Hey Steven, I read a few of the comments and found one comment dissing you. FORGET THAT COMMENT BROTHER. There is always one guy making some claim of having 20yrs experience. Funny it is always the same exact and perfect number of 20yrs isn't it? Well Steven I have been working on cars since I was 15 on the Ranch, 66 yrs old now...we had to, no money for mechanics so we did everything ourselves. You did a fairly good job and can hold you head up HIGH, so don't listen to those pretenders. Let those comments run off Brother. I've managed to rebuild a few 4L60e in my day and still do a few. You presented a good video and it should help a lot of people. ONE THING TO KEEP IN MIND; Any builder that claims to know it all is one to stay away from. They have the attitude they know it all and that my friend keeps them from learning new technics and most importantly getting better. I still look for new techics and ways to do things differently. Even tho I claim to have mechaniced for all these years I still don't claim to know it all. I've got so many certificates there's no room to hang them on one wall of the shop...that sill doesn't make me better than anyone else. It just shows I took the instruction and passed their test. It takes more than passing a written test to be a good mechanic...remember that!!!!! Bottom line here; This is a good video and anyone claiming different has their own issues they need to work out. Anyone that really knows anything about rebuilding knows there is always a better way and any real mechanic worth his salt is always looking for that better way. It's funny the little things I've learned from novice mechanics that don't even shave yet. Don't let pride stand in the way of learning from anyone. The thing is this, You are the mechanic you are by the experiences and knowledge you pick up along the way. You learn from this source and that source and you blend them into YOUR routine. Ever notice not two good mechanics do everything the exact same way yet seem to get the same results? Good Video Steven.
The rear planetary assembly was probably damaged due to someone slamming the vehicle into drive and doing a burn-out. If there even is a proper way to do a burn-out, it should be done in manual low. Doing a burn-out in drive puts all of the pressure on the low/reverse clutch pack and gears. Sometimes it causes the center support to "buck" and pop the anti-clunk spring and large snap ring loose. However, doing a burn-out in manual low engages the forward drum and turns the entire drive train from the front shaft and rear shaft simultaneously instead of just the low/reverse, distributing the pressure.
My 2003 Chevy Avalanche no longer has any forward gears. I pulled up to a stop light, stopped, it kind of jerked a little when accelerated then nothing, would not move in any forward gears but does move fine in reverse. Some clanking noise when shifting and son e whining noises. Do I need a new transmission??? HELP ME!
The 4L60/65 should not be in big trucks!! I roasted my 4L65 AWD van 1500 4 times in my work van. There just not good for high loads or bigger trucks. All bigger trucks should be running the 4L80, the bigger transmission .
could you tell me what the measurements are on the spring compressors you made are. Im getting ready to do my first rebuild and want to make before hand
hey man i lost power to the transmission going about 75 mph then just lost transmission, now it has no reverse and no forward gears there is not sign that anything is moving inside the transmission whe i give it gas, there is no sounds or movement at all only the engine running smooth and reving up
Thanks for the reply... and no no clunky nothing I thought it was something electrical because it just quit it's like if I just shifted into neutral. I was told maybe pump went out
Gotta 1999 gmc suburban k 1500 4l60e trans, lost all forward gears but reverse is perfect and no whining noises or nothing, just stopped going forward. I changed the filter and brand new fluid about 2 months ago, it was running better then ever, changing gears no rough changes no nothing, no warning, gears was shifting perfect, I was driving normal all day on it, then all of a sudden no forward gears. I seen a video or 2 that said it could be just the check ball in the valve body stuck in the fluid hole that allows fluid into the forward gear slot.
This is not my area of expertise, however the transmissions that I have some experience with can't be put on a bench but require a fixture rated around 30 tons. The case alone would be around 1 and a half ton. The ease of disassembly of this 4L60-E is remarkable, I could tell toward the end as you were about to remove the rear clutches that the output shaft had a lot of slop. The planet assembly must have failed first resulting in uneven pressure on the roller bearing deforming the bearing races and allowing the rollers to fly 'into the works' This must have happened at high speed or the rollers would not have shattered and larger chunks of gearing would have broken loose. This is speculation in that I, of course, couldn't examine the parts directly, but your assumption is basically correct. That truck was rode hard and put away wet!
