TC lockup - Page 2 - Fuelly Forums

Click here to see important news regarding the aCar App

Reply
 
Thread Tools Display Modes
 
Old 10-08-2008, 06:16 AM   #11
Registered Member
 
theholycow's Avatar
 
Join Date: Apr 2008
Posts: 6,624
Country: United States
Send a message via ICQ to theholycow Send a message via AIM to theholycow Send a message via MSN to theholycow Send a message via Yahoo to theholycow
Another thing to keep in mind is that your TC lock signal may not be a simple steady voltage applied, it may be a PWM signal (as in my 2002 GMC). It's important to find that out before just sending power to the TC lock wire.
__________________

__________________
This sig may return, some day.
theholycow is offline   Reply With Quote
Old 10-08-2008, 07:48 AM   #12
Registered Member
 
Join Date: Nov 2007
Posts: 1,111
Country: United States
Send a message via AIM to dkjones96
Quote:
Originally Posted by Pete View Post
Keep in mind the TC lock up clutch is relatively small compared to a manual shift car clutch and the auto trans is designed to unlock the clutch anytime the torque demand from the driver is likely to exceed the limits of the clutch.
This is to give a longer life to the clutch unit.

Pete.
That depends on a lot of stuff(car make for example).

The Aisin transmission in the Tracker is an A44DE (VERY closely related to the A43DE used in the 84-86 Cressidas and Supras) and the A43DE in the Toyotas (along with the A340E in my 88 Cressida) would lock under WOT operation. First gear was TC lock-free as the Tracker is but in second gear at WOT ~4400(peak torque) you could hear and see the engine speed fall a few hundred rpm as the converter locked.

In the Tracker, the same transmission make but a different brand and slightly different model, the TC won't lock under heavy load no matter what the gear. I was under the impression though that this is done because it revs the engine up a little higher without completely changing out of gear.
__________________

__________________
- Kyle
dkjones96 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Location awareness! moxfyre Fuelly Web Support and Community News 11 03-16-2011 12:36 AM
5 wire o2 sensor blues FormulaTwo General Fuel Topics 31 10-25-2008 01:28 PM
Chart suggestions jeadly Fuelly Web Support and Community News 0 08-08-2008 02:46 AM
Sign me up for this tomauto General Discussion (Off-Topic) 0 09-04-2006 10:47 AM
Howdy from Louisville, Kentucky. DirtyOldTown Introduce Yourself - New member Welcome 25 07-06-2006 03:43 PM

» Fuelly iOS Apps
Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 04:02 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.