Transmission slipping? how to beef up your GM 6l80E!
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- เผยแพร่เมื่อ 7 ม.ค. 2021
- When I bought my 2010 Silverado, we knew the trans was slipping before I even test drove it, but it was only slipping in low gears, once it was in overdrive it was ok. So I drove it home from Iron Mountain Michigan and brought it to Travis work to get rebuilt and beefed up. Zero issues after doing this! When its cold it does have to rev up a little bit to get into 3rd, but this is normal, only does it once.
Heavy duty torque converter
Heavy duty clutch disks
Heavy duty apply piston
Cleaned up and reused everything else, pump was in good shape.
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#6L80E rebuild
#6L80E slipping
#GM 6L80E TRANSMISSION - ยานยนต์และพาหนะ
Man I am so grateful for this video that was a lot of great information I've probably watched a dozen videos from professional shops but I think you broke it down into layman's terms better than anybody appreciate this video bro
My Yukon had this problem for a while and changing that torque converter helped a lot nice video!
Mine 6l80 has always done that odd 2-3 shift until warmed up.
Always nice to have a transmission buddy
I got a 2016 with a 6L80 and it has done that rev hard shift between 2-3 since day one.
The beer can was funny as hell!
Haha I'm glad you cought that!
Yeah, I thought that was great too!
Loox tops mate wow, a good clean fix100k left in it
Bud Light Can was funny coming out...
Getting mine rebuilt as I post here. It's about $4500 by a reputable local transmission shop. Super easy to rebuild, however, I have no garage and the winter is here. Would love to tear into the next one. 323,000KM on the first transmission for my Sierra. Aiming for another 323,000 More !
One rebuild and you should be good for another 200,000 miles! (Not sure what that is in KM) But my friend said they are more simple than a 4l80. I still love it.
pop can in trans is great lol
That was an awesome video. My 2010 sierra 1500 5.3 with 6l80 went at 135k. Had an old school shop put a jasper in per there recommendation since I planned on keeping the truck. Is it true jaspers are better or heavier duty than the factory trans? Thanks. Again great video. 👍
No, they are just all stock, actually not great besides the warranty.
I wonder why you don’t have to soak the clutch plates in a car transmission as you do when installing motorcycles plates?
I wonder if anyone has made a kit to make a 8L90 or 10L90 work on a 4.8/5.3/6.0/6.2 in a gmt800 truck
Unknown to me till now there is a much better way to HP tuner these transmissions. Stock trans tune leaves the stall always slipping during lock up.
Sick intro.
Thanks man!
What's the part number for the bud light can. Heard that helps cool the oil and shifts a little firmer
#12. The oil pressure smashed the can so we upgraded to a #30.
This rebuild will fix the slipping???
Mines does the same thing but shifts good
Shift flares are pretty common, but can be tuned out with hp tuners. I wanted to ask, was there a "kit" you bought for the parts and if so where from?
No just ordered everything separately through my friends shop, he does these all the time so he knew what I would need.
Did you update the tune at all? The shift flares are a common issue I hear about but I'm told you can tune it out.
No stock tune.
Didn't see what if you beefed up the valve body, A line / pump pressure kits?
I believe you can up the line pressure with a tune. I didn't re-tune anything.
Please tell me you didn't reuse the frictions and seals. Please tell me you replaced the bushings too. Please tell me you at least pre-soaked the frictions.
Yea. Installing those friction and steels dry. I didn't see where they addressed pump pressure, which is what destroyed those pistons.
Hey hey some wisco boys!
I've got a clunk when downshift from 2 to 1
Also slipping at low speed and rpm wavering
Even put on engine grade braking when coming to a stop sign on the highway
check the transmission mount if there is a clunk
For rpm fluctuation it’s probably the torque converter. If your up close to or above 100k the heat kills the converter
Hi,what can I do about bmw e39 530d automatic gearbox (5L40),°any option for 6L80 😁
No clue honestly haha. Do some research maybe it's been done before.
