have you put a load (or done something simular to what you did in 4wd in 2wd) on it since you put in the new torque converter and valve body? not saying it is it, just wanting to eliminate all the 2wd possiblities...


the more i think about it the more i don't think it is in the t-case. the BW1354 is a chain driven t-case, so if it wouldn't go with a heavy load on it, it also wouldn't go without a load....there isn't anything inside the t-case to "slip"......if the chain broke or a gear broke, then it wouldn't do anything...


7A029 in the lower right corner is the chain...

 

yea I would think if it was in the case you'd hear a noise also... very weird...

 

A bad injector would make it idle rough, or vibrate at speed.

Not to labor this but a bad O2 sensor doesn't always throw a code. They generate a range of voltage (0 - 1.5v). When the coating on the tip is contaminated, it won't produce "enough" volts, causing it to run rich.

 

which its not doing either of those 100% perfect on the road in 2wd.