DAMN JUST HAD MINE DO SAME THING.. FELT A SNAP THEN NO FOWARD GEARS NOR 4WD.ONLY HAD REVERSE .. 2400$ REBUILD FUKK WISH I KNEW HOW TO FIX.. IM IN CALIFORNIA
Great video!! I'm 70, never had a vehicle in a shop. I'm rebuilding my first tranny, and am having a blast. Was wondering, what did the pump look like? Thanks.
Anytime you tear one down you should rebuild the pump if it is rebuildable,it may be but anytime you have a lot of metal from gear/bearing failure a lot of fine metal particles gets pumped through out the entire transmission and oil cooler too,which should be replaced also,if where the pump rotor and vanes turn inside the pump arent damaged with grooves and gouges,if running a finger or finger nail over it and can feel any thing other than smooth,its pump time,that one may be gone!
i have a 94 chev 4x4 it was sitting for a couple years I tried it last month and all gears went forward now I try it a month later now alli have is reverse the truck was parked for a couple of years but worked prior to storing it any ideas tks
i have a trailblazer 4x4 it has no gears forward or reverse and it makes a winding sound when i tried to put it in drive or reverse any ideas as to what that might be. coukd it jist be the torque converter slipped or failed.
I've grenaded several of these. It's from bang gears. Playing manual. Holding gears to long or dropping in gears to slow vehicle. It gets costly. Yet I still do it 😂
Rebuild a 4l60e didn't have no 3rd and 4th gear reassemble all together now I have no forward and slight reverse but could drive in 3(overdrive) you might be the issue
no engine light on i did the tcc valve with upgraded sonnax and new gaskets and seperator plate and new balls the 1-2 acc pistons all done but still now and gain you can feel it from 1-2?
hi i did the tcc with sonnax upgrade and acc pistons 2 new gaskets and seperator plate rest of valve body was fine but still has the 1-2 shift issue cant understand it?
The cause for that planetary gear getting eaten up like that is dumping it in first gear when moving at 30 to 40 mph.. The other way is starting out in first and driving the vehicle to the limit in that gear for too long. A loud bang will be heard then a tremendous jolt to the vehicle. Red lining it in first gear to much. I just busted up my transmission in my 2004 GTO doing the same thing and I have the same symptoms, no forward gears but reverse works fine. There was some hot dogging on that Tahoe. My 2004 GTO has the same transmission 4L60E. It is going to cost some money to fix it. I was being stupid because of the type of car it is. That would be abuse on the Tahoe.
The 60 and the 80 won't make the first gear downshift manual till 35 mph or under. 700r4 since 1987 4l80e 1991 have had 1 gear lockout protection added to the secondary VB. There is a mandotory shift into second if left in first manual low by accident after 35 mph. Driving hard or light makes no difference what kills these transmission hunting for gears 3rd to 4th, then 4th to 3rd, 4th to 2nd down shifts, and 3rd to 1first kick down shift. It cost money to go fast, how big is ur budget?
You must have some off the wall 4L60e with a manual valve body because Keith Irey is totally correct. There are safety guards built into nearly all GM trannys that help prevent the engine of any constant high RMPs in 1st gear. The trans will shift into 2nd all on it's own. EVEN if the selector is held into 1st gear location. So your claim of the trans staying in 1st like you say just doesn't hold water. They ONLY way your car would stay in 1st gear like you say is if it had a manual shift kit installed. However, there aren't too many kits out there but there are some guys that know how to bypass the shift solenoids with toggle switches. Since you didn't mention any switches your trans would shift into 2nd even with the selector in the 1st gear location.
This just happen to me last weekend.. there was traffic going around 15-20 mph.. cars wouldn’t let me change lane so I gave it gas and when it down shift I heard a pop and no more forward gears.. it wasn’t abuse and I didn’t floor it all the way when it happened..