What could be the cause of when I go to take off from a stop it won’t go just revs for a second then jerks forward
I'd say torque converter is bad.
Where did you buy the rebuild kid ? Looking for something good to rebuild mine
I just had the shop order parts, could check precision, I can find out.
You guys throw those 1234 steels away? You don’t polish and reuse them?
I'm not sure if they do or not, if they look fine they will reuse them, any burn Mark's I think they just get new ones.
Could you do a parts list so I can get the parts you put in the trans
NOPE.😂
@@dalehall2993dam no parts listed
how much torque and horsepower does a 4L80E use up from the engine before it gets to the ground going to the transfer case and differential
100-120 maybe?
I would really like to uograde mine, but i would need another video with more detail on the parts replaced and assembly, to not mess up everything...
I'm sure you can find other videos, maybe even a service book somewhere. If you bring it to a shop, will also need to bring your wallet so I can see why you would want to do it yourself.
@@Trikekid84 i wouldn't have a problem with a shop, but I live in Mexico and it's hard to find one that would go a good job, I have had several transmissions badly rebuilt. "instructions unclear, the truck is now on fire"
@@BadAssEngineering yikes!
What kit did you guys use ? I have the same issue almost exact. In my 2018 4x4 1500 z71
I can get back to you, I don't know much about it since my friend did the work but we just bought the parts that we needed, not sure if it was a kit or not. But I bet your apply piston is cracked.
After watching so many videos on here (bc I'm about to upgrade mine), the most common upgrade kits are by TransGo & Sonnax.
Thanks for the video - if you find out about the shift to 3rd whether it is bad - please post an update.
Alot of people I've talked too say that their trucks do it too and it's normal. If it always does it then I would say something might be wrong. It only does it on the first shift when it's cold.
The 6l80s tend to do that,even my 2021 silverado with a 10 speed does it on the first drive, why? Idk, my G8 did the same, but a tune got rid of the shift flare on it...
I work for gm and specialize in transmissions. My 6l80e does it also on 2-3 when cold. There is a tsb for it stating it has to purge out air from the 3-5-reverse clutch pack thats why only happens after hours of sitting. They say to place in reverse first to purge the clutch. That does not work for mine.
So it's like an air bubble that dosnt really matter I suppose haha.
I guess. Mine did not do it new. Started at about 40k miles. Im now at 111k and no issues. I wish there was a fix but mine is not that bad. I was going to try and fix it but our hands are tied when a tsb states normal.
What makes a transmission hold more power?
Better clutches and mostly that hd apply piston for sure.
Where did you get the parts from or website
Whoever has parts, the shop orders parts from all over based on price and shipping.
How much do you charge to rebuild a 6L80 transmission?
Around 3k but you will have to call a place and find out for sure.
Did you clear out the tcm memory or do you have to on a rebuild
Nope, left it alone.
@@Trikekid84 do you need any special tools like for the pump alignment or anything else besides the snap ring pliers
@@Lightningmicro I'm not sure, I'll get back to you.
@@Trikekid84 Gotta relearn on the 6l80
@@FirstLast-we8cb What happens if you dont? Works fine.
DID YOU INSTALL THE WAVY PLATE ON THE 2-4-6 CLUTCH PACK?
Yup, not sure if I showed it or not.
I mean 4-5-6 clutch.
Trying to figure mine out. With a programmer on it. Mine has a slip 1-2 shift. About once a month. If i let it shift under some power it does fine
Mine does that once when it's cold, like every day. It's normal I heard. Works 100% fine after the first 1/4 mile.
@@Trikekid84 yeah thats what I've got. Never misses a beat after I pull out of work. Happens maybe 80% of the time. Once it goes through all 6spd it seems fine after.
