I've took upon myself the task of rebuilding my 4L60e automatic transmission, for the first time ever messing with an automatic. I've changed out clutches and pressure plates in manuals, but that's as far as it goes. However, I am determined to accomplishing this tremendous feat. Here's the problem; three of us took the tranny out and disassembled it and now I am left alone to reassemble it. I know many of you, as you read this, are reaching for some tissues to dry your eyes for the terrible demise that I'm in. So if any feel moved to provide as much information, especially pictorial diagrams of the tranny, parts, and order of assembly for a 4L60e automatic transmission, you will have my undying appreciation. Sincerely, Thomas

Question edited for clarity. A set of random letters and numbers doesn't work.
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Help here. It is a known issue after rebuilds.

https://www.google.com/search?q=4l60e+no+gears+after+rebuild

It may physically fit but electronics are updated. Seek dealer advice.

How To Rebuild A 4L60E Automatic Transmission - YouTube

? 13:19
https://www.youtube.com/watch?v=JpmJtuVrdWk
Mar 16, 2011 - Uploaded by Nick Stageberg
How To Rebuild A 4L60E Automatic Transmission ... Also here is a link to some common break/fixes that may require a rebuild:... GMC canyon, envoy, safari savana, sierra Sonoma, Yukon, ....Great video, my 96 sierra 4x4 when shifting into high gear motor races as if nothing is there........................always ...

30 Common 4L60E Transmission Problems & Repair ...

www.twincharlotte.com/transmission-repair.../30-Common-4L60E-Trans...

Mar 18, 2011 - The 4L60-E is an automatic shift, four-speed overdrive, longitudinally...... 4l60e 2002 gmc 4x4 was not driven for 1 year,will not shift into 3rd or ... I have a 2005 GMC envoy 4x4 6 Cylinder I assume it is a 460LE Transmission.

Time to rebuild.


Mai

if the transmission fluid is brown or it hasn't been changed then I would flush it

Here is what I have listed, more than likely you have the 4L60E which is 5qts.
CAPACITIES
Engine, with filter..........6.0 quarts[1]
Cooling System, Initial Fill..........17.0 quarts
AMSOIL Antifreeze and Engine Coolant
Cooling System, W/ Rear Heat Initial Fill..........19.0 quarts
AMSOIL Antifreeze and Engine Coolant
Automatic Transmission, 4L80E Initial Fill..........7.7 quarts[2]
Automatic Transmission, 4L85E Initial Fill..........7.7 quarts[2]
Automatic Transmission, 4L60E Initial Fill..........5.0 quarts[2]
Automatic Transmission, Total Fill
4 speed 4L60E..........11.0 quarts
4 speed 4L80E..........14.0 quarts

Dexron VI is the way to go. As for a filter the choice is yours..Hope this helps Tim

your transmission is bad, start looking for one. Good luck

Rebuilding automatic transmissions properly requires a lot of time, skill, training and experience to get it right. A beginner will have little success in making a lasting repair. I have known of experienced professionals fail to fix them properly. An exchange transmission would be the best option, although more expensive, as you should get a warranty and will be out of action for only a short time.

Take it to a transmission shop that has a Tech 2 scanner. The tech 2 scanner will not only scan the transmission but can also recalibrate the shift points. Other reason to why it wont shift under WOT it low transmission fluid pressure so check the fluid level and have a pressure test done on the line.
The 4L60E is a great transmission but there are some things that don't work well with them like some shift kits. The ECM is program the shift points which get's messed up if done wrong. best upgrade on the 4L60E was to swap out the servos for corvette servos or after market performance one's all for under $100.00 and in most case better then a after market shift kit.
Good luck and hope this help. take care not to burn up the transmission.

The transmission is a 4L60E. The best bet is to see how much a transmission shop would to be rebuild it. Rebuilding a transmission is a daunting task and professionalism is something you need for transmissions. I have worked on many cars trucks and semis and a transmission is one of those things you have to bear a brunt of getting done by someone else. If you do not need your blazer for every day driving rebuilding a transmission is a good thing to learn just remember to take pictures of everything and mark and lable and bag and tag everything. I wish you the best of luck!

There are a couple sights where I found GREAT info about 4L60E repair!! I'm new to tranny's but because of these sights, my first total rebuild is almost done!!

http://www.compnine.com/largeimg/940419GM04-418.gif is a blow-up schematic of the valve bodies

http://forums.minnesotamud.com/showthread.php?t=3032 is a step-by-step (text and pics) of a total tranny break-down!!

Hope it helps. Let me know!

Barney
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