5.3 liter oil leak. Many possibilities, many repairs are required.
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- Опубликовано: 11 окт 2024
- 2001 GMC with the 5.3 has multiple oil leaks. In this video I remove the starter to gain access to the crankcase position sensor to replace the "O" ring.
I have an 03 5.3 Yukon. My leak was at the oil cooler block off plate. I replaced the gasket on it two times and torqued to spec. Still leaked. Flat sanded the plate to make sure it was flat. I then replaced the gasket the third time with a home made gasket with rubberized gasket material. No more leak. I think the paper thin gasket that is stock is Teflon and useless. Yours obviously is up higher and I am sure I will be heading that way in he future. lol. Great info sir and keep up the great videos.
I appreciate the input.
You probably saved people hours of frustration with that little tip at 4:09. Plastic connectors look easy after they're off, but when you can't see well and have to awkwardly reach, it's a completely different game.
I know I have appreciated the small details on other videos. I don't show other details assuming people know how to remove a wheel for example. But we much also balance the length of a video too, so some details get left out. With that said, thank you for pointing that out. I like hearing feedback. I hope your doing well.
Thanks for bringing us along , the valve cover gasket leaking is the reason for many oil leaks. Unfortunately this gets misdiagnosed all the time and cost the owner big money. I can see a shop throwing a rear main seal at this .
And as we all know, that's a big job. I'll continue the path of least resistance to see if I can locate this leak. Thanks for spending some time here.
Hi Wyatt, so glad to see your still at it. Those oil leaks can be a nightmare sometimes.
I’ve got a leak of power steering fluid, been to 3 mechanics and replaced he power steering pump, high pressure hose and still leaking. I just can’t afford anymore mechanics right now, so I just keep a check on my fluid level till I can.
I hope your wife, dad and brother are all well including the kids. I hope you have a blessed weekend my friend!
I just picked up dad from modoc42's house. I will have him until Tuesday night. All is well on the hill (as we say), and hope you're doing okay too. Yes, this leak has been driving me crazy. I'll keep plugging away at it, but your right, if I had to pay for this kind of work I'd just have to live with it. Thanks for the comment, it's always a pleasure to stay in contact.
@@wyattoneable it’s always good to see a video and talk with you. Glad all is well on the hill. Have a blessed evening!
Thanks for taking us along the journey tracking down the oil leaks. Good luck on the valve cover gaskets replacements
As you know, some oil leaks can be hard to nail down. This wasn't the fix but I'll keep at it. Thanks for the comment Lloyd.
Great video Wyatt! Good technique too. Good old GM!
Who ever designed the area around the starter needs to go back to school. What a pain. Good to hear from you Mike.
@@wyattoneable Whoever designed my entire truck needs to go back to school, LOL! 😁
Thanks for posting sir
Tracing oil leaks can be frustrating.
My boss always throws them jobs at me😢
You must be good at finding leaks...I'll be right over. :)
@@wyattoneable 😂😂
Funny you mentioned Nashville
My wife found a Pentecostal church online in Nashville that she likes. She wants to visit that church someday. Perhaps I will retire over yonder someday. California politics is for the birds.
@@theadventuresofjavier8698 I miss Ventura where I grew up but yes, between the cost, the crowds and the politics I can never go back. I live 1 hour 45 minutes East of the Nashville airport. It's beautiful country here with low property tax and no income tax. There is good and bad no matter where you go but I sure love it here!
"Crank shaft position sensor" say that 10 times in a row. LOL. Great video - thank you.
That seal was replaced as well. It ended up being the rear main seal.
@@wyattoneable Oh wow, so it was the rear main. We gotta do some investigating on my son's 2006 Silverado - oil is everywhere. LOL. Thanks for the follow up.
If someone can fix this, then you David! All the best my friend!
I keep trying! I sure appreciate that I have a friends from the old country. We try to come back next February for Doris' brother's 70th Geburgstag, when the weather is nice. (ha ha)
@wyattoneable wow it would be great do meet Doris again! Ok, both of you 😉
Good morning Wyatt. I've got some oil dripping on my 5.3 also. I need to get under there and see where it's coming from.
It can leak from so many places. I hope to narrow down my leak soon. Thanks Wally!
Oil leaks can be a bear sometimes to locate. I’m sure you’re fine the other leak. Stay safe and have a great day!
Hi Terry, glad to see you here. The Yukon is in a local repair shop for an oil pan gasket. Between taking care of my dad 3 days a week and other priorities, I gave up on the idea of doing it myself. I hope your well.
