View Full Version : Torque converter

01-11-2014, 07:26 PM
Ok folks, another newbie question. I think my tc is not locking up. The reason I say this is because I think my fuel mileage has fell off and engine appears to be running higher rpm. I have not had this thing long so I might be way off here.
I am thinking that at steady speed, let's say 60 mph, fully up to temp, in drive, I should be able to keep right foot on accelerator and tap brake with left foot and see an rpm jump. Not a downshift, but the converter unlocking then locking back in. I'm from old school. This may not apply. Correct me if wrong.
I'm seeing about 2200-2400 rpm Is this about right.
Last but not least I would like to contact dr . A. Could someone advise me how to

Randy in East Tennessee

2008 Freightliner 170 642 cargo 182,000