4L60E Cracked Input Drum
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- Опубліковано 13 жов 2024
- In this video, Overhauled this Transmission maybe 4 years back, got the car back slipping in 3rd gear. I air checked the drum to make sure i can hold pressure for 3rd clutch and found the drum to be cracked. Swap parts to the new drum and air check again to make sure the 3rd clutch can hold pressure and it was good to go. Thanks for watching, Please Subscribe.
It always feels good to discover the root of an issue like this... It goes back together with confidence; I love it when this happens.
Yes, i agree with that
Considering how busy you are I appreciate all the more, you taking the time to film these videos to pass on your knowledge.
Thanks for watching, Currently have 6 transmissions apart that i'm working on
You can ALSO see the FLOW to the LEFT of the Check Ball...there is a definite up-flow of darker fluid traveling up on the outside wall. I'm sure there is a leak where he is indicating but I saw a more defined and prominent leakage to the LEFT of the Check Ball and that leak was blowing across the fluid he poured in.
It is easy to see because of the darker fluid flowing up the side of the input drum to the LEFT of the Check Ball.
The Drum had seen better days and for him to over look this is so normal in about any shop...including when I had mine.
HE FOUND IT AND THAT IS MORE IMPORTANT THEN WHEN. At least it didn't get back in the vehicle and have ANOTHER frustrated customer with a preventable come-back.
I give you a full DOUBLE-THUMBS-UP here and I admire you for showing and admitting you missed it the first time...ANY mechanic that tells you he never makes a mistake is a LIAR or just hasn't seen his mistakes come back yet.
It Takes a lot of inner confidence and a Good sense of humility to SHOW for instructional purposes how you missed it...no matter the excuse of being so busy...and how to check and find hidden or unseen cracks or other issues not normally seen by normal and simple visualization in the tear-down.
This is excellent in that it shows how more intricate and detailed a REAL Mechanic works to find and REPAIR any part. A REAL Mechanic takes more than just knowing how to use a wrench...It takes experience and dedication to your trade to repair anything completely and properly for things to last.
Thanks for the example and explanation on how to find the unseen. Great Video...Thanks again.
Yes, i'm glad i found that, i always air check the drum before i disassemble and i forgot so i checked it when it went back together and found the problem, would have lasted just a couple of days. Thanks for watching
Thanks for showing a good working knowledge for repairing and keeping the transmission working.
Thanks for watching Mike
Done 100s of these, never seen one crack like this, good find,
Thanks Ryan
Same here, done 100's of these. coming out of the hot wash tank I grab the drum and check for any play in the shaft. Found quite a few.
Gary thank you for sharing all your expertise and knowledge.
Fighting a similar issue on a Hummer H2 4L60, having the very sloppy 2-3 shift. Unit was re-overhauled and air pressure checked by the rebuilder.
Have you seen the computer internal ground for the shift solenoids continue to be a problem even into later models, as this is a 2003?
I know this issue was mainly on 96-99 earlier 4L60s.
Main concern is the only issue found during 2nd overhaul was severe band wear, which would add evidence to a shift solenoid issue.
Units line pressure looked good while driving, but I did not see the line pressure increase that is supposed to happen on 2-3 up shift.
Again thank you for your insight.
Thank you for sharing your knowledge Gary
Thanks Joe
Your a legend! Great test gary
I've more than one of them nightmares. Awesome info, thanks
Thank you
This is so much good informations thank you very much
Any idea what plover it’s all gear work good
Great video sharing
Thank you
Would this cause a "component" slipping also code?
I have this code still after new torque converter, new pump bushings and a PWM lockout update? 2006 envoy 4l60e. Thanks.
do you have the P0894 code?
@@GaryFerraro I sure do Sir, The clutches looked good tho during inspection. I know it don't take much to set that code.
@@FixingWithPassion Well if you changed the converter and bushings, very possible your valvebody is no good. Do you have a scan tool that can read converter slip?
@@GaryFerraro No I don't. The valve body is a new rebuilt one with the PWM delete. Just wondering if i missed a crack in the drum. Thanks
@@FixingWithPassion What is the car doing? when does it slip
Every time I do this I end up w face fulll of trans fluid. Excellent vid.
Great job Mr Gary !!!!
Thanks
Thank you Gary.
Thanks for watching
So could you tell me what that does to a truck. They just told me they think mine is cracked because of what I’m telling them
I think it was just a weak point, i spoke with a Tech advisor about it he said just change the drum
@@GaryFerraro thank you
What you think it is whenever a transmission its drivable in 2nd or 1st but not drive or 3. But when im speeding and switch it to 3 or D it works
so no move in drive range?
@@GaryFerraro thats right no movement at all in drive
@@OscarGomez-jh2sz you either have a bad low sprag or worn off teeth on the forward clutch pack
Spun input sprag
Greetings from Qatar how are you Mr.Ferraro ? I would like to ask is there any pdf file or repair manual for the 725 Mercedes transmission 9G?
you mean the 722.9 7 speed?
@@GaryFerraro no Sir , I mean the new Mercedes-ZF transmission 9 speed it's called NAG3 725.01 used alot on recent Mercedes Benz lineup vehicles like S /E/G class . It has the same ZF 8/6 hp transmission plastic oil pan with. Extra planetary set and 1 reverse speed
@@GaryFerraro same ZF oil pan I mean the same design language but with 2 integrated filters ( 2nd filter for the his pump)
@@AhmedMohamed-hk3io ok, No info on that that i know of
@@AhmedMohamed-hk3io It's a plastic pan? Haven't seen one of those yet
What is the benefit of using a Zpack for this drum
Zpack is used for performance, the 3-4 stack up is i think 9 frictions
Yeah,crack is from the checkball and clockwise.
Im have 2003 Dodge Ram 2500 5.9 diésel transmission work good but yesterday when I’m home put reverse and no work
All forward gears are good? Does this move forward in Neutral?
@@GaryFerraro yes
Yes does move forward in neutral
@@juanarellano4896 ok, then your forward clutch pack is locked together and will not release
@@GaryFerraro so what need to do rebuild