Urgent trans issue!
#21
DINOSAURUS BOOSTUS
Expert Gearhead
If you aren't holding it too high, there'* no harm in manually shifting. Most don't understand how to shift and keep rpm reasonable...that'* when it'* bad.
Dan.. you got me thinking on the accumulator. There is a 1-2 and 2-3. If he'* not getting second, then maybe it'* the 1-2.
Dan.. you got me thinking on the accumulator. There is a 1-2 and 2-3. If he'* not getting second, then maybe it'* the 1-2.
#22
Senior Member
Posts like a Northstar
Thread Starter
Join Date: Apr 2010
Posts: 518
Likes: 0
Received 0 Likes
on
0 Posts
I took a video with me semi-manual shifting and showing the rpms and you should be able to hear the motor, but I dont know how to upload videos. Also I know nothing about trans' at this point so the 1-2 2-3 and accumulators i'm lost, I looked over the how to for the filter but thats as far as I know trans wise.
#23
Retired Senior Admin
Expert Gearhead
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Likes: 0
Received 28 Likes
on
24 Posts
Possible. I was going over the service manual looking at the diagrams and tables. If a solenoid was bad he would loose 2 gears, not just one. The only thing I could see that would prevent 3rd, other then total clutch failure is loss of shift pressure, and that leaves the 2-3 piston. If it was stuck, the shift would be harsh, if the O ring is gone, then shift pressure would never go up.
#24
DINOSAURUS BOOSTUS
Expert Gearhead
Search on Danthurs and how to put in a shift kit. While it'* for the 4T60, the basics of taking apart the accumulator should be pretty close. You'd be looking for a bad seal on the piston under the cover where it'* labeled 1-2. Kinda nice that they put 1-2 and 2-3 on the cover over the accumulator for that gear.
#25
Retired Senior Admin
Expert Gearhead
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Likes: 0
Received 28 Likes
on
24 Posts
You will need to upload the video to a place like photobuckt and then post the link here.
Go to techinfo/performance and look for installing a shift kit. That is where you will find the information about the accumulator.
Go to techinfo/performance and look for installing a shift kit. That is where you will find the information about the accumulator.
#26
Retired Senior Admin
Expert Gearhead
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Likes: 0
Received 28 Likes
on
24 Posts
Search on Danthurs and how to put in a shift kit. While it'* for the 4T60, the basics of taking apart the accumulator should be pretty close. You'd be looking for a bad seal on the piston under the cover where it'* labeled 1-2. Kinda nice that they put 1-2 and 2-3 on the cover over the accumulator for that gear.
#28
Retired Senior Admin
Expert Gearhead
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Likes: 0
Received 28 Likes
on
24 Posts
You can make your own for a few buck.
https://www.gmforum.com/performance-137/making-installing-shift-kit-4t60-e-transmission-287906/
https://www.gmforum.com/performance-137/making-installing-shift-kit-4t60-e-transmission-287906/
#30
Retired Senior Admin
Expert Gearhead
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Likes: 0
Received 28 Likes
on
24 Posts
Be sure to inspect the O rings closely, If you see any damage, a split, a nick, anything, then it will need to be replaced. That O ring is the seal, and it needs to seal good or it wont work right.