If the spring(s) look good, and you aren't finding any other issues with the piston or seals; or if you've replaced these parts and the problem persists, drop the valve body and inspect the separator plate. Specifically, look at the 1-2 shift check ball hole in the plate (although you may find some of the others have issues as well). The hole tends to wear into an oblong or elongated (out of round) orifice and allows fluid to pass through instead stopping it. In some cases, the check ball can push all the way through the plate. The symptoms are almost identical to an accumulator seal or spring problem.

For the "cross hatch" a T45 torx bit works great and looks really cool too.

Very informative. Thanks for the accurate description and for showing with the new components how it went back together. Great job!

@paytonjeremias8738

2 жыл бұрын

Sorry to be off topic but does any of you know a trick to log back into an instagram account? I somehow forgot my login password. I love any assistance you can give me!

@jeremiahdeangelo5730

2 жыл бұрын

@Payton Jeremias instablaster :)

@paytonjeremias8738

2 жыл бұрын

@Jeremiah Deangelo Thanks for your reply. I got to the site through google and Im trying it out now. Seems to take a while so I will get back to you later when my account password hopefully is recovered.

@paytonjeremias8738

2 жыл бұрын

@Jeremiah Deangelo It worked and I actually got access to my account again. I'm so happy! Thank you so much you saved my ass :D

@jeremiahdeangelo5730

2 жыл бұрын

@Payton Jeremias glad I could help :)

Thanks Bro... I appreciate the way you explained the process.

Great video, thanks for your input.

My prefered shop has top tier diagnostic skills, but they dont like to repair engines or transmissions and always try to push for full replacement. They want to replace the trans because of my rough 1-2 shift (it was in for unrelated engine issues) but this may just solve that! Thank you!

Opened mine up and instead of two springs I found 3 large nuts (along with a cracked plastic piston. No wonder it shifted worse than a dropped clutch. Bam from one to two. BTW, you should have warned that when you apply air to push out the old piston expect a spray of trans fluid all over the place!

@dfamilykd

2 жыл бұрын

Hi David Moreno, When: while replacing The 1st to 2nd gear Shift accumulator valve located next to the valve body. Apply Is a generous amount of automatic transmission assembly lube directly on the accumulator piston and in the bore. The piston has a Teflon or Rubber ring The Lube is similar to Vaseline & allows smooth assembly. Automatic Transmission assembly lube Is designed to dissolve away. Recommended brands: ATP, ASSEMBLY GOO or SMART BLEND. The LUBE will be GREEN or BLUE in color. In the old days we used Vaseline they are similar in Is texture & viscosity. Kenneth ^

Hello everyone! To watch the full upgrade WITH the crosshatch, please click this link! Sorry for the confusion. kzread.info/dash/bejne/ZISKmJSHksm9ls4.html

I use those they are awesome especially if your pin bore is wore out, was chasing a lockup issue one time thought it was the tcc regulator valve blocked it still had a hard 1 to 2 shift replaced the 1/2 accumulator with pinless and also the forward accumulator in the valve body BOOM fixed it. In my current 4l60e project I tapped the bore holes with a 10-32 tap and put in set screws with red locktight I think it holds better than those ball bearings (I have trust issues) and its reversable.

@howtofrank502

3 жыл бұрын

Awesome! Thanks for watching

@james10739

3 жыл бұрын

Ya I'm not sure how well I staked them just because it's recessed and all but that's a good idea

@lawnops3662

3 жыл бұрын

Crack my housing trying to stake the ball. Tapping the next ones 👍

I have a 2008 silverado that just started to do the hard shifting from first to second gear. Will be doing oilf filter and this upgrade this weekend thanx for the great explanation. 👍

@frankiando30

3 жыл бұрын

Did you replace the accumulator? if so did the hard shift go away? Or what was done for your hard shifts to go away?

@gmtech-ug5zq

3 жыл бұрын

@@frankiando30 yes new acumulator and new oil filter service that did the job.👍

@howtofrank502

3 жыл бұрын

In the description there is a link! Hopefully that will work for you

I can't wait!

