Torque Converter question.............

[Tbar]

I drove a 2003 7.3 PSD Friday and was impressed with the way the torque converter felt. This was a stock truck.

The forward motion in relation to engine speed was much better than my 99.5.

I think my truck has always driven this way which is why I put the T/C lock up switch on it almost 200k ago.

Did these trucks come with different T/C's in them?


Tbar

 

[Zookie400]

could it have been different axle ratios?

 

[JLDickmon]

it would not surprise me if they changed the stall speed or something over the years to either reduce emissions or improve fuel economy or drive ability

 

[trackspeeder]

Most likely its the programing. Ford changed the shift programs through the years.

 

[dmd]

Programming is way different, 2003 is way better. If you get a chip, make sure
it has the 2003 programming. My 2000 is way different with the chip set to stock
(2003 programming) and with the chip taken out.

 

[Bigdog]

well i found out after my auto went south and had it rebuilt that in Australia we have 2 or 3 types of torque converter all with low and high stall , i got a good one gets off the line at about 1500 rpm with 3.7 diff