▶️Losing Oil GM 3.6 How To FIX🔧
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- เผยแพร่เมื่อ 15 เม.ย. 2019
- ▶️Losing Oil GM 3.6 How To FIX🔧.This common problem is pretty much inevitable with GM 3.6L engines. When the PCV system has restriction, the system fails to evacuate the pressure in the engine crank case causing extreme pressure. This will eventually lead to blown out valve cover gaskets, leaking cam seals, rear main seal, front main seal and will eventually leak past your valve stem seals causing your engine to burn oil in the combustion chamber.
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@Nthefastlane hello is this problem the same in the 2011 Cadillac CTS Luxury?
Spell Breaker I would say it possibly is. The 2011 CTS uses the 3.6 LLT engines. The 2006 STS in this video uses the LY7 but they are very similar 3.6"s.
Looks good
I'm just now having this problem ( losing oil on my 2010 CTS ) will this also work on a 3.0 ? Thank You
I did this on a transverse mounted 2012 Impala 3.6. Thanks for the tip on the clip I would have never figured it out. To get to the PCV was a tight access. The PCV was in there pretty tight. I started by using a curved pry tool like a mini crowbar and tapped it minimally as a wedge using a hammer between the PCV and the plastic. This dislodged the PCV enough to insert a trim remover tool and with more minimal hammer tapping on the butt handle of the trim remover tool, lifted the PVC out. To reinsert, I used two socket extenders with a swivel on the part I placed over the nipple top of the PVC to tap it down into the seat.
wow, this is a better video with clear and concise instructions with clear camera views, than all the crap videos youtube puts in my search results. it just randomly came up on my suggestions today..thanks so much, any cadillac 3.6 videos are much apreciated.
Thank you Cody for those compliments. I really try! Glad you enjoyed it.👍
Great tip, I did this on my wife's 2008 SRX easy fix! After drilling out and cleaning no more oil add...(still check though very frequently)
It was nice to here a video done by someone who uses proper grammer and speaks clearly. Great video. I changed my spark plugs a few months ago and saw oil and was clueless as to where it could have come from. I an going to do this to mine and start keeping a closer eye on my oil level.
This guy knows his stuff.. very useful information I never knew this problem... Thanks
DRILL BITS: Use 7/64 on top and 5/64 for the two bottom holes. Clean out with brake cleaner - thanks for the tips!
Thanks man. This is the best vid ive seen on this subject. real clear and easy to understand. Fromm New Zealand.
Very clear and informative. Thanks.
I did this on my gmh (holden ,Australian car)
3.6 works a treat and no more issues with timing chains (after I put new ones in)
Smooth driving,, happy day. 😊👍🏼
Very easy instructions, thank you!
Nice job on the video. I'll be watching more often. 👍
Video was so informative I had to share with Facebook
I liked it so I'll give you a big ole thumbs up 👍, I'm going to do this to my 07 SRX It's got the 3.6L engine to, Thanks for the heads up on this problem!!!
Great video! Thanks!
Great informative videos man. Keep it up
Thanks Hendrik!
im in australia and we have this engine is in the commodore and now that iv seen it done im happy to do it to both my my cars as one is burning oil and intake is oily
Appreciate the video, just did mine and it seems to run smoother already. Oil consumption still not sure will know in a few weeks.
Mane this was a great video, it’s hard to find videos on repairs on the STS and this right here may help me. As I’m definitely having this exact issue with mines as of today. Recently changed my oil and filter, 3 days later I heard a slight knock and a little bit of white smoke out my exhaust …fast forward, it breaks down after 10m of driving and I seen oil actually coming from my intake manifold/Throttle body and my seals once all removed! Never seen before but overall PCV Was my first thought but not 100% because I never had to deal with one lol I’ll see you tomorrow PCV …oh yea metal shavings somewhat only coming from driver side intake location) I should be scared 😱 thanks mane great detail on this
Good information!!!! Thanks
Im doing the holes on the pcv valve today. I got leak on 2 spark plugs, losing compression. Good video Thanks.