Nicely done 🎉🎉🎉🎉🎉

i have the TH700 700R4 transmission i was wondering if i can go with the sonnax pinless accumulator for the 1-2 and 3-4

When you say the ball bearing needs to be flush to the surface, are you talking about all the way to the bottom of the pin bore or at the top?

Can this cause slipping - mainly when down shifting ?

Will it make the transmission rev up shifting gears

If you want a firm shift 1-2 on 94 up you turn that piston upside down push it to top of housing put the springs back in between the piston and separator plate just opposite of way you take it apart according to transgo shift kit

@howtofrank502

4 жыл бұрын

Very interesting idea! I’ll try that if I ever get my hands on another Chevy haha

@bamadave1983

4 жыл бұрын

If have valvebody off always take the 3/4 accumulator you put two of them in that hole one like supposed to go and another upside down no spring you do this on all 4l60 to improve 4th gear

Thanks for the detailed explanation. My 07 Sierra is having the harsh 1-2 shift intermittently. I purchsed the Sonnax Accumulator kit and Purple Spring # S74926C. I'm hopign this resolves my issue.

@testmcgee9230

3 жыл бұрын

If it’s intermittent I doubt it’s a mechanical problem. Try disconnecting and reconnecting the wiring harness to the transmission to clean those contacts. If you decide to check solenoid resistance, do it all the way from the ECM-side harness connection to check the wiring and connection integrity.

@atxjax1

3 жыл бұрын

@@testmcgee9230 Thanks man. it wound up being that my Bank2 O2 sensor wasnt working. replaced and now all is smooth.

@budthechud3408

2 жыл бұрын

@@atxjax1 really? All because of an 02 sensor? What brand did you replace with?

@atxjax1

2 жыл бұрын

@@budthechud3408 It was because when I put my headers on I put the upstream O2 too far from the exhaust stream.

My 2018 shift hard on the down shift not the up shift?

Also I noticed you had mentioned it is 94 and up does this not not apply to prior. Yrs? Wanting to do this to mine but it's a switched tranny so idk what the specs R we think it is a 92 is why I am asking best regards

What was the end result? Best regards

Is the accumulator housing the same on 700r4 and the 4l60e? Anybody know mine is busted

Do you know part number for big spring?

Pressure side is on the inside, why would the springs go there and the piston against the valve body. Piston will never move..

I may be wrong, but since the transmission shop didnt change that piston to aluminum its unlikely those are not new springs. But, its ok i never do and never have any problems.

Did you ever post a video where you were "Sure to report back with the results"???

Thank you

Why a black screen can't c

thx for the excellent vid. very informative . mine shifts hard once engine is warm 2 to 3 mins ,, you still recomend the 1 2 accumulator change ? thx

@danbrown6941

Жыл бұрын

servo

I Connfewsed, why he referring to the Piston as Accumulator ¿¿¿¿

I have an 03 silverado that shifts hard from 1 - 2, also 2 - 3, but not as hard. It has a little whine at the top of the gear before it slams into the next gear as well. Does this sound like an accumulator issue to you?

@howtofrank502

4 жыл бұрын

Hi there! While I did have a hard 1-2 transition, it wasn’t anything that I would consider a slam. May I ask what your mileage is? I would do a fluid drain and fill, as well as replace your filter, 1-2 accumulator, and your A and B shift solenoids.

Sonnax recommends not using inner spring. Also firmer the spring softer the shift if the spring compresses easier it makes for a firmer shift.

@extremezd

Жыл бұрын

Could you provide a link where sonnax mentions discarding the inner spring? I'm curious because I've never read that before. Thank you

@beetee801

Жыл бұрын

I don't believe any on this info is correct. Stiffer springs give you a stiffer shift. And the kit I got from sonnax came with both inner and outer springs.

@anthonycrosier8824

Жыл бұрын

@@beetee801 ur wrong

@beetee801

Жыл бұрын

@@anthonycrosier8824 yea, I did the research and I stand corrected.