Well at least the crank sensor o-ring was responsible for a majority of the leakage there. Gotta love multiple leaks! Never fails!
I didn't even know that's where they put the crank sensors these days. Last one I worked on was a '96 - still the tried and true 5.7 / 350, with the sensor up front, behind the crank pulley. I don't remember seeing a sensor there when I pulled my starter in my '07 5.3 to do the transmission - I'll have to look back at the footage. GM loves to constantly change things!
My first day at my new job begins on Monday. Back to the real world of corporate life and commuting, lol. Wish me luck! :) I'll still tinker around in the shop on small stuff here and there. I'll never not have grease under my nails, so long as I'm able.
Well in that case, good luck in the new job! I hope you find it rewarding and beneficial to your life style. Yeah, I miss the 5.7. I understood it much more than the 5.3. As you know it's getting harder to keep up, especially with all the computer stuff. But we keep plugging away so we can justify all our tools and shop space. At least that's what I keep telling myself.
@@wyattoneable Amen to that, Wyatt. Thank you! It was time for a change for me. Thought I could get a handle on the electrical issues & engineering head-scratchers these newer ones throw at us, but I’ve found my happy place is with the old carbureted stuff. I’ll save the deep dive stress for my ‘07 Silverado.
I’m out here now putting summer tires on the truck. Been a great winter as far as MA goes. No snow to speak of, and very mild temps, outside of the 2 day arctic blast we had a couple weeks back. Figure the summer tires are cheaper to replace when worn, & I can always toss the winters back on if a March or April blizzard pops up. 👍
Cool. Some oil leaks are hard to find because the oil blows every where when driving . I am sure you will figure it out .
So true. I thought I caught it in the act a while ago, but I guess not. I'll keep trying to narrow it down. Thank you for the support.
Great tutorial Wyatt! Hope you figure out the cause. That's a lot of oil over time.
Thanks for spending some time here, I appreciate that. Yes, I need to get back on it to see what I can figure out.
Years ago I had a friend who was burning so much oil he would as us for our used oil after an oil change! LOL Things were tight when we were young and now they are getting tight again! =D Great stuff!
This was kind of a boring video, one I almost didn't post. But I'm glad I did because I get to hear from other channels and friends I've made over the years here on RUclips. When Roadking posted his video on the flea market I had a feeling he'd find you there. I made a comment on that video and he said he always enjoys talking to you because as I find out, you're a pretty funny guy! (ha ha)
Good to see you doing a bit of wrench'n again bro, ya looking well so life must be good. Safe travels
We all have our aches and pains but I'm still able to rise in the morning and greet the day ahead. As always, it's good to see your comment Ken.
Thanks for taking use along on trying to fix the oil leak. Leaks can be very difficult to find especially when you can't see where it's coming from. Did you check the oil pressure switch? It's on the driver side but the oil could be running down around the case of the trans.
Howdie Jim. I did check the oil pressure switch and it's dry. I will get this GMC back on the lift soon and keep plugging away at it. Thanks for the visit!
I hate working on cars.. but I like learning
The older I get the more I cam agree with you. Even with a lift this isn't as fun as it use to be. Nice to see you here!
@@wyattoneable Same here, buddy. Same here!!
Good to see you again I know you will track down the problem!! Stay safe!!
I'll get back to this soon. I will video more work so we can all learn what it took to fix this leak.
Not sure if you fixed it yet. But I have been watching videos to try and find where my leak on my 04 Escalade 6.0 245,000 miles is coming from. Drips about a quart a week. I used dye and checked the bell housing inspection cover and didn't see anything in there. But it was dyed on both sides of the motor. Dripping off the starter bolts, bell housing bolts and oil filter. So 2 weeks ago I did the valve cover gaskets and didn't notice any improvement. The old gaskets looked like they have been replaced (we bought the truck a year ago). Last weekend I pulled the intake off and the 2 bolts in the rear of the valley pan were barley finger tight. Pulled the valley pan off and the gasket was flat as a pancake with oil all over the mating surfaces, I was assuming oil is passing if the mating surfaces were soaked with oil and the cylinder heads are coated in wet crusty oil. I only have about 20 miles on it so far but the leak has slowed down (I don't want to say it stopped just yet). I am hoping it is just residual oil that is leaking. The whole underside of the truck undercoated in 5w30 ( and glows in black light due to the oil dye). Good luck with yours. Thanks for the video!!
