THIS PART FIXED MY 1-2 SHIFT | 4L60E | SONNAX

Подписаться 8 тыс.

Просмотров 40 тыс.

50% 1

I have been battling a very aggressive 1-2 shift after having my transmission rebuilt. The car drives and performs perfect otherwise, I just really don’t like the 1-2 shift. After doing my own research I found this part by SONNAX and it cured my shifting issues. I believe this also applies for other transmissions as well: 200-4R, 4L60, 4L60-E, 4L65-E, 4L70-E
Sonnax 77998-03K Transmission Kit, 1-2 OR 3-4 Accumulator Piston (.310" Pin)
LINK
www.ebay.com/itm/124327786449
- PER SELLER ON EBAY -
Symptoms:
Poor shift quality
Burnt clutches & bands
Cause:
Wear at the piston pin bore due to repeated reciprocation.
Correction:
The Sonnax patented pinless design with dual seals stabilizes the piston in the bore and provides improved sealing characteristics. Use of the Sonnax part eliminates the need for the pins.
200-4R, 4L60, 4L60-E, 4L65-E, 4L70-E
Pinless Accumulator Piston Kit
Part No. 77998-03K

Авто/Мото

Опубликовано:

5 май 2021

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 142

@RustyWrenches 3 года назад

Nice! Glad you were able to fix it. You've motivated me to take a closer look at my 1-2 shift as well.

@MrGriffin23 3 года назад

Yessir!!! I hope it’s something similar with yours!

@MG-ol3no Год назад

Mine just clunks hard and loud going into second ehen you smash on it.. And will sputter when trying to downshift from 4th to 3rd with low rpms. Kinda wanna replace both.

@bowman4331 2 года назад

Great video! I like the fact that you test drove the vehicle , after you worked on it, confirming that you fixed the problem.

@MrGriffin23 2 года назад

Glad it help! It ended up not totally resolving that issue, but it is a softer shift overall. Thanks for watching and the feedback!

@stephenfallis9374 10 месяцев назад

Iv sat thru endless transmission videos trying to get somebody to show some practical repairs I can do to address this issue. And I picked this video from the title. And I believe this is exactly what iv got to do to mine. Appreciate the time and effort in making this great video.

@MrGriffin23 9 месяцев назад

Thank you for the feedback! I’m glad it helped. Hopefully it gets you closer to a resolution.🙏🏾

@o6luiss23 2 года назад

The smile says it all baby, good video brotha!🔥

@MrGriffin23 2 года назад

Appreciate it! Thank you & thanks for watching!

@user-uk8gc6wu1s 7 месяцев назад

Good to see that you repaired it yourself. I've found out over the years fixing vehicles can save thousands and a lot less grieve . Following youtube videos like yours will encourage others to do the same. Thumbs up to you, keep up the work.

@MrGriffin23 7 месяцев назад

Appreciate that! I try to tackle as many jobs as I can do. Of course I do save some money, but more importantly I learn along the way.

@daddylnglgs 2 года назад

Great video! Detailed and well presented! I'm working on my 93 Buick Roadmaster Estate Wagon. Thank you!

@MrGriffin23 2 года назад

You are welcome! Hope it helps! Thanks for watching!

@icanbreathenow1 2 года назад

Great video! I will be doing this soon for my 98 Chevy k1500!

@MrGriffin23 2 года назад

Awesome! Glad it helped and hope it resolves any issues u may have with the trans.

@atrueamerican2218 День назад

Such a great video. Ty.

@turkeyssr 3 года назад

Another great video.

@MrGriffin23 3 года назад

Thanks for watching!

@nicklehman3984 2 года назад

I wouldn't trust a shop to rebuild unless they could tell me all the upgrades they do to these transmissions. Little parts like this should be factored into the price they charge.

@cfmechanic 3 года назад

Man my fuel guage does the same thing @20:53. Thanks for sharing learning together is favorite part of your channel

@MrGriffin23 3 года назад

LOL! It was the first thing I noticed. Thanks man and thanks for watching!

@allenbiles7032 3 года назад

This was really EXCELLENT Video! THANK YOU!!! You inspired me to do this to BOTH of my 1994 Wagons! (1 = Chevrolet Caprice - 2 = Buick Roadmaster) I'll let you know how it goes! But WOW.... you really did a great, very detailed video and I truly appreciate YOU! Thanks!

@MrGriffin23 3 года назад

Thank u! I’m glad u firing it useful and hope it resolved any issues you might have. In my case, it solved it somewhat. I still get the occasional, but definitely a big improvement for my particular build. Thanks for watching!