@MikeSmith-nu9wt

3 ай бұрын

I bought my 08 new its a virgin , there was only one spring in mine , the bigger one , 334,000 miles its never been to a shop , ive done all the services so i know its original . It didnt fix my missing second gear , it might be the band is gone , but im gonna check that 1 2 ball in the valve body plate , i got another rebuilt tranny 2wd ,but it got flooded with water , mines 4wd ..im gonna swap the valve body ,after i clean it up , i think my band is burnt though , gotta try anyway ..glad i got a hoist ..

Thank you ! Did this solve your harsh shift from 1st to second ?

@howtofrank502

4 жыл бұрын

IRONWOLF _OMEGA Sorry for the late reply, but yes it did! I also did several transmission upgrades, the list is located in the description. Thanks for watching

I have 2 questions...what is the other ball bearing for??? Also...I have a hard shift in my 700r4, as soon as you go into drive (only). Other shift points ...no issues. My trans was rebuilt, but I do not know if it has a shift kit...seller could not remember! Would this fix my hard shift into drive ?? Thanks for your help.

@howtofrank502

4 жыл бұрын

William Birnbaum The 2nd ball is for the 700r4 accumulator housing, as this kit is compliant for both. The 1-2 accumulator will not have a affect on your Park to Drive shifting error. There is a Forward accumulator that can possibly be your issue. I would make sure your engine is idling properly, as a high idle will cause a “kick” when selecting a gear.

@pmotorsports8276

4 жыл бұрын

"U" joints

Hi your video is very helpful thank you for that. I have a question what is the Bolt torque when reinstalling shift acumulator?

@howtofrank502

4 жыл бұрын

Hey there, thank you for watching! I have read that it is 8lb/ft on each bolt, according to this link: www.gmtransmissionparts.com/4l60e-torque-specs/

Could this cause not upshifting into 2nd gear at all? My 700R4 winds out 1st and shifts into 3rd. From 3rd it can be downshifted into 2nd, and it still has overdrive

@nickkane8690

7 ай бұрын

Hey brother any luck figuring out the problem? I’m having a similar one right now.

Stupid question time: If you deal with the hard shift and not change out the piston; What further damage would be caused?

@howtofrank502

3 жыл бұрын

When your transmission shifts harder than usual, it breaks off tiny bits of clutch material every time. If this happens too much, one of the clutch packs will fully degrade and your transmission will not shift at all! The 4L60E is a fairly fragile transmission, so ignoring a repair wouldn’t be the best idea. Thanks for watching!

Did your check engine come on before changing......transmission codes like P0716......

@howtofrank502

4 жыл бұрын

chris chris Hey there! I did not have a code. That seems to be a code for your Vehicle Speed Sensor, please watch this video for help replacing it. kzread.info/dash/bejne/d3ymrMtyk7vKhNI.html

My 700r4 1-2 shifts really late..

What do you do with the bigger ball bearing??

@silentbravo

Жыл бұрын

it probably fits a different year transmission where the hole is larger for that pin. So they send both sizes to cover all

I took mine out and my big spring was broke

Just curious, have a 00 Silverado with a rebuilt 4l60e, bout 6k mikes on it. It’s doing this thing where from the 1 to 2 shift, it sometimes requires a really high rpm rev like 3k before it shifts out from 1 to 2. This not the kind of hard shift your talking about, is it?

@james10739

3 жыл бұрын

That might be in the tune but I don't know

@phillipmota5945

2 жыл бұрын

Same problem....And can't get a proper answer anywhere..

@juanmarshall4083

Жыл бұрын

The GMC Sierra forum explains about 10 symptoms and fixes that's why I'm looking at the first second shift accumulator because when I go from first I have to rev it up to 23 mph or so and come off the gas and then it goes into second

@CrucifiedPecker

Жыл бұрын

@@juanmarshall4083 did you ever resolve the issue? Having exactly the same with my 02 'Avalanche

Hi mate does the painless only apply to the later 4l60es cause mine is a 2000 model .

@howtofrank502

4 жыл бұрын

This applies to your model! They’re very much the same transmission, except 2011+ gets a little tricky.

@user-lw9bd1bj7q

7 ай бұрын

I got a 1996 and my accumulator is different on my 4L60E@@howtofrank502

Mine drops deeper into the bore by 1/4 inch.

