2 4 Band Servo Pin Setup, One of the most critical procedures on the 4L60e and 700R4 transmissions.
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- čas přidán 22. 08. 2024
- Setup procedures for the 2-4 Servo. Choosing the correct length is critical to band life in the 4L60e and 700R4. Here I detail the procedure...
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#4L60e #sonnax #transmission
Thanks for the video. You're seeing me through my build right now and I appreciate your info.
Fantastic! I'm glad it's helping you!
Thanks, most people won't show as much.
You're welcome
I see a big hair by the anchor lol. I'd probably be happier having it on the tight side so the 2-4 would grab better. Now I see that tool work now I want one. That is so fast and easy. What I like about your videos I see you doing things you don't see others do.
Yeah, caught that hair off camera...lol. Disadvantage of a house with three dogs, one a blonde retriever...
@@IrocinZ
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Hi, good vid though i don't know why you make band adjustment with no pump in. You can see the drum/ shaft move when you apply air. Have you thought about checking after you set the servo shaft length with the tool and pump in, also fit the 4th cover and snap then use dial indicator to cover see how much the cover moves in away from snap ring at rest. This is how I set my transmissions. I have found too long I won't get the snap in and if it just rolls in without force its dam near right.. Plus backyard builders would benefit with such knowledge. more than 1 way to skin a cat.
Thats a btte explanation video than lsat one, but I've already installed trans! But that ok have a great shift, ( a little tigh,which is just what I wanted) Only problem,musta tore converter seal when goin up oh well somethin todo! Thanx again fortakin time to do the videos. joe😄
Your welcome!
Miss ya, been looking for new vids 👍
Holiday, and ran out of room on my editing computer....still haven't finished my new one yet. Still here tho....
Great video Smitty. Real world builds. I have the same GM tool. Not cheap, but at least you know.
There are other ways to do it, but to me, this tool just gives you piece of mind that it is correct.
Thank you! helped me out
You're welcome!
I’m having a 2-3 slide while accelerating on a fresh rebuild, what could that be?
Most likely, its an internal leak. Either in the 3-4 clutch setup or the 2-4 servo, which is also the accumulator for the 2-3
Dude that torque wrench is badass
Thanks! It was well worth the money for what it does...
Sonnax gives different specs for use of their servo and that tool. Its in the instructions. It is not the same as factory.
Yes they do. But using the tool in the factory method has never failed and very repeatable. Its just how I prefer to set them up... The principle is the same, not too loose it doesn't apply, and not too tight it burns up the band....
Hello,
Thank for the video! The spacer that for the 4th servo size is taking the place of the grinding-off the tip of pin on the stock pin?
No, the spacer is to protect the aluminum of the servo from brinelling by spreading the load at contact. You still have to set the pin depth the same way...
If that distance to the line is off would it cause a delayed shift between 2500 and 3000 rpm . I’m having a delay 3rd gear shift and holding a steady rpm at 3000 to get the shift to 3rd.
Not necessarily. It would cause more of a slip than anything. The delay can be more caused by a sticky valve or pressure issue or just the programming in the PCM/TCM.
U have to put ur Steele plate in
What steel plate are you referring?
How do you set the adjustment/zero on the threaded marker pin with the line?
That is preset and no adjustment should be made. As far as adjusting it once its been tampered with, I'm not sure...
I'd watch an hour long video 😀 👍👍
Good to know!
...if you could see what was being done?
Hey I have a problem with my 2002 4l60e fresh rebuild but I don’t have a second gear it rev’s high in first shift straight to third and then shift to overdrive. I can’t mainly shift to second either it’s like it in neutral. I put a Corvette servo in it shifts faster still skip second.
If you have a check engine light, you need to diagnose that first. But I'd be looking at a shift solenoid or a missing/cut seal on the 2-4 Servo. The other possibility is the 3-2 downshift valve in the valvebody is in backwards or checkballs missing or in the wrong holes...
Ok thanks no check engine light I took it to a shop they put a scanner on it not a really expensive one but a good one and he drove it the only feedback from him with out going into the transmission is it’s has no second gear
@coffeeblack5577 okay, well I gave you some things to look at without taking trans out, which I don't think you will need to, especially since you have 4th
Thanks for the video.
I just had a 700r4 rebuilt and what is happening is a delayed shift to 4th gear.
I have adjusted the detent to where the trans shifts great in every gear, I get full throttle right as the cable bottoms out but 4th is sloppy to engage.
If I pull it 1/8 or so more, the 4th gear engagement will be better but then I'm causing the other gears to shift later and I'm losing full throttle.
What do you think?
Put a tighter spring in the 3-4 accumulator, which will require the valvebody to be dropped...
@Irocin Z So my 3rd and 4th gears keep slipping. Is that something a corvette servo can fix or is the transmission going out? I can get up to speed. But as soon as I apply gas. It slips. Tried adjusting the TV cable too.
Im having an issue where if I go from a stop sign and apply throttle it'll move forward in 1st up to around 4-5k and then shift to second. If I release gas pedal at 2.5k it shifts smooth as it used to. Not sure what this could be so I've been chasing down leads on the youtube all day. You seem super knowledgeable and you actually respond to comments. Does this problem sound like anything you've heard of?
Are we talking about a 700 or a 4l60e?
@@IrocinZ 4l60e
@@chuckplainview4085 Does it have overdrive? How about reverse? Speedo working? Check engine light? Fluid level and condition?