@@Trikekid84 mines been tuned as well and until warm it has a harsh delay between 1 and 2 and sometimes flares between 2 and 3. once north of 90-100 degrees it shifts way better
@@JMRxYM that sounds a little worse than mine but I think the flare from 2-3 when cold is pretty normal and isn't anything to worry about. If the tune bumps up the line pressure that could factor into it as well. This one was rebuilt but I don't have a tune or anything else special done to it. I'd like to get a billet stall converter next so that it'll last a long time, and bump the stall up a few hundred rpm for daily driving fun.
@@Trikekid84 I honestly think I need the tranny re tuned for less aggressive partial throttle shifts. If I’m grannie-ing along it’s fine, if it’s wot it’s fine but if it’s like 1/2-2/3 throttle they are super firm but quick, I think I would like almost factory shift behavior aside from wot. Is that something I can specify and they literally tune in?
Man there's so many updates and repairs that needed to go in the 6l80e we build 3 to 4 a week first was the pressure regulator valve is a must in all 6l80e and 6l90 then the shift kit by superior and must shim also not bashing your friend he just needs to educate him self a little more.
A shift kit dosnt make anything stronger, the clutches itself is what makes it stronger. What I don't get is in 2010 they still have all these problems with transmissions. And newer cvts are even worse, what are they thinking?
@@Trikekid84 he's not talking about a shift kit. Their is literally 7 gm updates that impact the shift quality and reliability. They really should be done at the least.
Can you send me one out to Hawaii can find any here and the want almost 7k to rebuild . 808 291-7862
How much do you guys charge for that rebuild
I'm not sure, it cost me $1100 in parts and my friends labor, if I didnt know him and was just a regular customer, I'd say between $3000-$4000
will you have to retune pcm for this ??
Yes
I know this is a couple years old but can you post a list of the upgraded parts you got to do this? Like names of companies would greatly help.
Mostly precision brand parts
@@Trikekid84 any other upgrades you recommend now after having it for awhile? I got a 2013 GMC Yukon XL 5.3 and I’m slipping in second really bad only at 50%-100% throttle. If I baby it, it doesn’t slip. I’m a mechanic and gonna tackle this myself with the suggestions you made in the video. I added a trans cooler after the radiator one and it helps keep temps below 200 now on a hot 106 day here in Arizona. I also have a friend that’s good with HP Tuners and he’s gonna tune out the torque converter engagement from 1-4 and have it only engage 4-6 and will also bump line pressure up a bit since he is doing that to help with the shifts in those gears where it’s not engaging.
@@chrisblaze6453 nothing besides that a bullet torque converter will last long and work even better. I might get a tiny bit higher stall. Stage 1 or 2 shift kit, trans tune, even more heavy duty clutch packs. But overall it's still been great as is.
Does it shift firm and grab gears strong?
Yeah I can feel the shifts but it's also not a jab, I guess it's how it should be. These new 8-10 speed transmissions are made so you dont feel them shift,I'd rather have my 6 speed.
I have a 2015 denali with the 8l90 and I really don't like the way it shifts. It feels like the converter Is locking up at low speeds, like when coasting into a parking lot or something and when you get back on the throttle it shifts into 1st or 2nd kinda violently and shock loads the driveline. It is also really slow to kick down when say you want to pass someone on a 2 lane. You mat it and it hesitates for about a second or two before it downshifts to whatever gear it wants, and then it starts to feed in the onions. I'm not sure if it's because of all the drive by wire stuff and electronics, but I much prefer the instant reaction of the older stuff.
@codylapoint I agree man. I miss my built 4l60, shifted so mint and throttle never laged like the electronics now days
At 4:31 is that a pop / soda / beer can?
Yup 😂
Can I put a 2011 suburban 5.3 4x4 transmission on my 6 speed 2010 silverado 5.3 ?
They should both be the same 6 speed, but the 4l80e will also bolt on but might need different electronics.
No. Youre too fucking stupid to be able to do it.
@@ThunderAppeal 😂
@@ThunderAppeal _Why... just why?_
@@DoctorRickSanchez Trolling is a necessary part of interneting.