I have an 06 Trailblazer and i only get the harsh/hard 1-2 shift after driving 30 minutes on the highway. I had the valve body replaced but still happens after driving on the highway. Could it be the accumulator?

@kucickula

2 жыл бұрын

did you fix it?

@alanmendez3912

2 жыл бұрын

Try tcc valve

Would this work on 2002 tahoe,thanks

@howtofrank502

3 жыл бұрын

Yes it would!

Hey my name is Rodney? Can you help me get the 1 2 kit and accumulator

@howtofrank502

4 жыл бұрын

Hey there Rodney, please click the link posted to purchase the part: Sonnax 4L60 4L60E 4L65-E & 4L70-E Pinless Accumulator Piston Kit www.amazon.com/dp/B00BCN9Z5A/ref=cm_sw_r_cp_api_i_1PM-Eb9CZBCPS

Will this solve a banging into reverse?

@howtofrank502

3 жыл бұрын

No, but a filter and fluid service might help. What is your mileage?

Are you sure the symptoms of this is hard shift from 1st to 2nd? My 4L60E goes from 1st to 3rd gear. MINE will not shift into 2nd. After reaching 2500 RPMS, only then itll shift and it goes straight to 3rd, skips 2nd gear. I ask, bcoz many are under the impression their vehicle shifts hard into 2nd, but in actuality its 3rd gear it's shifting to, not 2nd gear. PLS ANYONE! Please provide more info on this mattrr and correct me if I'm wrong about something I mentioned. The tech at GM told me I have no 2nd gear, when all along, I assume that was a hard shift to 2nd gear.

@juanmarshall4083

Жыл бұрын

In the GMC Sierra forum the tech list at least 10 different symptoms and fixes for different problems it sounds like you're on the wrong video.

The new setup has the pistón feeling much harder to push than the original? Should I be worried? I don't want to install and realize it is worse than before

@nickkane8690

7 ай бұрын

How’d it go for you?

@gato_negrom1787

7 ай бұрын

It went well. I tapped the hole and used a set screw and red loctite instead of the ball set up. It drives much better. A+

Do I push it in all the way down??? I just did that. And now it's below flush. I'm guessing this is fine since what's the point of the springs..

@howtofrank502

3 жыл бұрын

Yes the piston moves when needed, you’re fine! I wouldn’t push it any further than that though

@dnegel9546

3 жыл бұрын

@@howtofrank502 haha. Thanks for the quick reply I'm literally doing this right now. I actually pushed it in all the way. Should be fine. Doubt I'm stronger then the springs. I'm doing the separator plate right now.(transgo).

@justinrampersaud1948

2 жыл бұрын

Did you have any issues pushing it past flush ? I pushed mine down by hand and let it seat using spring pressure. Haven't installed accumulator yet though because I was worried it's to far down.

no entiendo el ball al voltearlo se va a salir del orificio

@howtofrank502

4 жыл бұрын

Henrri Flores hola! pasemos a 3:25 kzread.info/dash/bejne/ZISKmJSHksm9ls4.html

Ya forgot to cross- hatch the ball bearing. Woulda been a good thing to show. Aside from that, very helpful video. Thanks for taking the time!

I pulled my 2005 Chevy 1500 transmission apart,only one spring in the accumulator. ????

@beetee801

Жыл бұрын

Same here, was wondering if it's ok to use 2. What did end up doing?

@beetee801

Жыл бұрын

Just an update, I used the sonnax violet outer with a gm oem pink inner spring and my truck shifts awesome. So I had 1 spring but put back 2, was worthbit.

@sw3124

Жыл бұрын

I did the same. I put both back in.

Great how to video! However, you missed applying the transmission assembly Lube to prevent chafing during assembly & Startup.

@davidmoreno2583

2 жыл бұрын

When/where would you apply the transmission assembly lube ?

