This is such an underated series hands down the best 4l60e series on KZfaq if you cant rebuild your 4l60e with this series then you dont need to even be changing your own oil

I just rebuilt my 2007 Chevrolet 4L60E following Jimmy's tutorials and it works again! Fantastic video series and presentation. Never thought I'd attempt this procedure but he made it easy as well as ordering the parts I needed. Highly recommended, thanks Jimmy!

Having worked on over 200 Honda automatic transmissions, you ALWAYS pull every valve and spring out of the bodies, clean everything thoroughly and inspect the valve passages for scratches, burrs, etc. There are ALWAYS little pieces of metal floating around in the valve body of a transmission that has had to be rebuilt. Having said that, this is unquestionably the best 4L60E rebuild video on the internet...

I really enjoyed all 10 classes. Very interesting and excellent teaching.

This is the best repair series video on KZfaq! Excellent production, clear talk, good lighting and giving people the details they need to know. THANK YOU!!!!!!!!

260,000 views.... Probably about 100 people rebuilding their transmission. I know I've watched this 5x and plan to donate when I'm done. Excellent quality and clarity.

Thank you sir, you saved me the headache of misplacing something. I just got done installing the rebuilt transmission I did (4L60E) in a 2002 Chevy Astro, shifts great and goes in reverse and no more slipping gears.

All I can say Is wow and thank you very much for this.

This has to be one of "THE BEST" automotive video series on KZfaq. Thank you very much for taking the time and effort to make such a great tutorial. Your expertise and patient delivery make this complex subject matter very understandable and enjoyable. Well done Sir!

17:35 NEVER turn a reamer backwards!! Continue turning it right while pulling it out. If you turn it left it can leave a ridge in the bore, and break the cutting edge of the reamer.

Perfect! Exactly what I needed to learn before opening my 4l60E out of my 2001 Camaro. However, I chose to go with option 3 TCC Valve with O-rings made by fitzall part number A74741QA. They say It too fixes trouble code P1870. I will change this out today along with the Sonax Boost Valve.

Thank You 1000 times for these videos!!!!

Thank you for doing this video. I just completed my rebuild for my old suburban a couple days ago and it seems to be working perfectly. Now on to the b7ta for the Honda. I wish there was a video that covers that one with as much detail as this one but nowI am much more motivated for that rebuild than before.

I'm impressed about the works

Absolutely the best class on KZfaq!!! But I messed up somewhere I followed this whole class and watched it 5x before I even started installed my trans today and still no 3rd gear. I can't help but feel I did something wrong even making it a point to take my extra time and do exactly what he did.

Gracias por compartir recientemente compre una Suburban y trae la 4L60E tenia una falla la primera la hacia muy cargo el cambio sin embargo resulto ser el sensor de posición del acelerador je je je pero tengo pendiente hacer la afinación de la transmisión saludos desde MÉXICO!!!!

@20:45, you should NOT have to force the sleeve into the bore like that. Precision machined parts should slide together with close to .0005" clearance. Forcing it in the bore is probably because of turning the creamer backwards on the way back out with it.

I really like the way you explain this thank very much

I have watched your entire 4l60e series parts 1 & 2 and it is amazing. My 2002 trans am w/65k miles had no second gear, it wouldn't shift out of 1st until about 15-20mph followed by letting off the gas completely, then it would shift directly to 3rd. the same was true for downshifting it would bypass 2nd when slowing down. If I floored it from a stand still, it wouldn't shift out of first, it would just bounce off rev limiter and never upshift until I let off the gas. I researched everything that could cause no second gear. I have disassembled the entire trans, there was no metal shavings in the pan, none of the check balls/check ball holes were worn or misplaced, the clutch packs all look good and not worn, the sun shell is great condition with no visible wear on teeth, the band wasn't broke and had good material still left on it, and the seals on the servo looked good when removing them, there were no broken springs in the valve body. I followed the part 2 lesson 9 to the point where you said to clean it in mineral spirits and that most of the time further disassembly isn't needed and to check all valves and make sure they move freely, upon doing this I found one that wasn't taken apart in the video which wouldn't move freely. The little "piston head" on the valve right next to the 3-2 solenoid was very stiff and when I pushed it in, it stuck there. It took me about 10 min to get it out and there was a yellow & purple spring behind it, it looked good and wasn't broken, I also took out the next piece and it looked fine as well, I couldn't see any dirt or obstructions. I tried to reinstall them and the same thing happened, the piston head would get stuck in valve body and wouldn't pop back out(it was very hard to install too, it would barely fit in bore). I lightly sanded the small piston head and the first 1/2" of bore with 2000 grit sandpaper. After doing this and trying to reinstall it seemed to fit a little easier, so I repeated this process about 5 times until it moved freely in bore and spring tension would pop it back out after being pushed in. I reinstalled the retaining clip and now it pops in and out smoothly about an 1/8th-1/4" inch like the other two valves next to it. Was this the cause of my no second gear????