@@IrocinZ Im not aware of what overdrive you mean but it doesn't have a push button or anything like my fords did. Speedo works and it shifts into all prnd321 perfectly on the column and all gears function and do what they should. The fluid was down a little but color was typical ran through but not burnt. It has no check engine light on at all
@@chuckplainview4085 The "d" on your shift indicator is overdrive. Third gear is 1:1. How much throttle are applying from your stop sign? One quarter, 1/2, 3/4, or hurry up, I got to go?
Hello, I have a truck with a 700r4 transmission. I had a shop rebuild it two years ago but haven’t drove the truck until recently. I found that there was 2 issues. 1- the trans will not go into second gear, at all, ever, under any circumstances, it’s like 2 doesn’t exist. The other issue is I couldn’t hold 4th gear, I could shift into 4th on the highway but it would always kick into 3 with light throttle. I checked the Governor, it’s good and miss freely. I also checked the servo and found the seals damaged from improper installation. I replaced the servo with a corvette servo (mostly to get the new seals) and 4th gear now works great! However I cannot get the trans to shift into 2nd under any circumstances. Any idea what I should look at or replace next?
I have a gauge coming this week so I can test the line pressure. However the transmission is like not even trying to engage second gear. It’s not like the band is slipping, it just doesn’t even attempt to go to 2. If I manually shift from 1-2, go from 3-2, or try to start and drive in 2, it just doesn’t even try to go to second. Any tips or advice will be appreciated. I’m going to check the pin travel after work tonight
I would be checking for a missing checkball in the valvebody or possibly stuck valve. Its odd that you have 4th and not 2nd. It can also be caused by weak line pressure or the TV cable not hooked up, misadjusted. Other than that, with out doing diagnosis hands on, hard to say for sure. But those are the things that I would check.
@@bpdispatch6433 saludos! me gustaría conocer cual fue la solución de tu problema sobre la segunda .
Need help I tried air checking my band and servo and the video I saw show band moving on both sides my band moves only on one side? Is it because of the anchor being in on that side probably? It's the box wrench 2-4 servo video. It's worrying me alittle any advice would be appreciated thanks man.
You may not see any movement from the anchor side. Thats nothing to worry about as long as the band is not in a bind and the hole of the band is resting on the anchor pin...
@@IrocinZ if pin is too long will it cause that? Im gonna have to buy one of those Kent Moore tools it's worth not ruining the transmission band after putting it in the truck..
@@robpaul7900 💯
No doubt you know these trans - BUT - put camera opposite you for better view.
Haven't figured out a good way to do that yet. Limited by my camera equipment and mount...
Thx for video.
2000 Chevy 4L60E...pieces of needle bearings in pan,,what will cause this?? Please help.....thx
Torrington bearing failure. You'll have to tear it completely down to find out which one....
@@IrocinZ what are the main causes of torrinton bearing failure...T I A
@@castledomeknives9395 The most common is lack of lubrication. But heat, age, debris, overloading, which again causes heat, and if it doesn't get enough fluid to cool it then it fails...
@@IrocinZ thanks..i appreciate your help
Any chance your willing to rent that out?? I dont rebuild trans often. To pricey for me to just aquire it to have. Or any idea where i could rent one?
Unfortunately, no on both questions. I understand it is pricey. I'm sure inflation hasn't helped. You might see if a local transmission shop has one they'd let you use...
@@IrocinZ thats what I figured. I wouldnt either. Yeah im going to reach out local and see. Thanks
Do you know a part number or year to get the soft plastic input housing to output shaft bushing? Mine shattered while putting my 700r4 back together. I dont know what happened. But I dont want to use the hard plastic again.
Does the Corvette servo pin work ok do I have to worry about using a dial indicator I'm replacing servo without trans out of truck?
The pin is the same. The Servo is what's different. Swap your pin and you shouldn't have to measure anything...
@@IrocinZ thank you sir
@@IrocinZ hey man my old servo snap ring is rusted to hell live in Michigan how do I get it out
@@robpaul7900 Lots of PB Blaster, soaking, and if you can smack the cover in the center with a hammer to dislodge the cover, it would help the snap ring come loose....
@@IrocinZ hey I have another question been soaking in penetrating oil wire brushing. Still can't get my cover to move, is there a chance I could pry snap ring out without pushing in the cover? Or is that not gonna work? My transmission is still in the truck so it's hard to be able to swing a hammer too hard but I need a plan to get this snap ring out any ideas?
I have a problem with@ 2006 4l60 sometimes instead of going from 1 to 2 she goes in neutral then I need to come to a complete stop and place it in park then to Dr then she fine for awhile ....any ideals thanks and she has no codes I'm a sub
Sounds like there might be a valve sticking in the valve body, or a shift solenoid dying. Does it matter if the trans is hot or cold or is it completely random?
@@IrocinZ no dose not matter if cold or hot only dose it about 3 times a week
Every time it's done it fluid should be hot and yes it's completely random some times I can drive all week and no problems then other times it may happen 3 times in same week
@@billybritt5334 when it does it, try to manually shift it to 2nd and see if it goes in
@@IrocinZ it won't I halft to put it back in park then I can manually shift it or auto
Im 46 yrs old if you take any longer i might not be able to finish the video
Lol...can't make everyone happy...
@@IrocinZ it was helpful not bad just one of them things i was in a frenzy tryin to figure it out but thank you for ur post
NEVER use cloth rags when work on at's, ll nt gets on valve ody stcks
It sure can. I prefer lint free towels, but sometimes you use what you got...
lol
I can't watch this cause of the dam music playing
There are others without music. I was trying things out and the music got a thumbs down. So the later videos don't have any. Sorry....