Tranny problems

[duncanrome]

Ok here goes I have a 2000 f250 with banks 3 position 5 inch exh cold air diesel cool down timer ok the problem is I have had this trans built I mean every part brand new pump everything new solinoids new fliple switch but the problem is I can drive the truck for awhile and it will shift perfect then all a sudden I have to run the rpms up to get it to shift and when it does it's like it shift's to drive and overdrive instantly then it will stay in overdrive for awhile until any resitance in the road and it will down shift to not drive still in overdrive I can push the overdrive switch and it will shift down yet the rpm are running up. I am lost and so is my tranny guy oh I also have a new triple clutch lockup conveter please help I am going crazy and need my truck.

[RadarRider]

Originally Posted by duncanrome

Ok here goes I have a 2000 f250 with banks 3 position 5 inch exh cold air diesel cool down timer ok the problem is I have had this trans built I mean every part brand new pump everything new solinoids new fliple switch but the problem is I can drive the truck for awhile and it will shift perfect then all a sudden I have to run the rpms up to get it to shift and when it does it's like it shift's to drive and overdrive instantly then it will stay in overdrive for awhile until any resitance in the road and it will down shift to not drive still in overdrive I can push the overdrive switch and it will shift down yet the rpm are running up. I am lost and so is my tranny guy oh I also have a new triple clutch lockup conveter please help I am going crazy and need my truck.

Is your OD light flashing?

[duncanrome]

the overdrive button is not flashing

[outlawdiesel]

did you use the old trans cooler?it sounds like something is cloged.

[duncanrome]

new trans cooler new trans every thing in trans new electronics new converter I am just stumped I have ordered a bd diesel trans control unit to see it it will help with the shift