This might be a dumb question but what is converter lock up and how do I tell?

 

There were some differences in the sensors, and how they mounted as well. I do not know if just changing the retainer clip for them is adequate to the task.... if you used the 98 version, then chances are, the pressure sensor (I think) isn't seated completely, so, gets erroneous readings....

I can't find part numbers, but, apparently, the valve body DID change from 99 to 00..... I know ya don't wanna hear it... but, you may have to dive in there again, and see if the sensor mounts are different..... I just don't know.

 

Our transmission have a locking torque converter. Provides for a direct mechanical connection from engine to trans input shaft. (no slipping, better gas mileage.) When TCC locks/unlocks, engine RPM should change by about 200 or so RPM.

 

I think HeyYou is onto something with that sensor not being seated all the way... And a function trans will shift 1-2, 2-3, 3-4, torque converter lock-up.
That's last "shift" into torque converter lock-up will happen right after 3-4, and will only drop RPM by about 200 like stated.

 

I get TCC, then O/D...... there is a little drop, followed by a BIG drop.... Of course, mines a 96, so, lord only knows what changed after that.

 

Ok thanks for all the imput. I guess tomorrow I'll tear into it again and switch out the base that the sensors sit in or make sure they are seated correctly.

 

I forgot to add that if I was to take a guess, I'd say that there was no small drop in rpms after going into 4th, so not sure if it's lock up or not.

 

And I keep finding conflicting information..... one site shows the valve bodies from 97-2005....... It's gotta be that retainer clip.

Do you have the 01 service manual yet? You can grab one from here.

 

Im downloading now. Im sure I pushed that sensor all the way in.

 

Dang that was a big download to scan on my phone.