Great video thank you

Thank you for your knowledge good sir.

Somebody else posted this but it is worth posting again there is a kit for 2000-2004. Fitzall Part number A74741QA It does not work for the later years where they added an internal speed sensor. I like this approach better because it's a permanent fix.

Great video!!!

What is the brand of this rebuild part kits? I really like how each specific bag is labeled and EVERYTHING for the entire transmission is included!

The partial TC apply strategy is hard on the converter clutch and should be eliminated by locking the valve down in the VB. On or Off will work better than partial apply.

It wasn't in my Transtar kit. And the trans guy said to use the inner spring from the pump cam springs.

Gracias maestro

Best repair video

I have a 2000 z - 71 with a bad trans I was givin a 2SHD and a DCNF2420 torque converter. I was wondering if I swap the bell-housing and extention housing will it last until I get a full kit from you in a few months

Hi, does the valve where the reamer regulator tool you were using move as far as the silver retaining clip? All of my springs are in good shape when checked with the pick and taking apart. I have taking the regulator pieces out and the spring still looks in tack.

You have the best videos for the 4l60e. At 37:33 in this video you show how to use the reamer and install the Sonnax kit, would you need the additional reamer for a 2000 valve body? Thanks

Hi , there is no closed caption on part 2 lesson 9 im deaf i love to watch your video common

WOOD LIKE YO SEE A VIDEO O A 2001 FORD F-150 4r-100, thanks

So this new valve spring makes the code go away and fixes the slippage? I got the P1870 on my 96 gmc jimmy and when it tries to go into 3rd it just slips and acts like its in neutral and it revs up. I have to keep it in manual 2nd so it wont try to go into 3rd. cant get into 3rd so im not sure if it can get into 4th or not

❤😊

Hey I need help I have 4l65e transmission has changed also changed the clutch 1/2/3/4 Manfall Presser solenoid TCC clutch problem 3/4 not working. But the 1-2 reverse works well.

🙏🙏🙏👍

Great videos!!! I'm having problems with my transmission... I have the same...4L60-E year 1995..I'm from México...and its amazing but we don't have the rebuilding kits that you have there...and maybe the mechanicals...I take the transmission to the shop...two weeks ago... And its failing....fail..number one: hard shift 1-2, second fail: no third gear... I don't know what to do...

After installing the tcc valve does the clip go onto the valve or does the plug go in on top of the valve and clip goes on the plug I can’t really tell I’m using the Sonnax tcc valve

If I leave all but the foward/reverse check ball's out, will my trans shift better (firmer)?

I installed an aluminum plug in my TCC regulator to eliminate the PWM function. When you block off the TCC regulator does this result in full converter lock up any time that a partial converter lock up was commanded previously? My rebuilt transmission works great and the truck drives fine but the RPM are much lower than they were before in lower gears.

Hey Jimmy these vids are awesome.... How do you know if the valve body is not already worn too much? Is there a vacuum test procedure for these valve bodies?

Great series. Rebuilt my transmission with these videos. I don't have have drive but I have reverse, 1rst and 2nd gear. Any idea what I missed?

What would cause a 1998 truck to stall out when placed in a gear or coming to a stop. Checked tcc pwm solenoid and checks out to 11.3 ohms. Only does it with fluid in trans when I drained the fluid to where it barely reads on stick it doesn’t do the problem. It’s a 2wd 4l60e Silverado

Great vid!!. Is it possible to work on the valve body as you have shown here without dropping the trans or will it be to difficult to reinstall the valve body to the trans while still mounted in the car? I am pretty sure I have the dreaded TCC Regulator Valve Spring issue. Your thoughts are appreciated

You forgot to put on that roller bearing that bolts to the valve body that rest on the selector detent....