@chukchee 2 года назад

Great video. Thanks a lot.

@MrGriffin23 2 года назад

Thanks for watching and for the feedback! I’m glad it helped!

@byrontaylor7526 2 года назад

“SOMETIMES YOU JUST HAVE TO DO STUFF YOURSELF”🤣🤣🤣🤣💯💯💯

@MrGriffin23 2 года назад

🤷🏾‍♂️🤣🤣🤣

@edgarcruzsr9695 2 года назад

@Byron Truth spoken. Doing it yourself..if you can, avoids ripoff or bad work,or both.

@blueberrydrum19 Год назад

Very true because sometimes mechanics try to scam people

@peterparsons7141 11 месяцев назад

Great vid. You couldn’t be more right. I’m so tired of taking my vehicles to mechanics and the bs I have to deal with , when I’m paying them, sometimes its like they think they’re doing me a favour. Like I often say to my wife, I can fix it or fuck it up on my own, I don’t need to pay someone to fuck things up for me… I found the video, cause my 4l60 is having some issues, and it’s all I can do to get my mechanic to change the filter. They spent 4000$ on a “fluid change machine “, and tell me you don’t need to change filters…pfffft. Glad you figured your trans out. This vid might help lots of guys!

@MrGriffin23 11 месяцев назад

Dang! Thanks the feedback! Sorry for your troubles. Hope you can get them resolved.

@GrandmaDebo Год назад

Niceeee 💜💪🏻 Might do this

@MrGriffin23 Год назад

🤙🏾🤙🏾🤙🏾

@cadillac9142 3 года назад

💪💪👍🔥💯sounds good

@MrGriffin23 3 года назад

Thank you!

@beurownboss1554 Год назад

Dude I’m in the same boat, got a hummer h3 with same trans. Rebuilt it and paid good money for the shop to do so but when I got the car back immediately noticed 1/2 shift felt like I was being kicked in the back by a mule. Everything else with the trans worked as it should but shop says the hard shift is no problem. I’m not a fan so I’m thinking I may take things into my own hands as you did. Thanks for the video!

@MrGriffin23 Год назад

Hope it works for you! I still get some hard shifts, but not as bad.

@youngestson6537 3 года назад

Success Success Success 👍🏾👍🏾

@MrGriffin23 3 года назад

YESSUH!!!!

@farfinandalliance 2 года назад

Just picked up a 2008 Tahoe with this problem the owner told me that it was going to need a new transmission sike!! all I need is this new part and I’m all good I call that a win boys

@MrGriffin23 2 года назад

Yessir!!! Hope it workout for you!

@PeterHatch-mx7zc Год назад

Thks for the video ill do it to mine see what happens thks

@MrGriffin23 11 месяцев назад

No problem! Thanks for watching! Hope it helps!

@muchtooffer48 6 месяцев назад

This is none of my business, but if I were you, I would be asking for some money back from the original transmission builder you used. And while you're at it, ask him why you're the one that had to figure out what the problem was. You're a smart guy. Good for you. Frank.

@MrGriffin23 6 месяцев назад

Appreciate it! All good! Can’t do anything about it now. I’ll chalk it up as a learning experience.

@lymack1 2 года назад

Great video, very informative. Have you tried installing the 3-4 Accumulator on the other side of the 1-2 Accumulator? One more thing, Whoever put that beat together is dope. 🔥

@weloveups831 Год назад

I have the same Question. I believe you can replace the 3-4 with the same 1-2 piston at the same time. I haven't seen a video yet of someone doing that except in a bench rebuild.

@stevea6722 9 месяцев назад

@@weloveups831 Have to drop the valve body to do the 3-4 accumulator piston, which means a lot more involved but doable.

@asksteevies4941 7 месяцев назад

🎉nice

@MrGriffin23 7 месяцев назад

Thank you!

@zemanzee8949 2 года назад

did my 06 sierra over the weekend,, fixed the thunk at 1-2

@MrGriffin23 2 года назад

Awesome!!! Glad it helped!

@Ryearthvl7983 3 месяца назад

I have an older 700r4 and the piston is underneath the spring, will it make a difference if I install the spring first with this sonnax piston?

@MrGriffin23 3 месяца назад

You could try both. At worst you will need a softer spring. Wouldn’t hurt.

@michaelturner7641 2 года назад

I've been reading your comments it doesn't sound like your repair was a complete success I'm thinking about doing this myself. Can you share what happened or what you think might be happening has it gotten worse better overtime. Thank you my friend I really enjoy your content.