Thanks ! Our 2012 Equinox with 3.0L V6 has been leaking oil somewhere at the front of the engine. Checked the PCV and found it almost plugged shut. And the PCV holes where still small like you showed on the 3.6L. Drilled and cleaned out like you showed. We'll see if this helps. Sure makes sense to me. Fact there was a TSB is reassuring.
Stupendously helpful video. Truly excellent.
Thanks TJ! Glad you enjoyed it.
great video.
Great video
Great tip Thanks
Thanks so much
Thanks you are super clear--thanks.
Very helpful video as my 05 cady has this same issue. Thanks
Thank you Mike! Anytime.
Nice job 👏
I wish I would of seen this back in May. I could of saved me $1,700. Definitely informative
Thanks James!
They ask money they do something Lse that don't need and ask you alot money they like that becsreful ask more questions to other people o take it to auto zone ask them to check your computer free
I hope my cylinders are ok I change pcv valve a damage coil plus spark plugs clean the trotle the engine don't loose power I hope no more inside the trotle or the intake
Good job. Gotta check my 2013 Traverse tomorrow.
Same with my 2011 enclave. Its really bad on oil.
👍 good stuff, thanks
Thank you you save save me lots of money and oil it was very clear and very well done video
Thanks mate, I just bought an 07 commodore ute which has the same engine. Mine was completely blocked. I have re drilled the holes like you showed. I have now looked inside the oil cap and my engine looks pretty gunked up.....like thick grease. I've rang my mechanic and he said its best not to disturb it. I'll need to take the rocker covers off and try and carefull
Hey mate, I had a 07 RA Rodeo with same 3.6L engine and had same problem with the oil sludge, you need to use a full synthetic oil and change it every 7500ks or earlier, not what the book says. I used Nulon 5w30 full synthetic. If you let the oil sludge up it leads to all sorts of problems with the oil pressure and in turn the fine oil passages throughout the engine block up and then it goodbye engine because various parts are not getting enough lubrication.
thanks, i have no probs with my 05 cts , i change the oil every 3k , i will drill out the pcv , the timing chain replace on this engine is a real son of a gun , your information is very helpful ....
timing chain replacement means it was being run low on oil
Thanks for that that's what my CTS was now I need to drill out my hole thanks again this Is marcus
Wassup! Man I godda show this to the mechanic that's working on my 2011 Cadillac CTS it's at a hyundai dealership I paid 🤦alot to get fix! When I found out it was losing oil now it back over there after 3weeks leaking again.
Great tip, stumbled upon your video, it's like it knew I have this problem lol. Am going to do this now. Plus I subscribed!!
It happens like that! Thanks Kevin.👍
So did it end up helping your oil consumption issues?
@@theraf8100 actually it created a different problem, smoke at cold start up, was pulling to much vacuum. So I ended up buying a new piece from gm it was like 30$ installed it and zero oil consumption after that
@@kevinmonseler3592 Was the new piece a new PCV Valve? Thanks for the reply btw!
@@theraf8100 yes it was, I found that drilling it bigger made way too much vacuum and my car started smoking at cold starts, so I went to gm and purchased a new pcv valve( which is hollow lol) and oil consumption resolved. And you are welcome for answering.
Thanks Bro
Good stuff
well done
Great video I got a 2011 cts I notices there was big blob of slimy oil in the air intake hose when I was changing my air filter, the oil built up in the hose directly below the pcv vacuum line connected to the top of hose just before it clamps to the intake manifold which also had this grime which was getting sucked into the intake. That pcv line was connected to that same connector on the passenger side. I was glad I caught this when the car had about 60,000miles(about 95,000km). I found the same information you layout and bought a new valve piece and drilled it out and also added a catch can. i got one that has a brass filter and is easy to drain but it came with cheap tubing lines which couldnt handle high temps and ended up kinking and blocking airflow which almost caused the the engine to stall when i was out on a drive. I went to a local hose and tubing supplier and really didnt know what class or grade I needed that could handle the pressure and temperature. The owner came out and asked me to show him and I showed him my kinking lines and explained that I needed something to handle the temps and pressure. Now this was a place that sold and supplied all kinds of hoses and tubes by the spool but the owner just pulled off one of the lines that was kinked and checked the size of the hose, then said ok how long of piece do you need. I said 10ft just so I had some extra just incase. 5 mins later he came out with a nice thick hose and hands it to me, I ask him what the cost is and he said 10 bucks which was perfect cause I only has $10 bill in my wallet. I dont know what the hose I got was made of but it hasnt kinked in years and I still have about 4 feet of it in my tool box. But ya I would say get a catch can if you do this mod. Mine gets about half full of oil every oil change and thats all oil which would be getting in your air intake
I didn't know this i will try it .
