Ut-oh did I blow my 4L60E tranny?Help
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From: Shelby Twp. Mich
UH-OH did I blow my 4L60E tranny?Help On my way home I jumped on it from a 45 role,and let off the gas and all of a sudden it wouldnt go into Over drive ,It seems ok normal driving In(D)except when taking off it takes a while to shift into 2nd light excelleration like 3200 rpms ,seems to go into 3rd ok and veter locks up.But when I am rolling 40 45mph and nail it ,its like I am in Neutrol?I hit the rev lim
I checked the fluid ,it is full and not burnt ,no unusual noises either.I have a Built 4L60e with a vacuum modulator ,I checked the vacuum line and all seems intact?I also have a Yank SS4000 Verter.Please Help
Scott
I checked the fluid ,it is full and not burnt ,no unusual noises either.I have a Built 4L60e with a vacuum modulator ,I checked the vacuum line and all seems intact?I also have a Yank SS4000 Verter.Please HelpScott
Last edited by Pro Mouse; Sep 1, 2004 at 09:43 PM.
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From: Shelby Twp. Mich
Originally Posted by mdblackz28
i had a similar problem...probably a solenoid, but not positive
Originally Posted by Pro Mouse
Nope it is the bandsLooks like my tuner will be putting TM back in....
Looks like my tuner will be putting TM back in....I have a built 4L60 as well, with 3500 converter, and one day while tuning, I completely removed TM and after about 3 runs I was like WTF? Same exact thing you describe. Kevlar band SNAPPED right at the rivets!!!!
And my tranny is also vacuum modulated!
Hmmmm
4l60.com sent me a new band for free and put that in and put TM back to normal and its been fine since, about a month now no probs...
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From: Shelby Twp. Mich
Originally Posted by SSnakekiller
Wait this didnt happen right after you took TM off did it?
I have a built 4L60 as well, with 3500 converter, and one day while tuning, I completely removed TM and after about 3 runs I was like WTF? Same exact thing you describe. Kevlar band SNAPPED right at the rivets!!!!
And my tranny is also vacuum modulated!
Hmmmm
4l60.com sent me a new band for free and put that in and put TM back to normal and its been fine since, about a month now no probs...
I have a built 4L60 as well, with 3500 converter, and one day while tuning, I completely removed TM and after about 3 runs I was like WTF? Same exact thing you describe. Kevlar band SNAPPED right at the rivets!!!!
And my tranny is also vacuum modulated!
Hmmmm
4l60.com sent me a new band for free and put that in and put TM back to normal and its been fine since, about a month now no probs...
My Trans guy is got it apart found it was the Kevler bands, and should have me back on the road tomorrow,I will not be jumping on it until my TM is back in 
The thing is that my Trans guy built my tranny back in Oct 2001 and I have had no issues until the TM was removed!So that is enough for me ,I cant keep doing this or I will be broke in no time.....Scott
Last edited by Pro Mouse; Sep 2, 2004 at 10:29 PM. Reason: Left out info
Wow, this is very interesting. Did you burn or break your band? I think you broke your 2-4 band like me?????????????
This happened to both of us, with built trannys, soon after the TM was removed.....
btw how much power is going through yours, ~ 415?? Mine is boosted, about 600Tq, which I know is high for a 4L60, no matter how built it is! But the fact remains, there is something that TM is doing to hold it together?
This happened to both of us, with built trannys, soon after the TM was removed.....
btw how much power is going through yours, ~ 415?? Mine is boosted, about 600Tq, which I know is high for a 4L60, no matter how built it is! But the fact remains, there is something that TM is doing to hold it together?
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From: Shelby Twp. Mich
[QUOTE=SSnakekiller]Wow, this is very interesting. Did you burn or break your band? I think you broke your 2-4 band like me?????????????
This happened to both of us, with built trannys, soon after the TM was removed.....
btw how much power is going through yours, ~ 415?? Mine is boosted, about 600Tq, which I know is high for a 4L60, no matter how built it is! But the fact remains, there is something that TM is doing to hold it together?[/QUOTE
Yep,Thats what I did alright!Broke the tabs right off,what is going thru it is in my sig....
This happened to both of us, with built trannys, soon after the TM was removed.....
btw how much power is going through yours, ~ 415?? Mine is boosted, about 600Tq, which I know is high for a 4L60, no matter how built it is! But the fact remains, there is something that TM is doing to hold it together?[/QUOTE
Yep,Thats what I did alright!Broke the tabs right off,what is going thru it is in my sig....
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From: Shelby Twp. Mich
Well my Trans Guy fixed it free for me,But Guess What?I went down into passing gear ,and That SOB did it again,4L60E is a Piece of ****!!!!! That Mother is History!Turbo 400 Here I come....
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From: Shelby Twp. Mich
Yes,that could be true.How much power would this trans take?Power is in my sig on a Mustang dyno ,which is roughly around 450 rwhp and probably a little over 400 rwtq on a dynojet...
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From: Shelby Twp. Mich
Originally Posted by TeamTripp
They can handle much more than that. Billet Servos and blocked off accumulators are one of the biggest band busters.
Thanks!!!!
Scott
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From: Mooresville, NC
I can't imagine what bolts he was talking about. The flywheel is bolted to the torque converter. Sometimes people put washers between the flywheel and converter to make sure it makes contact with the pump rotor, but I don't see that changing how it shifts. I think there was either a mis-communication, or something is being left out...