Dont hate the messenger.
How much would a job like this be for a 2014 GMC Sierra 5.3 6l80?
3k roughly? Since we did it all ourselves I saved alot, so not sure exactly. With these good aftermarket parts probably 3-4k almost.
I need a contact for u guys please I sending mines from the Bahamas soon it’s not bad yet but I will need a job like this done please
This is why I bought the truck with a bad trans for $6500. I would have spent around 12k on one with 100k miles, and later on have the torque converter go out or the apply piston crack and then be 15k into the same truck when finished.
@@marcienrolle1762 Automatic Motors, Green Bay, WI
In case I might not be able to ship tranny would it be possible for you to give me a list of parts you used in this build please if you can?
So would an awd escalade have the 80 or 6l90?
Not sure, a quick way to know is that the 6l80e and 6l90e have the +/- button on the shifter to change gears, a 4l80e does not.
@All terrain TV ok cool. Then I got the 90. Thanks.
@@seanwillis86 are you sure you don't have a 6l80e? I'll have to check the other difference.
It's all good. It's gotta be one of the two I guess lol.
@@seanwillis86 Difference is the 6L90 pan looks like the corner is cut off at the back.
Shift flare is what you are talking about at 11:30 . I believe it can be remedied by reprogramming if it is minor
9:05 35 ft/lbs? Shouldn't they be torqued to 53 ft/lbs?
Possibly, can't remember anymore.
35-45 anything past 40 on reused bolts and they strip
53 lb ft. New, used... doesn't matter.
What shop did the transmission work for you? Awesome video. Go pack!
Automatic motors in GB.
@@Trikekid84 Great Barrington, Massachusetts?
@@JohnstonPettigrew green bay WI.
@@Trikekid84 thanks.
I thought the 6L90 T-converter had a 6 lug arrangement…I saw only 3 lugs on this one.
They only have three.
what is first music track?
In this moment, by Highway Saints. The original video that I got it from is gone, but all my music I find on youtube, and then post a private video so that I know for sure that it's not copyright. TH-cam will let you know right away.
@@Trikekid84 THANKS!!!
Didn’t Chevy fix all the defects by the 2011 model year??
Not sure, I think there main problem was torque converters.
@@Trikekid84 these or the 6l90 were used in the Isuzu NPR
Hell fuckin no. When is the last time, GM actually fixed their defects?
Daniel Guerra Read the service bulletins and recalls. They were all updated by March 2011 vehicle build dates and didn’t have any until they changed the vehicles in 2015. 2011s to 2014s are solid.
@@shadowopsairman1583 read 4l80e but not sure, maybe that on a 6.0l gas but diesels might be different.
All they need is a good tune. People still dont get it
The converter is still the weak link
A tune won't fix a mechanical issue
@@bombmanize no it prevents them rather
@@oceanwaves83 yes a tune will prevent an issue but not undo it. If converter is fried so is your pump and the rest of the trans.
How to beef up your GM 6l80E-replace it with a 4l80e
_Yea that's how u downgrade it._
@@DoctorRickSanchez Guess it would depend on if you have someone to perform pump cover milling for you. And a supply of TC's.
low oil pressure? Those 5.3 engines
30 is ok, if it goes any lower I'll look into it more.
O ring in the pickup tube or you may need a high volume pump do to wear and tear in the motor.
@@20tea could be the o ring, I know when people build them up you put some washers on the spring to get more pressure. And drill dimples in the pump so it's not rubbing as much in the housing, holds more oil that way.
@@Trikekid84 With the ls front pumps 20lbs hot at idle is just fine.
Stop using trans gel on these 6 speeds
That tranny has low mile because it comes from a cold region of the country, guessing by the salt marks all over the bell housing area.
The bell housing is the least of my rust worries. This is the 3rd trans rebuild/swap of the trucks life and it only has 176k on it at that time.
Thank you!
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