Jump to content

Torque converter lockup


Recommended Posts

Posted
I would recommend buying the proper replacement.. those 'crisper' shifts can be really hard on the tranny, esp. reverse to first, and when it downshifts into first. My car shifts pretty good as it is, and my best 1/4 mile time I beleive was with the modulator plugged in.

 

 

well, if it cause that many problems, GM wouldn't have made an adjustable one availiable.... it's there mainly for the people who want a really really uber smooth ride...

Posted
I would recommend buying the proper replacement.. those 'crisper' shifts can be really hard on the tranny, esp. reverse to first, and when it downshifts into first. My car shifts pretty good as it is, and my best 1/4 mile time I beleive was with the modulator plugged in.

 

When do you ever shift from 1st to Reverse? Neutral is always in the way. And, no they wont tear up the tranny

Posted

cause when you PLUG the line that's like the adjustable modulator being on its highest setting! and over time THAT is bad for the trans. You adjust it to the point where shifts are firm, but going to reverse doesnt slam into gear. It sure as shit isnt bad for the transmission because GM PUTS IT on their trannys THEMSELVES!!! Like Lumina police cars, hell my mom's '95 Cutlass has it stock! Adjust it all youi want and have a nice f-n day

Posted
cause when you PLUG the line that's like the adjustable modulator being on its highest setting! and over time THAT is bad for the trans. You adjust it to the point where shifts are firm, but going to reverse doesnt slam into gear. It sure as shit isnt bad for the transmission because GM PUTS IT on their trannys THEMSELVES!!! Like Lumina police cars, hell my mom's '95 Cutlass has it stock! Adjust it all youi want and have a nice f-n day

 

Yuppers!!

Posted

i know this is probably old and already taken care of, but my 2cents and theorys and experiences.. means jack shit but here we go..

 

when the motor is cold the 4t60e willnot go into overdrive until the tranny/motor is warmed up to some minimum operation degree. ~100deg? probably normal right?

not sure where im going with this cuz i dont know the 4t60e very well at all.

anyone help me here with this? a possible reason the torque conveter not locking in or shifting to 4th the ecu is not registerting an operations temp... just a hypothosis.

Posted
i know this is probably old and already taken care of, but my 2cents and theorys and experiences.. means jack shit but here we go..

 

when the motor is cold the 4t60e willnot go into overdrive until the tranny/motor is warmed up to some minimum operation degree. ~100deg? probably normal right?

not sure where im going with this cuz i dont know the 4t60e very well at all.

anyone help me here with this? a possible reason the torque conveter not locking in or shifting to 4th the ecu is not registerting an operations temp... just a hypothosis.

 

i don't know if you read my post from before so here goes again!:

when my thermostat was shot my car would either not shift into overdrive or the torque converter wouldn't lock up. I agree with your theory.

Posted

Yes the torque converter will not lock up until a certian engine temp, aroudn 120-130*

Posted

pluging the line could be bad i would try to get the right part to give you firmer shifts

 

BUT hard harsh shifts are better for the trans than soft mooshy shifts

 

the harder the shift the longer the clutch packs will last there will be little to no clutch pack slipage there for the friction material lasts longer

 

hard parts lasting is a whole other story and i wont get into that

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...