@dfamilykd

2 жыл бұрын

Hi David Moreno, When: while replacing The 1st to 2nd gear Shift accumulator valve located next to the valve body. Apply Is a generous amount of automatic transmission assembly lube directly on the accumulator piston and in the bore. The piston has a Teflon or Rubber ring The Lube is similar to Vaseline & allows smooth assembly. Automatic Transmission assembly lube Is designed to dissolve away. Recommended brands: ATP, ASSEMBLY GOO or SMART BLEND. The LUBE will be GREEN or BLUE in color. In the old days we used Vaseline they are similar in Is texture & viscosity. Kenneth ^

Will this cause me to have to let off gas for it to switch from 1st to 2nd?

@phillipmota5945

2 жыл бұрын

Same problem and CAN'T FIND AN ANSWER ANYWHERE....

@danielhall2982

2 жыл бұрын

Okay got mine fixed here's what I did take a shot in the dark I studied up on the system seeing how everything switches what it takes which is I put a extended servo pin in my transmission never even slipped the first time since then and that's been about 3 months may not work for you but it did for me just the thought extended servo pin

@phillipmota5945

2 жыл бұрын

@Daniel Hall I have a feeling i have to open the pan. I have zero Check Engine lights and that most likely means this video saved me. Thanks though 👍👍

@danielhall2982

2 жыл бұрын

Absolutely absolutely anytime brother you know I'm I went to man I beat my head up against the ball so long trying to figure out that issue and I've never tore up automatic transmission even so much is the pan as far as I ever got as far as ever wanted to get they are extremely intimidating but after months and months of doing nothing but research on that transmission figuring out how it shifts what causes it to ship where does it build pressure I finally ventured into pulling the pan pull the valve body off and checked everything out redone everything everything look good I mean could use a couple things I wish I had to put a shift kit in it while it's down which I have now I'm going to put in but like I said turned out to be that you know extended turbo pin it wasn't engaging the 24 band so it would you have to let off the gas to get it to shift from second to third but I wish you well my friend good luck!

Would this also cause a late shift along with it shifting hard?

@Therey1898

2 жыл бұрын

Im wondering the same

@roadkillsf.f.cgarage386

2 жыл бұрын

Hard first to second shift not sure about late shift

@nickkane8690

7 ай бұрын

You ever figure out your problem? I’m struggling with a late shift out of first as well.

@ericchapman8956

7 ай бұрын

@nickkane8690 my problem was related to aftermarket parts i have. I have a carbureted engine so the bracket i used for the TPI was adjustable and out of adjustment so the TPI was giving bad data.

So I'm here because i ran my transmission with 2quarts low. It shifted great with no issues until i did a wot and it felt like it did a jerk so i checked fluod at that time and noticed it low 2 quarts. Immediately filled it up, now it has a stupid late semi harsh 1-2 shift. Everything else is perfect. Just the 1-2 shift. Is this my problem? It's a remanufactured transmission from GM. Did they still use plastic accumulator piston?

@howtofrank502

4 жыл бұрын

bishop being a newer transmission it should be relatively durable. If everything else is good, replace this accumulator and your 1-2/3-4 shift solenoids.

was a gasket required for install?

@james10739

3 жыл бұрын

I'd that's all you are doing maybe the one on the separator plate should be fine and I don't think there is even really gasket there but you might need a pan gasket and if you are there you should probably get a filter kit with a new pan gasket anyway

@imzackson

3 жыл бұрын

@@james10739 thanks I was just wondering because I saw one one the internet I know about the pan my shop refuses to work on transmission we just send them away but it's one of my personal trucks

Facebook page link is broken/doesn't work

@howtofrank502

3 жыл бұрын

Andy Likhonin thanks for letting me know! Please try the link again, here it is below: facebook.com/FranksFixandFlip/

@andylikhonin8088

3 жыл бұрын

@@howtofrank502 no problem! It works now :)

If dont score the bearing on video why should we do it in real life

So I bought the pinless piston from sonnax and a new 1-2 accumulator from gm on Amazon (yes it has a gm genuine sticker) just incase theres any damge to the housing and when I pushed the plastic piston out there was only the small spring inside. It said it was for my 03 yukon xl denali. Did I get screwed or do some applications only use one spring?

@zemanzee8949

2 жыл бұрын

iput in the sonax spring, much firmer, just 1

Where can I order that part?