I haven't fixed my leak yet. The oil pan gasket helped but it looks like it's going to be the rear main seal on my truck.
Heya Wyatt! Good to see ya tinkering on the ol cheby. Hope dad and the misses is doing well. Get a dye kit if the leak isnt obvious. Make sure it comes with the dye, special lense or glasses, and the light to illuminate the leak. Got mine on scamazon. I think your on the right track though with the valve cover gasket area. Hopefully though its not the intake manifold. Have a great rest of your day, and take care.
You're the second subscriber to say that there is a dye kit. Funny that I never heard of this before. That's why I enjoy interaction with my RUclips friends, I always learn something! We are doing well Dad is getting weaker, but has has no pain so that's a blessing.
@@wyattoneable The dye kit has been out for a looong time. They also have it for antifreeze. Hope this helps you find your leak. Glad to hear everybody is ok and doing well.
Hey Wyatt. I hate leaks of any kind. I was out in my shop working on my Buick and notices oil coming out from under my Fargo. It has been parked since September and I really didn't pay any attention to it till now. I don't know where it is from, except it is transmission flued. Just more to fix later.
Leaks bug me for sure and I'll keep plugging away to find this one. Thanks for the view.
Thanks for the video and nice set up in your garage!
I appreciate ya!
Hi Wyatt great video my friend.
Hi Bill, always nice to see a comment from you!
Great job showing the O ring replacement..!! 👊... Couldn't help but notice the copper colored Vet what year is it? Pappyson just purchased a Blue 2005 (thinking a C6). He loves it.!! ... and it's a beauty... Thumbs up Wyatt. 👍
My Corvette is an 2004, and yes, that's the "C6". I love this color (Daytona sunset) because it reminds me of an older Corvette I had in the 70's. I've always had a Corvette (off and on) as they are pretty much bullet proof and fun to drive. But yeah, narrowing down this oil leak has been a pain. I'll keep at it.
Another great do it yourself video wyatt. Im sure it will help someone else out. I always look forward to learning from them. :)
Your avatar is working again, that's good. I sure appreciate your support neighbor!
@@wyattoneable Yes it is! 🙂
Nice video . / rear main ? please let us know when ya find it !
Gosh I hope not, but if I replace the valve cover gaskets and it still leaks then we're all in for a long video entitled "Watch Wyatt have a melt down".
@@wyattoneable HAHAHA! Well I hope it's easy.
You think its a tough job Wyatt.?..Try it with a steering shaft in the way.!! lol...Out comes the trans my friend an time to replace that rear seal plate...Fun fun fun...
Oh yeah, and this has a transfer case so lucky me (if I have to replace the real main seal). I'm hoping I can find a leak that won't be so much work to fix.
I always enjoy your vids...keep up the good work!
How's your dad doing?
Thanks for asking about dad. He's gotten weaker but is in no pain so that's a blessing.
Hello sir…I appreciate your video on this particular problem! I have the exact problem that you are explaining. I have been going back and forth to try and figure out this oil leak on my 08 5.3 Sierra…I was about to replace that crankshaft position sensor to stop the leak but now leaning towards the valve cover gasket. It’s so tight trying to see anything around the motor. Did the valve cover gasket fix your problem?
Thank you for the comment. I never replaced the valve cover gasket. As I continued to work this issue I found out the major leak was from the rear main seal. I replaced that without making a video as there are many videos out there on how to do that job. Good luck!
They don’t make it easy sometimes 😏 thanks for sharing makes me feel better
Thanks Joe. I appreciate ya!
Got the same engine. Almost 300k miles and runs great. The only issue OIL LEAK!
These have many places that can leak. I replaced all the easy stuff first, then had the oil pan gasket replaced but the real leak was in fact the rear main seal. I didn't film that because it's been done many times but the Yukon is finally dry! Best of luck with your project.
@@wyattoneable Thanks! It doesn’t sound like an easy fix. I’m actually bringing my yukon to the mechanic today. I will give them all the tips you mentioned. I hope to get another year out of this amazing car. It took us all over US for the last 20 years!
Love ur shop wyat always watching
Me too brother! Thank you for stopping by.
You should do the camshaft sensor o ring at the same time, it can leak down the inside of the bell housing
Camshaft sensor is behind water pump... Crankshaft sensor above starter...
I haven't seen either leak... And almost impossible to get out and replace... Expect to break it into pieces.. and have a heart attack.
A lot of work to get to an oring. Enough to ruin your day.
Hope not, but Is there a metal shield that sits behind the flexplate that's preventing oil to come to the inspection side of bellhousing?