@MrGriffin23 2 года назад

Thanks for stopping by. So it ended up not completely resolving the issue, however it did soften it up. Every once in a while I’ll get a really hard shift but for the most part it is softer. Just not completely gone. I never changed the spring tho and I hear that helps. So if it bothers me that much I might try that. Hope that helps.

@blairj1409 2 года назад

hi, I saw this was a Technical Service Bulletin from GMC. I don't know if this applies to your vehicle and transmission, or not? TSB 01-07-30-023B - Harsh 1-2 upshift with P1870 DTC - 4L60E Transmission RPO M30 1996 Buick Roadmaster - 1996 Cadillac Fleetwood - 1999-2000 Cadillac Escalade - 1996-2000 Chevrolet Camaro - 1996-2000 Corvette - 1996-2000 Pontiac Firebird - 1996-2000 Chevrolet and GMC Light Duty Truck Models - 1996-2000 Oldsmobile Bravada Problem - Drivers may experience an unusually harsh 1-2 shift because the ECU has commanded maximum line pressure in order to compensate for excessive wear in the bore that contains the TCC isolator and regulator valves inside of the valve body. Solution - Replace the 4L60E valve body with revised TCC regulator and isolator valves.

@MrGriffin23 2 года назад

Thank u for information. My year isn’t in there , but I’m sure there is some correlation. This helps a lot!

@MG-ol3no Год назад

Great video. I have a 2000 silverado 5.3 2wd with 4l60e . I put an Eaton trutrac lsd diff in it. It shifts fine unless you smash on it. If you smash on it it clunks from 1st to 2nd and sputters when trying to right rpm between 3rd and 4th. Any help is appreciated 🙏

@MrGriffin23 Год назад

Thank you! I’m not really too sure your issue tho. Maybe 1st having issues? I hear that’s a main problem on the 4L60e over time.

@JustTruthNews 3 года назад

when you bolt it back into the trans is it just loose? and it pressurizes itself?? Like if you shake it you can here the springs moving? ...... I have a new stock accumulator with the pin but a alluminum piston and when it is put together ready to go in I can here the springs move when I shake it.... I was Just curious about that before i do the install? any help is appreciated Thanks??

@MrGriffin23 3 года назад

It was pretty solid. No play once installed. Pretty straight forward. Once the springs are in their location, they shouldn’t move. Especially if the disc in Snapped in. That spring can be changed also if needed.

@bdtaylor1979 Год назад

I had an 03 Silverado that had the hard 1-2 shift. I replaced the stock piston in the 1-2 accumulator with an aluminum one that looked exactly like the factory plastic one and I had no more hard shifts at all after that. I tried the one in your video but I didn’t like it.

@MrGriffin23 Год назад

Thanks for feedback! I’ll keep that in mind.

@bdtaylor1979 Год назад

@@MrGriffin23 you’re welcome.

@blakebrass125 2 года назад

Seen a few vids of this mod. I want that feeling you got when you knew it was fixed 👌. That made me happy 😂. I have a 93 Chevy K1500 with a hard shift from 1st to 2nd. I'm quite confident that this is my issue. Makes sense. Just had a question about the ball bearing that goes inside the accumulator housing. Do you need to punch it down a bit also into that hole? And how is your ride doing?

@MrGriffin23 2 года назад

Thanks for watching! They give you a couple size ball bearings. Mine just dropped right in. Then I cross hatched/punched it and was good. The car drives great. It did not 100% resolve the issue (hard shift) but it’s better for sure. I think I’d need to go to a softer spring or go take out the Corvette Servo, but I’m just going to leave it. Hope that helps!

@blakebrass125 2 года назад

@@MrGriffin23 I always thought that a harder spring made for a softer shift? Or maybe I'm backwards. Not sure.

@MrGriffin23 2 года назад

@@blakebrass125 I’m def no transmission specialist, but to my knowledge a firmer spring will create a harder shift, slowing down the time it takes to compress the spring - holding the shift longer.

@blakebrass125 2 года назад

@@MrGriffin23 yeah I'm so unsure about transmissions. I'm more of a top engine kind of guy and suspension 😂. I still like tinkering with whatever it is I got so I'll be opening something up at some point

@raidernation24c Год назад

Did you ever figure it out

@GhettoWagon 2 месяца назад

I have a real hard 1-2 shift at WOT or near WOT wonder if this can fix it

@MrGriffin23 Месяц назад

I am not too sure. It’s an easy enough mod tho.

@adwinstead Год назад

Just watched the video. I'm encouraged because I have the same issue with my 2003 GMC Yukon. I guess this video is a year old so can I ask if you've had any issues since you did the modification and is there anything I should be aware of??? Thanks.