@howtofrank502

4 жыл бұрын

Stephen christopher EBay or amazon, just search Sonnax pinless accumulator 4l60e

@betosgarage

4 жыл бұрын

FranksFixAndFlip hey bro not sure what year my 4l60e came out of bought it from OfferUp to mate it with my gen 3 5.3 . The Amazon’s it eBay accumulator should fit forsure right?

@howtofrank502

4 жыл бұрын

Beto’s Garage Yes. 4l60E is the same overall, but if you want a nice upgrade get a 4l65!

@stevelafrance32

4 жыл бұрын

@@howtofrank502 I have heard you can't tell the difference by the outside of the case is this true? My truck is a 2011 silverado 4.8 4 speed I'm guessing they are all 4l60e

@howtofrank502

4 жыл бұрын

Stephen christopher It is pretty much true, only difference really would be the way it fits against the engine. If you are putting a 4.8 4l60e on a 4.3 engine you may need a adapter plate. Other than that they transmission were virtually the same, slight upgrades over the years.

Mine only shift hard sometimes not all times??

@howtofrank502

4 жыл бұрын

What is your mileage? It could be your B shift solenoid failing, but this part is most notorious to fail in the 4L60E

@clintpeterson9028

4 жыл бұрын

One hundred Sixteen miles

@clintpeterson9028

4 жыл бұрын

Mine is v8 Colorado

@clintpeterson9028

4 жыл бұрын

I think mine is 4l60e

@howtofrank502

4 жыл бұрын

I would bet it’s the accumulator. Mine had close to the same mileage when it showed symptoms of failure

Threading the hole for a set screw would be much better

@howtofrank502

3 жыл бұрын

Absolutely! I just followed the manufacturers recommended process. Thanks for your comment

just asking.... can you tap that hole instead of using that ball? either way, the hole is ruined. a screw seems like a better solution. thanks for the share! larry

@howtofrank502

3 жыл бұрын

I don’t see an issue with that. Wasn’t worth the effort for me as it is overall low pressure, but if you have the tools handy go for it! Thanks for watching.

@budthechud3408

2 жыл бұрын

Yeah! tap it and perhaps use a grub screw?

I double stack these with two factory pistons and 30 thousand shim, works better

@UpstateSCBass

3 жыл бұрын

This is the way!

@eroom2087

3 жыл бұрын

@@UpstateSCBass two factory aluminum piston and shim, better and cheaper

@craiggillard2808

3 жыл бұрын

Could y'all please elaborate? I'm currently in the process of trying to figure out what to do with my accumaltor.

@budthechud3408

2 жыл бұрын

How so?

@codydorman7405

2 жыл бұрын

I don't get how putting two Pistons in and making less volume works especially since my truck stopped shifting out of first and on the teardown the only thing I found was the 1-2 accumulator spring was broke did I miss something??

Part number

@howtofrank502

4 жыл бұрын

James Napier If you look in the description, the link is attached!

Love the video till you talk about cross hatching lol I just cant picture how that works lol

@howtofrank502

4 жыл бұрын

Justin Cody Lol just hammer a “X” into the metal on top of the ball, don’t over think it.

@justincody2079

4 жыл бұрын

@@howtofrank502 like on the ball or where you drop the ball into

@howtofrank502

4 жыл бұрын

Justin Cody Where you drop the ball into. You put the ball in the hole, press it flush (flat), then hammer a X into the metal housing the ball is inside of.

@howtofrank502

4 жыл бұрын

Justin Cody focus on the part where I draw my finger when explaining cross hatching. Do exactly as I drew and you will be in good shape. To make sure you did it right flip it over and try to force the ball out. If it doesn’t budge you’re good

@justincody2079

4 жыл бұрын

@@howtofrank502 lol ok we all have our moments 🤣🤦🏻‍♂️

What a waste 5 minutes with blah blah blah blah. SMH That’s how I sick of KZread people love running mouth instead do it show how removal and install quickly... u need remake video

@imzackson

3 жыл бұрын

People like you probably want them to come do it for you. Whine Whine Whine stop watching you tube and figure it out for your self next time!!