Can I repair it or better left to mechanic?
How do i repair transmission when code 1740 torque converter fault shows up? on 2001 Dodge Ram Van 2500
It's best left to a trans. shop because special tools are required and knowledge.
unless you are familar with transmission removal that will get you to the torque converter it may be best to leave this to the professionals. This job can be time consuming for a novice.
seek a free diag from aamco then shop prices