@MrGriffin23 Год назад

Thanks for watching. It softened it some what, but did not change it entirely. I was told a softer spring would do the trick, but I’m just gonna leave it as is for now. It’s more tolerable. Lol!

@adwinstead Год назад

Cool. I checked on the Sonnex web site and there is a replacement spring available so I might just order it and see what happens. Preciate ya. ✌🏽

@phillipdelaney2989 11 месяцев назад

@@adwinsteaddid you do that replacement? 04 silvy and she is rough about 50% of the time. Tends to shift decent if I punch it but I dont like to do that

@adwinstead 11 месяцев назад

@@phillipdelaney2989 I did. It helped a little bit. Shift wasn't as hard but it was still present. What made the biggest difference was when I replaced my MAP sensor. I read somewhere that a faulty MAP sensor could cause this issue. Installed new one and now 1-2 hard shifts are gone. Not saying this is the answer but it worked for me along with the Sonnax upgrade. Read below.... MAP - The Manifold Absolute Pressure sensor creates a signal based on vacuum levels in the intake manifold, which indicates engine load. A faulty MAP sensor can cause late, harsh shifts, early / soft shifts, or even prevent the transmission from shifting at all.

@sfh2050 2 года назад

I've a similar issue with my 04 Trailblazer. If I floor on 1st gear, the engine revs with low torque and shifts very hard on 2nd gear almost skidding. If I drive slowly, all looks ok. Any advise?

@MrGriffin23 2 года назад

Maybe the pressure settings or shift points in the trans? Just a guess. Not really sure.

@sfh2050 2 года назад

@@MrGriffin23 long story to check but thanks 👍 much appreciated

@Nzchimeran 3 месяца назад

any idea what causes a slippage from 1st to 2nd? My fluid level is good. Could my fluid be bad? Light brown not red. Happened after I was stuck in traffic for long time

@MrGriffin23 2 месяца назад

Potentially. That’s actually what happened to mine, but I was on a long drive.

@Nzchimeran 2 месяца назад

@@MrGriffin23 found the issue and fixed it , was a broken spring in the 1-2 accumulator. The trans already had the first edition metal upgrade but I bet the builder reused the old yellow spring. I fitted the more modern metal accumulator kit and the truck has been fantastic, smooth change and quick off the lights. Smoked the wheels for the first time since I owned it.

@zacheiriksson Год назад

1 year later. Still holding up or what? Looking into this problem myself and wondering if I'll need to dig deeper

@MrGriffin23 Год назад

Still running strong. Still some hard shifts occasionally, but it is better than before. It might not entirely resolve your issue tho.

@phillipm3799 Год назад

I had a 4l60e rebuilt and it wouldn’t shift into 4th. I put a corvette servo in it and it fixed it but the 1-2 shift kicks like a mule. Idk

@MrGriffin23 Год назад

A buddy of mine said the 1-2 shift kicks like that to the Corvette servo and the gear ration jump from 3.06 to 1.69. Says it’s normal. That what my trans guy said too. Sometimes it is a bit harsh.

@davidmoreno2583 2 года назад

Did you not need the Accumulator Housing Spacer ?

@MrGriffin23 2 года назад

No spacer was needed.

@PeterHatch-mx7zc 11 месяцев назад

The part I bought at PTP has a hole in it but made out of aluminum see how that works

@hansnmify 3 года назад

Will this fix N to D initial delay engagement? My transmission taked abt 3 seconds to engage.. Only from N to D.. After than no slipping no problem downshifting. Engaging to R is fine.

@MrGriffin23 3 года назад

To my understanding it’s only specific to the 1-2 shift. I have not seen it otherwise.

@hansnmify 3 года назад

@@MrGriffin23 thank you so much for ur kind replies.. Got a good knowledge through ur video.. Great job

@Bhdobbs 2 года назад

@@hansnmify there is two other accumulators in these transmissions. The forward accumulator and the 3-4 shift accumulator. The 3-4 shift one is metal piston but pinned and the forward is plastic with pin like the 1-2 shift. I’ve seen the forward one leak and cause the problems you’re talking about. It’s on the backside of the valve body. It actually bolts in to it on the very back sideways.

@hansnmify 2 года назад

@@Bhdobbs thank you so much.. Appreciate your reply. 🙂

@Titian92 2 года назад

I have the same problem. Just had my 2000 Silverado transmission rebuilt and 1 to 2 is a firm shift. Do you think this will fix it?

@MrGriffin23 2 года назад

I think it could, but not 100% if it will work for every application. Mine ended up not actually totally going away, but it did soften it up some. Regardless, it’s an upgrade that’s cheap and doesn’t hurt the performance if it doesn’t end up working.