There is another guy who explains well too so you added to his vid--thanks.
My 18 yo son bought an 06 CTS 2.8 with 80k miles a month ago--grandpa car--figured it was well cared for. Started hearing a rattle noise from the front of the engine when going up our steep driveway. Checked oil and it was not even on the stick--so that was the timing chain being starved when at an angle. I immediately changed the oil and put in 6 qts of AMSOIL. Researched these CTS's and heard about oil consumption issues. One week later (about 300 miles) and we're a quart low already. Plan to inspect the pcv (and probably valve cover design next). Hoping this will fix it.
I added a catch-can to my 1989 chevy 5.0 with PCV after catch-can so then I found your video and did this with 2006 CTS 3.6 hopefully to release some of those crankcase pressures. Was thinking maybe the intake cumbustion camber would be next to think about cleaning with those added crankcase vapor to it, what do you see in the future?
Interesting vid...my son's '07 Buick Lacrosse has the 3.6L VVT and burns about a quart of oil every 2500 miles...I just replaced the PCV valve and made this mod, will be interesting to see if it has any effect...
I have the same problem on my '15 Colorado with the LFX 3.6. Will this help out and install catch can too?
Unbelieveable how a manufacturer could make something like this and not be sued.
Why would they get sued? It is an engineering flaw, as soon as warranty expires, the business cannot be held responsible
@@justsomeguy2918 it’s an engineering flaw is exactly why they would be sued. Not sure how much more evidence you would need
Was there a recall for this defect in design??
Fr u gotta add a qt every 1000 miles
Unbelievable this garbage 3.6 vvt with multiple cough cough I mean dozens of problems is what replaced the legendary bulletproof 3800. Gm wasn't making any money and the engines were out living the owners and there family members so they had to make an engine that would fail. RIP 3800
Thanks so much I have a 2009 Cadillac CTS 3.6 and i will be doing this I am burning oil as well found in my spark plue #2. was on your shop this video wanted to buy a oi; catch can but didnt see what one I needed. How do I remove the oil for where my spark pluge is...Thanks again
Thanks for the video. I just purchased a 2008 SRX 3.6L today and will change the oil and air filter. Then I will check out the PVC Valve. Does anyone cell a PCV valve that has the right size holes or do you have to alter the original? Please let me know if there is anything else on the these vehicles I need to pay attention to. Thanks for making this video!!
I have a 2009 Cadillac CTS AWD does mine also need the pcv holes bigger as you mentioned in this video
Is the pcv valve not interchangeable from the parts store and a upgrade from gm ?
You recommend a Catch can oil. Built. Is that will low the engine oil levels?
Bought the catch can , have you done a video on installing on the 3.6?
Hi there , is this problem with all GM cars for example Hummer H3 3.5 or 3.7 litres engines
as well ?
Thank you .
Does this apply to a 2016 impala with the 3.6? Would getting a catch Can help??
I did this a week ago. Bought a new pcv on rockauto and drilled it out and installed it. Took 2 minutes.had to replace the oil pressure sensor as well and that was a major pain in the a$$ but got it done. Thinking about the an oil catch can next. Want my 2009 SRX4 to last as long as possibl
GM also silently updated the valve cover gasket to block a lot more under the pcv valve.
Thank you EVER so much!!!
Does the 2011cts 3.0 take the same procedure??
My 2011 Cadillac CTS performance has a different PCV valve it's plastic and had a 45° bend can you use this PCV valve on my 2011 CTS?
Will this kit work on 2013 impala? 3.6l v6?