I have a 4T40e front wheel drive transmission. Do you have any video or parts for said transmission?

I have a 4l60e 1995 mounted on a 1994 camaro and therefore I don't have the connection of pwm tcc to the ecm and I don't have first gear I only have a second third and I'm not sure if I also have the fourth I would like to know what to do I hate removing the cover and maintaining and changing selenoids for new ones and not solving the problem of not having first gear help me Is it possible to put the valve body from 1994 to the 1995 transmission?

for the tcc regulator valve "spring fix" can i just use the longer spring or do i need to buy the expensive sonnax kit and reamer.The transmission is a 04 4l60e

Solution 2 restores it but for how long? Will the fix also wear?

I've never seen check balls installed on top of the separator plate?

What overhaul kit are you using?

i rebuilt my 2000 chevy pickup 4l60e transmission with your video. it worked for about 3 months, 3-4 burned up so im doing it again. everything looked good except the 3-4. in trying to find out what went wrong i rememberd i used a donor valve body from a 98. research tells me its different, could that be my problem? because if not i dont no where to look next everything else seems to check out

Can you explain the advantages of the PWM style lock up converter VS the non PWM lock up converter? Awesome series BTW. Makes me want to get a bad trans, and do a rebuild just for the experience! The one in my 04 Tahoe has 236k on it! I'm the second owner, and the PO said they did nothing to the truck except for a water pump, wheel bearings, brakes, and replaced the 4x4 switch on the dash.

i have a p1860 code an it slow shifting into 3rd any help !!???

Wat does it mean if I put it in gear either 1st or drive n the rpm goes up to almost 2k before the truck starts to move, but wen u put it in 2nd gear it goes as little better then 1st gear

Can I drive the 2003 with no lockup in tow haul mode without causing any damage to my trans? It rarely has tcc lockup so I’ve been leaving it in tow haul at highway speed to eliminate the tcc command and p0894 code

So this is basically a shift correction kit?

Great video, yet how much clearance should you have when 2nd drum n reverse drum should have when wiggeld all t way down to the sungear?

Why didnt gm update there valve body with a repairable tcc sleeve? Anyways I purchased a AC Delco Remand Valve body when I purchased my master overhaul kit. Do you think AC delco addressed the TCC valve when they remand the vb? BTW your video is great I purchased a video three years ago from box wrench for 30$ that wasnt even near as detailed as yours . Thank you.

after removing the tcc regulator valve, it is completely different than the one in the video. It is a one piece valve with a much larger spring, the valve came out first followed by the spring. it was under constant tension and popped out the end plug after i removed the clip. One end of the valve has a 1/4' deep hole and the other is flat. This is a different trans than the one in previous comments on this lesson, it is a 1998. This trans was also previously worked on and i dont know exactly what was done. I have 2 questions- first, is this an alternative to the spring kit shown in video? and unfortunately i was thrown off when removing it and dont know which way the vale needs to be reinstalled, any idea? Also, there was a check ball between the end of 2-3 shift valve and shift solenoid B and there was a tiny indentation on the end of the valve where ball was sitting. Is this something you've heard of before?

Is the same transmission for chevy blazer 98 please any body know???

If anybody has the answer to this, I'd be really grateful... Does the 1997 Chevrolet Astro have the EC3 partial converter clutch apply strategy?

I don't see where he addresses one of the most critical areas of the valve body. AFL Valve circuit. Nearly always worn. Couple different repair options.

For the TCC Regulator Valve "spring fix", it's only for 1995 and up models. What about a 1994? Is this problem even exist in this model?

Hellp plz i wanna ask you what happen if the eps screen too much dirty and not cleaned?

How do I get that spring replacement

Un vídeo en esa expresión en Español

What is the difference about sonnax valves 77754-03K and 77754-04K they looks same?

Hi. i'm deaf. there is no close caption i need to follow your instructions so please put close caption .thank you

I took my tranny apart, and I found that my drive clutches were burnt clean. Is there a reason for that?

Can I have e-mail contact address if it’s your good will? Whether you give me or not I thank you because you left me with unexpected big knowledge. God bless you, brother!

Why would you ream the bore completely neglecting actual instructions supplied with the tool? Never turn reamer backwards, never use wrenches on a reamer, never ream dry surface (use cutting/tapping liquids). This is an expensive tool, better treat it right!

Not worth a crap without Caption.