Transmission diagram ?

[67Imp.Wagon]

Anybody know of any online sites that show exploded veiws of transmissions?(late model 4L60 to be exact).Needing to see the breakdown of the valvebody and all parts before doing any disassenbly.The manuals I have don't cover this. Any help would be appreciated.

[flt-blk]

Phil, what did you do??
TZ

[67Imp.Wagon]

Tyler, I have to put a shift correction kit on the van.Valvebody gets worn where the boost valve goes. Its a common problem with these that GM won't admit to there being a problem.I've heard its not too hard but its unchartered waters for me so I like to do my homework before I get started. I gotta do it soon or I'll have real problems.

[SimonSez]

Is this one detailed enough ?

http://www.aceomatic.com/catalog/automatics/illustration.asp?t=11

[67Imp.Wagon]

Thanks Simom Sez. Thats a more than what I've got at this point.

[CharlieLed]

I have a video tape and a manual on this trans that shows you how to rebuild it in very detailed steps. Let me know if there is anymore info you need...

[Crosley]

the boost valve is not in the valve body on a 4L60 or 4L60E tranny.

it's in the pump

[67Imp.Wagon]

Charlie Led, Who makes the manual you have. Maybe I can order one online.

[67Imp.Wagon]

Yeah Crosley I know its in the pump but the kit I got provides new springs for 1-2 accumulator valve,regulator valve and 3-4 acumulator valve. I just figure I should follow all directions and stick to the recomended plan provided since I hav'nt done this before.


Flt-Blk, I will probably be doing this sometime this weekend if you want to swing by.Give me a call and I'll let you know when .

[CharlieLed]

Automatic Transmission Service Group (ATSG), 1-800-245-7722 or www.transonline.com (http://www.transonline.com)

I bought mine on ebay....

[Crosley]

Hopefully you bought a TransGo kit.

since you used the term "shift correction" it sounds like you bought something besides TransGo

[67Imp.Wagon]

Crosley, I bought the Superior 4L60E-V kit.Did'nt find out about the TransGo till after purchase. I had been told the Sonnax was the way to go but then found out about the Superior .I talk to several people that used it and are not having any problems with it and liked the kit.

My nephew did Trans work for years and still wrenches and he likes the Sonnax. He was'nt sure about the Superior and had never used it.

If it does'nt work I'll just have to put it in the book as a lesson learned.

[flt-blk]

Give me a call if you need a hand. Never worked on an
Automatic before, but what the hell it can't bee too hard.
TZ

[Crosley]

Well, the 4L60E is waaaay different animal from the 4L60 in the valve body.

You dont mention the problems you are hoping to correct with this kit. Besides the usual accumilator bore scuffing these trannys have, the "E" has wear issues in the valve bores and the boost valve as you mentioned. In the boost valve DO NOT enlarge the small equalizing hole in the boost valve sleeve. A larger hole will cause flutering of the pump slide inside the pump which leads to increased wear and pressure fluctuations.

What ever you do , do not open holes up in the separator plate larger than the instructions tell you. The 4L60E reacts very differently to modifications in the VB than the non "E" tranny.

Depending on the year of the trany/vehicle you have there is a PWM lock up system to deal with and also "torque management" in the PCM that will affect things too.

Chances are the separator plate will have a worn hole in the 1-2 check ball area, mayb worn through.

If you are having a 2-3 engine RPM flair shift, the kit will not fix it. It may cover it up slightly , but will not correct it.

[67Imp.Wagon]

Crosley thanks for the tips. My Transmission is an E. I had tried to edit my original post earlier but too much time had passed.

My problem is I'm getting the 1870 code which I'm told that it will not allow my torque converter to lockup. I get the harsh 1-2 shift after being on the highway.

The scuffing in the accumulator I've been told needs to be resleeved with a steel insert.My kit does not have this so I'm thinking my problem may not be solved.

I talked with several people on another board that swore this kit fixed the same problem and Superior also recommended it. They also said I would notice a bit of differnce at low speed due to the convertor staying locked a little longer . All had to do with a step in the instructions dealing with the PWM lockup you were refering to.

They provide the bits for enlarging the holes in the seperator plate but said they may not need enlarging.

A guy that had installed this kit in his said he did'nt have to do this step on his.

Once again thanks for the tips and I'll let you know how things go.Worse comes to worse I'll pull it back out and have the steel sleave inserted and put the Sonnax kit in, or I'll check into the TransGo kit as you had suggested.

[Crosley]

the Superior kit will solve the P1870 code. They do it slightly different from TransGo.

P1870 is a slipping code for the lockup which means the converter clutch is slipping more than the set parameters in the PCM allow for.

This is the PWM system I was speaking of.. Pulse Width Modualted converter clutch apply. THe boost valve does not cause this problem. It is all in the valve body PWM system.

if you get into trouble I have several of the TransGo PWM updated springs and valves for the 4L60E if needed

As I recall the superior kit does not have gaskets for the vb ?

Since I build 400-425 4L60 & E's a year , we have a few extra SK parts around

Watch out for all of the check balls to fall out of the vb when you drop it from the tranny.

[67Imp.Wagon]

Thanks Crosley.
I picked up the gaskets also when I bought the kit.
I was worried about ball placement when they fall out but my instruction sheet is pretty clear on where they go. My nephew has also already warned me about the parts under spring tension that will fly across the room if it does'nt hit you in the eye first.

I feel better now that you've said it should fix my problem.