That's worth further investigation but from what I can see and what's out there on RUclips, the rear main seal doesn't look to be the suspect. But I'll keep looking. Good to hear from you Dave.
Good vid brother gonna need to see you do some burn outs! 🏁💪
Oh boy wouldn't that be something. :)
@@wyattoneable that’s what I’m saying wyat show this lil wiper snappers some American muscle! 💪🌟
The oil pan gasket is very common leak spot on these as well.
You're correct about that but so far no leaks on mine. I'll keep an eye on it!
sometimes those leaks are hard to find. The oil pressure sender behind the intake is another common leak area.It will be mistaken for a rear main seal if you don't follow the trail.
I inspected that area and so far it's dry but thanks for the suggestion.
hey wyatt hope all is well the oil pan is super common to leak ive done a bunch
Good to know, thanks!
Do you think diagnostic time is less than multiple repairs?
Probably but I know these areas are known leak points so I decided to repair all the areas. I still have the rear main seal to do. It's leaking as well.
Clean the mess 1st and then use some UV dye to trace the leak. It will tell you where it's coming from right away.
I just bought a 2012 and I’m praying I didn’t get burned. It was clean when I bought it, but got home and there was a small oil drip off the starter side and off of the oil cooler side. I’m going to clean my way down with brake cleaner tonight and start the eliminating process. I’m hoping it’s not the rear main seal 😢
I hope it's not either. Mine needs the rear main seal and I'm on a list to have it done someday. The shop in my area is backed up with other work.
Does the inspection cover pop out or is it threaded in there
The small round inspection cover just pops off.
Hmm. I would pour baby powder around the vavle gasket. Else, somebody already suggested the oil dye kit from advance😎Wonder where the nasty leak is.
Yes, I have had a few comments about using a dye kit. I knew dye kits were available for coolant but did not know about the use to find an oil leak. I'll be looking into that. Thanks!
is it ok to use motor flush on engines
i used the oil dye to find a 5.3 leak was rear main . advance had an affordable kit under 25$.
An oil dye? I'll look into that, thanks.
Did you ever find and fix the actual leak?
Many months later I finally got motivated to change the rear main seal. It was a lot of work and there are many videos on ho to do this job so I didn't film it. That was a fix.
@wyattoneable so it was the rear main seal even though it all appeared clean through the inspection hole? I have the same issue on the same year vehicle and I can't find it. Crazy because it leaks about 1 qt every 100 miles. Seems like that would be easy to find.
@@brentford9066 Yep, that was it. And your right. With that much oil leaking you'd think it would be easy to find.
So tight in there !! I’m guessing all the swearing has been edited out of the video 😆 always disappointing when so much work didn’t fix the problem 😖 You should buy a Jeep… ohhh wait 😳😂😂
(ha ha) I do miss the Jeep a little but so far the Yukon has been pretty good. I'm enjoying the extra room and power. I'll figure this out one day. Glad you're back from your travels and hopefully your planning the next one soon. I'm working on a new spot for camping real close to home. It will have a great view and Doris will cook for us!
The view doesn’t matter if Doris is cooking 😃😃😃
@@SuperwheelieOverland That's funny. I told her I wanted to invite you back again and she said "Just let me know when so I can plan a meal".
Were u able to fix it?
The oil pan gasket was also leaking so I had that replaced as well. But I still have a leak coming from the rear main seal. Lots of leaks on this one. Thank you for following up.
😎👍
Its ridiculous that you cant buy the correct o ring without having to buy the sensor.
It's crazy right? I still need to go to the parts store to see if they might have a slightly larger ring, but I hate doing a job twice...but I hate oil leaks worse. Thank you for hanging around Ed.
First!
I'm not surprised. I know what time you get up in the mornings!
I hate dealing with oil leaks! I don’t envy that task Wyatt. I hope you find it and it’s an easy fix 🫣❤️
Bless you Niamh. You know the frustrations of an oil leak. I'm lucky to have a lift but it's getting harder and harder to work on these issues. I'm old, fat and my knees hurt. (ha ha)
@@wyattoneable I’d love a lift! 🤗 I’d love a garage 😂 Think of me this week when I’m out in the cold on the driveway changing inner and outer tie rods 🤦🏼♀️
@@TheCowgirlNiamh My heart goes out to you. I worked many years from a sheet of cardboard and in the rain or cold. That's never any fun so yes, I'll be thinking of you! I loved your clock video by the way. Two girls having a very good time. :)