My 2007 Cadillac CTS w/3.6 and 110,000 miles eats up oil big time. I wish I knew this when I bought it with 62,000. I have to constantly add oil.
how's it now?
I traded it in for a Camry. Got tired of repairs.
@@dougmatteo7359 good stuff i took out a 3.6 v6 cts wagon 2010 and lorddd it chugs oil
3.0l does this too
100k let’s gooooooooooo
Thanks! I've got a 2005 sts with 140000 and I've started to go thru a quarter every 1000 miles or so. Hoping these help.
Hey Tyson, wondering if this worked for you?
Do You have whisteling sound after that mod?
Hello , is this true for Acadia GM as well ?
I'd argue that all of the hfv6 line should have catch cans. The lf4 should have a dry sump much like they've done with the c8 vetts
Any videos how to locate and change pcv vavle
Should It flow air bidirectional? I can actually see through it after cleaning it.
Just brought a Holden vz with the 3.6l in it and after finding out about this I pulled my pcv valve out and it was completely blocked not a wisper of air could get through. The cars has 262 000km on it too. So shes gonna be sludged up 😭
Same thing for Cadillac SRX 04?
Is a GM 3.6 v6 in a Suzuki XL 7 going to be the same mine runs through about 2 quarts a month
My 2006 Cadillac STS it just leeks from where the knobs at how can I fix that sir
Good job, bro.
Thanks Allen.👊
Oil in intake tube ended after doing this to it, but still uses some oil still. Throttle plate stays clean as a whistle too. Hope this reduces intake valve deposits also from less oil in intake tube. 👍✌️
So I rebuilt the top half of my 3.6. And installed new valve cover gaskets and noticed on the right bank valve cover gasket it’s sealed off with 3 little holes so that it protects oil from splashing up onto the pcv valve, my question is could this be even more of a problem? Right now I’m burning a quart every 150 miles which is crazy and it’s definitely going out the exhaust, do you have any ideas for this? I appreciate any info I can get
GM has a revised valve cover gasket, with a built in oil baffle for the PCV passageway. I would still drill out the pcv valve like you did.
I drilled my pcv out, cleaned carbon out of intake, throttle body, tube from valve cover to intake...I reset my mileage trip odometer and I went from 21.5 mpg to 24.7mpg. This was just the first 25 miles, so will have a better idea in 1000 miles. Engine is definitely running smoother. Thanks for the info. I was consuming 1 quart every 500-750 miles. Hopefully this eleviates this issue, 221,000 miles 2007 Cadillac CTS 3.6L
M F how has it been? I have a 05 cts 3.6l that uses a lot of oil too.
Joshua Torrez
My 07 is still using/ leaking oil. It stopped leaking oil at the breather tube on driverside valve cover that goes to the intake though... So I think I am going to just keep adding oil every week like I have been. I don't feel like installing a catch can. My mileage went down a little by the way, now getting around 23.0 mpg. But I think I have a coil misfiring intermittently. So I am sure that is killing the mpg a little. Good luck Josh.
What is the tube coming from left aft side of the engine and connects to the intake tube near MAF sensor? I have cold air intake and oil near MAF sensor
Unless I am not understanding your question that line is a recycle tube and it is normal to have oil in a factory air box or in yours right next to the MAF sensor. Now I say normal but if you are getting a lot of oil then no and you should check your PCV valve to see if you need to replace it. I have a 2011 CTS4 3.6l and I will be drilling the holes in the PCV valve tomorrow
2013 buick laccrosse 3.6 v6 is it the same way
I have a 2015 Cadillac SRX with the 3.6L engine that burns about a quart of oil every 5k miles. Not as bad as some have reported with the older models which supposedly was fixed in '14 but still unacceptable to me. Any other ideas of what could be the culprit?
you should post a video on how to install a catch can on this particular engine. Because of the multiple lines going into the intake manifold, it seems harder to me than most engines are.
I saw a 3 0l in a Cadillac which had a new designed valve cover gasket to help minimize excessive oil in the pcv system
I’ve e replaced that Valve and drilled out the valve. I want to do take off the hose it attaches to but can’t figure out how to get the other end of the hose off , I don’t want to force it. What’s the trick?
