and dyno run's have tested the theory on GM 4.3's and 5.7's and there was no gain.

[@RobHoffmann20]

walter white Thanks for the feedback and comments, I did not know there were replacement oil cooler lines avaiable. Also regarding the MSD, originally I had issues with ignition on the truck as well as power losses, it stemmed back to the ignition system as a whole. Replacing the coil and installing the control box provided a more reliable idle and smoother operation. The distributor began to fail and after that it was replaced with a new MSD model which now has removed any play within the original. I'm not going to argue the O.E. GM equipment wasn't better than current however for me having a failing system this was an upgrade.

[@TheWalterHWhite]

I will admit, I myself have had run in's with the distrubtor systems on vortec engines. When working properly, it's very reliable and powerful. However, when it's acting up it can throw you for a loop. One reason I'm going LS : p

[@RobHoffmann20]

walter white I would enjoy going the same route one day in the future. I would have to transplant the 4.3 into my Chevette, haha that would be a riot to drive!

[@ug9191]

@@TheWalterHWhite "when working properly it's very reliable" lol

[@johnschwarzenbach100]

Seems awfully easy fix, to increase oil pressure. My 4 wheel pressure drops to near zero when idling, otherwise runs about 40, is the oil cooler removal just as simple? Is it not necessary to plug the radiator take offs?Would I need the adapter for the filter, since it is a 4X?

[@RobHoffmann20]

Im not familiar with the process on a 4wd truck however i can't see this increasing oil pressure unless the cooler is plugged up. Plugging the unused oil cooler ports is not necessary. You may have some luck joining a s10 group where it's likely they could answer your question in better detail. Thanks for watching. Cheers

[@mpcustoms7803]

When you took it off did it have two gaskets that went on

[@RobHoffmann20]

MP CUSTOMS mine was only RTV'd to the block, we rebuilt it recently so the original gasket is long gone

[@realirishspirit]

my 4x4 sonoma looks like that same deal here. I do 4wheel it. But don't drive it every day either. Think I could get rid of that an just slap my filter on there an fix the leakages.

[@wismar1971]

I have a 1991 jimmy 4x4. Is this for 2WD only?

[@RobHoffmann20]

Hi, it should work on the 4x4 also. Thanks for watching. Cheers

[@n3dnarbofficial95]

Where'd you get your ramps?

[@RobHoffmann20]

Thanks for watching, Those ramps were home made. You can find some videos on the channel of the construction. They are incredible helpful when working below a vehicle.

[@EMTxLIFE]

Do I need to plug the holes where it connects to the radiator? I'm trying this right now.

[@RobHoffmann20]

That's not necessary, the oil cooler portion of your radiator is a closed loop meaning it's totally isolated on its own. once you disconnect the lines and whatever residual oil in that cooler drips out there won't be anything else in there. Unrelated to this video shortly after I replaced my radiator, when I ordered it I simply ordered one without the oil cooler so now I don't even have those ports available

[@bvnseven]

@@RobHoffmann20 I think I will go to the hardware store when I do mine tomorrow and by threaded caps to put over the fittings. It just makes sense to me to do that and it looks "complete".

[@chief9161]

So what happens to the lines going into the radiator? Do you you plug up the holes or just leave connectors in?

[@RobHoffmann20]

You could Install hole plugs or bolts. you could also leave them open. I ended up replacing the rad when it cracked and just opted to buy the cheaper rad without the oil cooler.

[@chief9161]

@@RobHoffmann20 Awesome, and thanks for the video and info! Blessings!

[@blainerincon6552]

It’s a closed loop system so nothing will be affected whether you plug them up or not

[@kingbam7062]

What size allen key you used

[@RobHoffmann20]

10mm Allen key and a T40 Torx was what I needed to remove those parts

[@jamesbenson4758]

Will this work for a 1998 jimmy 4.3

[@igotatan1]

So deleting my oil cooler off of my 07' 6.0 vortec, it's a different setup, but what I'm wondering is the dip stick will read lower without 6 quarts in her now...

[@RobHoffmann20]

My understanding is the dipstick would measure the level of oil in the pan. So if you're eliminating the cooler the level of oil in the pan shouldn't change. ( of course that's assuming you've got the correct level in there after removing the cooler)

[@igotatan1]

@@RobHoffmann20 I know it takes 6 quarts, it should only take 5 quarts without the cooler, but it still takes almost 6. lol

[@RobHoffmann20]

@@igotatan1 that's funny! im sure as long as it's not over filled it wont be an issue

[@david_bmx1148]

Do i need to buy a block to cover old lines on the block???

[@RobHoffmann20]

if you remove the lines like I had done, nothing will remain to block off.

[@david_bmx1148]

@@RobHoffmann20 Thanks

[@veggiepowered]

Iam Your Newest Subscriber Great Videos. I just got a 1999 astro van it is leaking oil really bad going to change the gaskets on the oil filter housing i am to do the DELETE hope it works

[@RobHoffmann20]

Best of luck!

[@bryanchavez6301]

Will this work on a 97 blazer

[@RobHoffmann20]

If the parts are assembled in the same manor it should be possible. I don't have any experience with the 97 model and can't say for certain. Best of luck, thanks for watching. Cheers

[@joshsavoie68]

anyone know if this works on an 02 zr2 s10?

[@RobHoffmann20]

If you were to pull off the oil filter and remove the cooler adapter you can find out pretty quickly. If you're going to check it out maybe wait till you're due for an oil change. Thanks for watching. Cheers

[@randallallen5620]

Was the adapter already on the car? Or will I have to buy an adapter?

[@RobHoffmann20]

In my case by removing the oil cooler it was not required to buy anything.

[@randallallen5620]

RobHoffmann20 Thanks for responding so quickly. Have you had any issues with the engine since? I guess it’s been about two years.

[@RobHoffmann20]

@@randallallen5620 No issues to date, in my case I did not need to have the cooler based on my driving conditions. Mostly flat here. No heavy towing, etc etc. So if your scenario is comparable you may be able to do the same.

[@randallallen5620]

RobHoffmann20 I’m in Michigan so it should work. Same engine too. Thanks a ton for the insight.

[@RobHoffmann20]

@@randallallen5620 Happy to be of help. Best of luck! Cheers

[@secondtimeround]

My Jimmy is leaking oil from around that fitting, while the engine is simple that whole area looks like a total pain in the ass to get to. ughh debating if I should delete it. Last thing I want is to lose all oil pressure and destroy the engine.

[@RobHoffmann20]

Michael Brown clean it out with a power washer and a degreaser it will make the work much easier when its clean

[@secondtimeround]

Yeah I have the 4wd model so I think deleting that stuff would be tricky for me beacuse my filter is all the way up front under the rad. But after watching your video I'm almost certain my leak is from the adapter area. Went on ebay and ordered an O Ring Kit. My whole engine bay could use a pressure washing. there were rat nests in it and 20 year old funk when I bought it. Bringing her back to life part by part.

[@RobHoffmann20]

Michael Brown 4x4 is definitely a different game! Glad to hear your working on bringing it back to life!

[@Mike_The_Hog_A_Nator]

i checked at my local mech. shop & to replace both front & rear cooler lines were $400. i'm a just delete mine. no need for it, imo for just a daily driver. Mine is a 02' Blazer ZR2

[@RobHoffmann20]

Mike Hog A Nator I have had no issues since the delete.

[@andywood2478]

What size wrenches

[@RobHoffmann20]

If I recall I think 10mm Allen head and T40 torx for the adapter. best of luck!

[@andywood2478]

@@RobHoffmann20 thank you! Got the job done last night!

[@simplypony4108]

Egg-Sealant