[peashooter]

4L60E valve body and case check ball placement Help.
I'm sure I remove Five Balls from that Tranny And I would like some help finding where they go. The ATSG Manual shows, for the valve body one x and three dark balls and the case shows two x's and three
dark balls. Oh it's a 1993 4WD gmc. I've got more balls the x's.
I never had this kind of trouble with Peterson Manuals.

[DoubleUc]

If you are using the Snap-On Modus to find your 1870 code...well its a general slip code and doesn't mean anything other than its detecting a slip somewhere...you really aren't going to know anything until you get inside...I have seen an 1870 be the direct drum failure which really means a total rebuild...and if you do go after the pump, you might as well get an ohaul on the trans...the best way I described it to customers is..."its like doing surgery and only fixing one of several problems"...if you are pulling the pump the trans is out...just do it. There are ALOT of upgrades for the 4L60E trans that are worth doing, reaction shell is prone to break..etc. Sonnax is the way to go with the alot and Gils (Transgo)...you can't go wrong! Transtar has a great master ohaul kit too along with "the Beast" reaction shell...too parts many to list but I can give you all part numbers for a complete ohaul if you like!

[DoubleUc]

OK...peashooter...I'm about helping so forget about the thread pickup and lets see if we can do that...
You want to know where the VB check balls go, right? What year is the (4L60E)trans? Have you put a shift kit in it? What kind is it if you have?

[peashooter]

If you are using the Snap-On Modus to find your 1870 code...well its a general slip code and doesn't mean anything other than its detecting a slip somewhere...you really aren't going to know anything until you get inside...I have seen an 1870 be the direct drum failure which really means a total rebuild...and if you do go after the pump, you might as well get an ohaul on the trans...the best way I described it to customers is..."its like doing surgery and only fixing one of several problems"...if you are pulling the pump the trans is out...just do it. There are ALOT of upgrades for the 4L60E trans that are worth doing, reaction shell is prone to break..etc. Sonnax is the way to go with the alot and Gils (Transgo)...you can't go wrong! Transtar has a great master ohaul kit too along with "the Beast" reaction shell...too parts many to list but I can give you all part numbers for a complete ohaul if you like!
Thanks for the reply but I found my trouble. Ebayer sent the wrong manual. It's not for the 4l60e it's for the 4L60 and thats not to much help when your trying to put back the check balls. ATSG sent me what I needed. I'm not a Hot Rodder Just an old Greaser working on his truck. Thought I could get some help from fellas that
Like working on truck. I alway new Greasers to be nice people
and always friendly and helpful. But I guess that was the old days.
Use to be a family kinda like bikers are. maybe FLAT and BLACK just
doesn't Get It Or he thinks this is his space to watch dog.He should help his neighbor from Texas BUSH He needs it.

[peashooter]

No kits 1993

[DoubleUc]

LMAO...right on. The good guys are still out here.
Keep an eye on your seperator plate and watch out for some wear. You might see some dimpling on one hole just use a ball pinn hammer on it if you see this. Gils shift kit has you drill out alot of holes to make bigger if you got that one. Post again if we can help you!

[peashooter]

OK...peashooter...I'm about helping so forget about the thread pickup and lets see if we can do that...
You want to know where the VB check balls go, right? What year is the (4L60E)trans? Have you put a shift kit in it? What kind is it if you have?

No Kit 1993 Sure thing Thanks

[peashooter]

Ok the night mare begins. I have the cart before the horse.I got as far as that small yellow snap ring. output shaft to input carrier snap ring
as it's known to the pro's cant get the shaft up far enough to see the groove. I think the low/rev piston may not be seated down far enough? I ran a bolt and washer to the piston spring assem out the back and through a steel plate then compressed it with impact wrench but still not enough clearance ???Boy I hate being stupid. But we have all been there. he he

[DoubleUc]

Air check the Low/Reverse piston for leaks. A rubber tip on airgun and just start hitting holes down there...you will know when you get it. This will tell you if its seated, if it is you will hear a thump noise and actually see the piston working, if not, well you hear a hiss sound of sorts.
I'm not a big fan of the impact wrench anywhere near assembly time usage! It would be wise just to use a wrench of choice! Good Luck!

[DoubleUc]

Sorry peashooter...I'm thinking you are going back together...you are still pulling the guts out right? If thats the case LIGHTLY (rubber mallet please) tap the output shaft toward the tranny...that should be the least of your worries!

[Kool Kat]

Keep the sawzall away from Tyler!!!!

[peashooter]

Sorry peashooter...I'm thinking you are going back together...you are still pulling the guts out right? If thats the case LIGHTLY (rubber mallet please) tap the output shaft toward the tranny...that should be the least of your worries!

Oh Boy I have had this thing down to that piston five times thinking
I put something in wrong but no. I never took the piston out only broke down the tranny to put in some low/rev steels and clutches.
but I cant seem to get the groove to show to put in that snap ring.

[DoubleUc]

Most likely its your stack up...check to make sure you don't have an extra steel or clutches making your stack up bigger...most likely that is your problem, just pull them back out and count. You should end the stack up with a clutch too. Snap ring should fit.

[peashooter]

Tanks for the tip but that I got correct with a mic. @ 1.200 to 1.240
Took the tranny by the shop the guy is always willing to help a little.
I told him I had it in the pickup and could not get the clip in. He took a look and peabrain I mean peashooter had the washer under the roller instead of on top. reversing this did the trick. And I got some good info "tips from him as well. I'm getting to old for this stuff.
Ha you guy's have been great. thanks Peashooter