I have a 2006 Cadillac SRX with the 3.6. Been having to add oil every week and a half or two weeks now for a long time! Couldn’t find a leak anywhere, so this is definitely something to check out and see if it fixes my problem. Great video and thanks for the content. If you can help me figure out why I’m having problems with it cranking, (battery is good, alternator is good and the starter also) I would love the feedback. Thanks again!
Did this help?
How'd it go? I have a 06 srx v6 same problem. Tryna find a fix or something to help with oil consumption.
My 2009 camry le v4 is burning too much oil like emptying every 500 miles. The car is running smooth and give good mpg if i top up the oil every 300 - 500 miles. Will replacing pcv valve fix this issue ?
Thank you for the video, I have a 2011 CTS4 3.6l 31,000 miles and I will be drilling the PCV valve tomorrow, I also will be installing a catch can soon. I use Mobile One, is there a better oil you recommend for this engine?
Castrol.
@@southerncross3638 What are the advantages of Castrol?
My 04,3.6 srx leaks oil at the throttle body, the mecanic told me about change the pcv valve, the said that pcv comes complete with the valve cover,sorry for My English it's so basic
What if I install oil catch can without holing the valve
My 2006 lacrosse 3.6 was pushing oil and after drilling the pcv valve 2 months later my motor was dry. Thanks so much.
Wait, like there was no oil in the engine?
No it fixed my leaks
Will this help with the timing issue that the 3.6vvt had in the 2012 area
Nope
Where is the pcv on the 2003 cts.
Wow, I am having this issue with my gm 3.9L in a 2010 Lucerne. Replaced the crank seal twice in the past year and it is still leaking oil. Would this be the same in a 3.9 L? Help
Does this also happen with the 3.2/2.8L cts? Does the crankcase have more or less pressure the larger/smaller the engine? Would I need to adjust the size of the hole drilled out?
2.8 cts I own yes same valve did mod on weekend ,one of my holes was plugged drilled all three as in video cleaned hose with carb cleaner
Is there a link to one already predrilled?
Hey why did you only do the passenger side? Also im guessing id have to put 2 catch cans since theirs a drivers and passenger PCV valves? What do you recommend? Thanks!
If this is necessary whats with the updated right side valve cover part# 12641261 that covers over the pcv chamber except for 3 small holes on 3.6 gm's ? seems this would have the opposite effect
It's actually called a ccv(crankcase ventilation valve) on these engines, as it is not a pcv in the traditional sense since there is no ball valve inside of them...that being said; it's all about finding the happy medium w/ these ccv systems...GM found out that the older gasket designs were allowing TOO much oil to be sucked up into the valve at high engine vacuum and because the holes were too small it would cause them to get clogged up which in turn created too much pressure in the crankcase & then it's only a matter of time until it starts developing all of the associated symptoms w/ that...the new gasket design prevents too much oil from the crankcase from being sucked into the ccv system. Add drilling the holes out larger on the ccv on top of that & it will never get clogged, it won't suck in too much oil & you will have a pretty darn reliable hfv6 that should give you many more trouble-free miles! If u have a gdi version, though, I would still recommend running a spray intake cleaner w/ PEA through it every 25,000 miles to clean up the carbon build-up off of the intake valves & pistons that accumulates on those...
Dude...I've been looking for 2 weeks trying to find a video that showed how to do this from pulling it out of the engine to putting it back in. THANK YOU! Do you also have a video showing how to install the PCV Vent Hoses for the same Car/Engine? These are the hoses that connect to the pcv valvee and up to the sides of the intake manifold ( AC Delco PN 12616910 ) and a separate hose that runs somewhere from the back of the engine to the front of the engine. ( AC Delco PN 12603990 ) I don't see a line that looks like it on my car so I don't know where it exactly.
You're welcome. Check out my Cadillac Repair Playlist. Check out the CTS burning oil video. Here is my playlist: th-cam.com/play/PLmjO7iDRmzmRto5If0kwE6p88v2bEMHmr.html