That was a very informative and interesting teardown. I have a 4l60e that has driven me nuts with no shift to 2nd to 3rd period. All I have is 1st and 2nd gear. I can't figure out what is causing it? Thank you for your expertise. I appreciate it greatly! Jeff
I actually just had the exact same thing happen to my 4l60e in my 2006 YukonXl but I do have a performance tune from diablo on my truck and it also had 199000 miles on it. It lost all forward gears and only had reverse. Cant wait to get into my trans and c if this is what happened to my transmission great video I am 44 and have been working on cars since I was 14 myself keep up the good videos
maybe the owner took it to California Transmission? the same thing happened to the one i took there. lol they even left the magnet out. leaked from day one.
Great job. Thanks for show us your work on a 4L60E. Now i'm in a round with two torx bolt from the bell housing. I been using a Dremel tool in order to cut off the head of the bolts. It's very hard. I don't know what i will find inside into the case by now. Best regards.
my 97 tahoe 4x4 only drive dont n 3rd work n bt manualy i can gt it al to 100mph easy it b like 1 2den 3 n den into drive bt once i gt to a stop i need to shift it back to 1st wat cud be my problems also no codes have came out
After replacing the 4l60e transmission in xt cab chevy 04 there was a knocking sound I moves the truck back and forth and now only the flywheel and torque converter spins and the knocking went away???? Any thoughts on it and what might mess up
known fact, all GM reman 4l60e were built with cheap, china imported rear planets. Every GM reman 4l60E will have this failure. Also the 3-4 clutches you say were burnt.... they were fine. Your instructional video needs to get some facts straight and proper techniques. I've been doing this 20 years and you gave so much poor and inaccurate info......
Hey Steven, I read a few of the comments and found one comment dissing you. FORGET THAT COMMENT BROTHER. There is always one guy making some claim of having 20yrs experience. Funny it is always the same exact and perfect number of 20yrs isn't it?
Well Steven I have been working on cars since I was 15 on the Ranch, 66 yrs old now...we had to, no money for mechanics so we did everything ourselves. You did a fairly good job and can hold you head up HIGH, so don't listen to those pretenders. Let those comments run off Brother.
I've managed to rebuild a few 4L60e in my day and still do a few. You presented a good video and it should help a lot of people.
ONE THING TO KEEP IN MIND; Any builder that claims to know it all is one to stay away from. They have the attitude they know it all and that my friend keeps them from learning new technics and most importantly getting better.
I still look for new techics and ways to do things differently. Even tho I claim to have mechaniced for all these years I still don't claim to know it all. I've got so many certificates there's no room to hang them on one wall of the shop...that sill doesn't make me better than anyone else. It just shows I took the instruction and passed their test. It takes more than passing a written test to be a good mechanic...remember that!!!!!
Bottom line here; This is a good video and anyone claiming different has their own issues they need to work out.
Anyone that really knows anything about rebuilding knows there is always a better way and any real mechanic worth his salt is always looking for that better way. It's funny the little things I've learned from novice mechanics that don't even shave yet. Don't let pride stand in the way of learning from anyone. The thing is this, You are the mechanic you are by the experiences and knowledge you pick up along the way. You learn from this source and that source and you blend them into YOUR routine. Ever notice not two good mechanics do everything the exact same way yet seem to get the same results?
Good Video Steven.
The rear planetary assembly was probably damaged due to someone slamming the vehicle into drive and doing a burn-out. If there even is a proper way to do a burn-out, it should be done in manual low. Doing a burn-out in drive puts all of the pressure on the low/reverse clutch pack and gears. Sometimes it causes the center support to "buck" and pop the anti-clunk spring and large snap ring loose. However, doing a burn-out in manual low engages the forward drum and turns the entire drive train from the front shaft and rear shaft simultaneously instead of just the low/reverse, distributing the pressure.
Great knowledge. Thank you
My 2003 Chevy Avalanche no longer has any forward gears. I pulled up to a stop light, stopped, it kind of jerked a little when accelerated then nothing, would not move in any forward gears but does move fine in reverse. Some clanking noise when shifting and son e whining noises. Do I need a new transmission??? HELP ME!