@Titian92 2 года назад

@@MrGriffin23 I will be trying this next weekend and thank you for the great video.

@robpaul7900 2 года назад

The guy at sonnax told me not to use the inner spring my sonnax piston seems to sit lower than the top of the housing what is wrong with this?

@MrGriffin23 2 года назад

Interesting. I’m not too sure. Have you tried to run it this way?

@robpaul7900 2 года назад

@@MrGriffin23 not yet but it seems ok if it's alittle under the top of the housing my old one looks similar but yeah guy at sonnax says there's no point to use inner spring it will just rattle around.

@robin_db7788 2 года назад

So you indent the metal not the ball?

@MrGriffin23 2 года назад

Correct! You put the ball in first and then you indent / crosshatch punch the top of it so the ball will not pop out

@robpaul7900 2 года назад

How many bolts on your pan what year is your car

@MrGriffin23 2 года назад

Transmission is out of a 2002 Tahoe

@pedrohernandez8516 Год назад

problably they used a corvette servo piston to apply the band , pull it out and install a regular one code 553

@MrGriffin23 Год назад

That’s what I’ve figured out. Thanks for feedback.

@irredeemabledeplorable5227 Год назад

more (tighter) spring = softer shift...worn bore, cracked piston, loose pin= HARSH shift...think of it as a shock absorber

@MrGriffin23 Год назад

Yep! We changed the spring helped some, not much tho. This did help as well.

@highwayouttakes4570 3 года назад

You ever consider upgrading to a 4l80?

@MrGriffin23 3 года назад

When I rebuilt this one I took in my 4l80 to get rebuilt and I was gonna swap it. However, we decided to just rebuild this one up to standards with my current build, goals and driving. Then just used the 4l80 as a back up for my 6.0 that’s in my Chevelle.

@gerardolopez5875 3 года назад

@@MrGriffin23 @ ehat year its your transmission?

@MyPostville 2 года назад

Great video I took the accumulator out today and find out only one spring inside (.the small one ) i guess they try to fix it and forgot to put the second spring ( 07 Silverado ) Where i can get the springs? Tnx!

@MrGriffin23 2 года назад

I would just search on ebay and reference that part or google it. I didn't end up having to replace any of the springs.

@EduardoAguirre-pj3cr Месяц назад

3-4

@larryschaum6280 5 месяцев назад

In reference to the stock OEM pistons. They all break or wear on the pin eventually. Pin wear is more on the metal pistons. Changing the springs really doesn’t help a lot. Most builders, such as myself, have learned to just replace the pistons. Because of this. Also, just fyi. There is another accumulator in the valve body. When it doesn’t move freely, it will also cause the same problem. Pinless is a good upgrade. But if you still have a hard shift. It’s in the valve body. Edit. Some of the newer 4L60E transmissions, only have the one small spring inside the accumulator. Don’t add another spring. It will cause problems. Unless you have installed a shift kit with the replacement.

@MrGriffin23 5 месяцев назад

Thank you for feedback! This really helps out a lot!🙏🏾

@karenchambers9415 2 года назад

1-2 up shift or 2-1 downshift

@MrGriffin23 2 года назад

Upshift

@davidarreola5353 Год назад

How is it holding up with that fix

@MrGriffin23 Год назад

So far so good. It still has a hard shift occasionally, but it is better.

@markberkley8233 2 года назад

folks do yourselves a favor and use cork gaskets on the pan

@MrGriffin23 2 года назад

Thanks for chiming up!

@james10739 3 года назад

Well don't put Corvette servo in if you want soft 1-2 shifts

@MrGriffin23 3 года назад

The 1-2 accumulator softened it up.

@12masterr 2 года назад

Will this part cause also a delayed or slow 1 to 2 shift?

@MrGriffin23 2 года назад

Not that I’m aware of.

@kingpest13 Год назад

Just buy the whole accumulater

@MrGriffin23 Год назад

Thanks for advice. We r good to go.

@james10739 3 года назад

Hard shifts are fine and generally causes less wear on parts

@MrGriffin23 3 года назад

Thanks for info!

@davelane1089 Год назад

Replace the solenoids while you are in there.

@MrGriffin23 Год назад

Thank you for feedback!

@mozpogson3639 2 года назад

At the 20 minute mark, you put your foot down & the fuel level dropped, so there's your next mission to fix.

@MrGriffin23 2 года назад

Thanks for watching! Yeah, it’s the stock tank. No baffle, but I swapped the sending unit to run EFI. I keep the gas level 1/4 or higher at all times and performs fine for daily street driving.