Yes, it sounds like the forward planetary gear exploded
Yea get another transmission
Could be the sun shell/gear. Those sheer off pretty easily. You can buy an upgraded one from Monster or Transstar
Just bc it dont go forward doesnt mean you need a completely new unit. Could be a number of things. I suggest tearing it down and looking inside.
Skip the drill out of the bell housing bolts and use the proper T Bit. Video states T50 it's actually a T50+ available through sonnax.
racing vehicle
going into drive while still rolling backwards
Great video man. Very informative. Use what you got. It still gets you there.
The 4L60/65 should not be in big trucks!! I roasted my 4L65 AWD van 1500 4 times in my work van. There just not good for high loads or bigger trucks. All bigger trucks should be running the 4L80, the bigger transmission .
4L80 or a heavy duty built 4l60e
@@rockroll9513 I bought a truck with a trans issue, When I have the trans out it's getting every upgrade I can throw at it.
Be really careful prying on the aluminum pump and body! Get a pump puller. Remove the 2-4 servo to get the band off/on!
Use the output shaft to push out all those parts after removing the retaining clip on the end of the output shaft
NEVER EVER use impact gun on the valve body bolts or pump bolts!
Buy a Lisle 44900, 8" Lock Ring Pliers from eBay for those snap rings
pull the servo and band will be loose.
could you tell me what the measurements are on the spring compressors you made are. Im getting ready to do my first rebuild and want to make before hand
looks like abuse to me....you are the only one I have seen with that kind of damage. Reveing up the engine and drop it into drive at high rpm's
HI,I believe they call em` "neutral bombs"
Watch Richard @ Precision Transmission tear one of these down. Will help you a ton.
3/4 clutches were fried because of the stuck ball in the separator plate. Also need to check the capsule check-valve in the case for 3/4.
hey man i lost power to the transmission going about 75 mph then just lost transmission, now it has no reverse and no forward gears there is not sign that anything is moving inside the transmission whe i give it gas, there is no sounds or movement at all only the engine running smooth and reving up
Did you gwt this figured out my yukon did the exact same thing
Hugo Navarrete any clucking noises?
Thanks for the reply... and no no clunky nothing I thought it was something electrical because it just quit it's like if I just shifted into neutral. I was told maybe pump went out
Hugo Navarrete was just going to say that, i lost all gears in my 4l60e and found the front pump to be cracking in half.
Backing up and jamming it in gear to spin the tires.
Gotta 1999 gmc suburban k 1500 4l60e trans, lost all forward gears but reverse is perfect and no whining noises or nothing, just stopped going forward. I changed the filter and brand new fluid about 2 months ago, it was running better then ever, changing gears no rough changes no nothing, no warning, gears was shifting perfect, I was driving normal all day on it, then all of a sudden no forward gears.
I seen a video or 2 that said it could be just the check ball in the valve body stuck in the fluid hole that allows fluid into the forward gear slot.
Did u ever find out what it was mine did the same thing
This is not my area of expertise, however the transmissions that I have some experience with can't be put on a bench but require a fixture rated around 30 tons. The case alone would be around 1 and a half ton. The ease of disassembly of this 4L60-E is remarkable, I could tell toward the end as you were about to remove the rear clutches that the output shaft had a lot of slop. The planet assembly must have failed first resulting in uneven pressure on the roller bearing deforming the bearing races and allowing the rollers to fly 'into the works' This must have happened at high speed or the rollers would not have shattered and larger chunks of gearing would have broken loose. This is speculation in that I, of course, couldn't examine the parts directly, but your assumption is basically correct. That truck was rode hard and put away wet!
DAMN JUST HAD MINE DO SAME THING.. FELT A SNAP THEN NO FOWARD GEARS NOR 4WD.ONLY HAD REVERSE .. 2400$ REBUILD FUKK WISH I KNEW HOW TO FIX.. IM IN CALIFORNIA
had a 2004 z71 just pop just going down the road the neck on the sun gears sheared the same way.
I have a 2003 4l60e it shifts fine but no lock up, p0894 code present. It has sonnax tcc valve upgrade. Pwm solenoid ohm are 10.3 any suggestions ?
Pwm should be 10-15ohm, the valve could be leaking or bad t.c or internal leak
Great video!! I'm 70, never had a vehicle in a shop. I'm rebuilding my first tranny, and am having a blast. Was wondering, what did the pump look like? Thanks.
Anytime you tear one down you should rebuild the pump if it is rebuildable,it may be but anytime you have a lot of metal from gear/bearing failure a lot of fine metal particles gets pumped through out the entire transmission and oil cooler too,which should be replaced also,if where the pump rotor and vanes turn inside the pump arent damaged with grooves and gouges,if running a finger or finger nail over it and can feel any thing other than smooth,its pump time,that one may be gone!
My 99 Tahoe did the same but it has about 300,000 on it so maybe it was just time
i have a 94 chev 4x4 it was sitting for a couple years I tried it last month and all gears went forward now I try it a month later now alli have is reverse the truck was parked for a couple of years but worked prior to storing it any ideas tks
Let it fully warm up very hot. Could be a sticking valve , or a leaking seal. Keep running it through all gears as it warms up. 30 plus minutes.
Steel temites absolutely chewed apart. Don
i have a trailblazer 4x4 it has no gears forward or reverse and it makes a winding sound when i tried to put it in drive or reverse any ideas as to what that might be. coukd it jist be the torque converter slipped or failed.
fordmuddin20 no fluid. check your transmission fluid level
Broken Sun shell or blown rear planet maybe both..
Hi can a ford 2001 4r100 2 wheel drive use a 4buy 4 trans. if so what would have to be changed
Hi, check out an exploded view diagram for both output shafts, you may find your answers there. Let me know.
You can do it just have to change the output shaft, which requires tearing the unit completely down
I've grenaded several of these. It's from bang gears. Playing manual. Holding gears to long or dropping in gears to slow vehicle. It gets costly. Yet I still do it 😂
What kind of drill are you using?
What are the symptoms of a bad pump?
No forward or reverse
Depends upon the severity of " bad "
Low pressure & other things can cause slipping .
No pressure , no move .
Start it, check fluid, if it's high above the full mark pumps not pumping...
Loan out truck lol yea might be a bit to much beer involved here
He was hot riding it you right
Looks like a reverse to low blowup
I was thinking the same thing,probably reverse to Drive!
Rebuild a 4l60e didn't have no 3rd and 4th gear reassemble all together now I have no forward and slight reverse but could drive in 3(overdrive) you might be the issue
Did you replace the 3/4 and overrun pistons?
hi got 4l60e from a 95 cadillac it has only 70,000 miles it shifts slightly hard from 1-2 any suggestions ?
Hi, look in to the TCC regulator valve. you have a check engine light on? if you do, do you get a code 1870? Let me know. I am learning as well.
no engine light on i did the tcc valve with upgraded sonnax and new gaskets and seperator plate and new balls the 1-2 acc pistons all done but still now and gain you can feel it from 1-2?
Possible TCC regulator valve bore in the valve body worn out or starting to wear. any engine codes?
hi i did the tcc with sonnax upgrade and acc pistons 2 new gaskets and seperator plate rest of valve body was fine but still has the 1-2 shift issue cant understand it?
Transgo shift kit (SK4L60E), its a must for the 4L60E. Also check the separator plate, make sure no check balls are stuck in it, or have pounded thru.
This is to painful to watch
I've been spoiled watching Richard @ Precision Transmission tear down at least 3 of these a week.
@@gailtaylor1636 Richard and Trent are great. transmission shops could take some lessons from them.
3/4 pack is smoked
The cause for that planetary gear getting eaten up like that is dumping it in first gear when moving at 30 to 40 mph.. The other way is starting out in first and driving the vehicle to the limit in that gear for too long. A loud bang will be heard then a tremendous jolt to the vehicle. Red lining it in first gear to much. I just busted up my transmission in my 2004 GTO doing the same thing and I have the same symptoms, no forward gears but reverse works fine. There was some hot dogging on that Tahoe. My 2004 GTO has the same transmission 4L60E. It is going to cost some money to fix it. I was being stupid because of the type of car it is. That would be abuse on the Tahoe.
Darkkaar burn outs do it to
The 60 and the 80 won't make the first gear downshift manual till 35 mph or under. 700r4 since 1987 4l80e 1991 have had 1 gear lockout protection added to the secondary VB. There is a mandotory shift into second if left in first manual low by accident after 35 mph. Driving hard or light makes no difference what kills these transmission hunting for gears 3rd to 4th, then 4th to 3rd, 4th to 2nd down shifts, and 3rd to 1first kick down shift. It cost money to go fast, how big is ur budget?
You must have some off the wall 4L60e with a manual valve body because Keith Irey is totally correct. There are safety guards built into nearly all GM trannys that help prevent the engine of any constant high RMPs in 1st gear. The trans will shift into 2nd all on it's own. EVEN if the selector is held into 1st gear location. So your claim of the trans staying in 1st like you say just doesn't hold water.
They ONLY way your car would stay in 1st gear like you say is if it had a manual shift kit installed. However, there aren't too many kits out there but there are some guys that know how to bypass the shift solenoids with toggle switches. Since you didn't mention any switches your trans would shift into 2nd even with the selector in the 1st gear location.
This just happen to me last weekend.. there was traffic going around 15-20 mph.. cars wouldn’t let me change lane so I gave it gas and when it down shift I heard a pop and no more forward gears.. it wasn’t abuse and I didn’t floor it all the way when it happened..
That was a very informative and interesting teardown. I have a 4l60e that has driven me nuts with no shift to 2nd to 3rd period. All I have is 1st and 2nd gear. I can't figure out what is causing it? Thank you for your expertise. I appreciate it greatly! Jeff
Good 👍🏼👍🏼👍🏼
Clueless
I actually just had the exact same thing happen to my 4l60e in my 2006 YukonXl but I do have a performance tune from diablo on my truck and it also had 199000 miles on it. It lost all forward gears and only had reverse. Cant wait to get into my trans and c if this is what happened to my transmission great video I am 44 and have been working on cars since I was 14 myself keep up the good videos
maybe the owner took it to California Transmission? the same thing happened to the one i took there. lol they even left the magnet out. leaked from day one.
Are you trying to make people sea sick watching this?
Great job. Thanks for show us your work on a 4L60E. Now i'm in a round with two torx bolt from the bell housing. I been using a Dremel tool in order to cut off the head of the bolts. It's very hard. I don't know what i will find inside into the case by now. Best regards.
my 97 tahoe 4x4 only drive dont n 3rd work n bt manualy i can gt it al to 100mph easy it b like 1 2den 3 n den into drive bt once i gt to a stop i need to shift it back to 1st wat cud be my problems also no codes have came out
Ricardo Juarez your forward clutches are burnt. you need to rebuild it.
My guess without watching is a busted Sun shell...
After replacing the 4l60e transmission in xt cab chevy 04 there was a knocking sound I moves the truck back and forth and now only the flywheel and torque converter spins and the knocking went away???? Any thoughts on it and what might mess up
You forgot to install the anti knock clip in or installed it wrong
Excellent video, well done, very informative.
If you're going to be a "rebuilder" spend the bucks for good tools!
Thank you captain fucking obvious.
Great video love it
Got stuck 1rst to reverse hard and fast
known fact, all GM reman 4l60e were built with cheap, china imported rear planets. Every GM reman 4l60E will have this failure. Also the 3-4 clutches you say were burnt.... they were fine. Your instructional video needs to get some facts straight and proper techniques. I've been doing this 20 years and you gave so much poor and inaccurate info......
Rear planets are fine, not enuf lubrication is why they usually fail.
I've been an ASE certified Tech for 28 years and if your shit doesn't stink then make your own video.
@@recrdholdr what are your thoughts on the rear planetary? Lubrication problem or are they putting Chinese junk in?
@@rockroll9513 beating on Chinese junk gears!
West Virginia Sun Gear in it....missing every 3rd tooth