My 2001 Tribute occassionally has the "OD off" light come on the dash, unrelated to any pushing of the OD off button.

What does this mean to me? I had a tranny flush and it came on once after but then seemed to stop.

What are the shift points for this tranny? If the light comes on again, how should I test to see if it is going into fourth?>

 

Never ever get a tranny flush, these do MUCH more harm than good and are NOT recommended by any manufacturer that I know of. Read this short article about the CD4E GEARS Magazine - January 2000

This might also be of relevance: 626 Transmission FAQ
Its for the 626 but they used the same transmission as well.

 

This topic comes up frequently. Most people are not aware of definitions of terms.

"Flush" could mean a procedure where a fluid with solvents and or detergents is used to clean the interior of a transmission. This kind of flush is a no-no. Globs of varnish will be removed from the interior surfaces and will clog tiny holes and passages. There is no chance a filter will catch all of these and the CD4E does not even have a filter!

"Flush" is also used to denote a procedure where new ATF is pumped through the transmission and converter while the old fluid is collected. This accomplishes a complete replacement of the ATF. If this has been done for the life of the transmission there should be no problem with this. However, if the transmission has varnish build up it could cause the same problem as a solvent flush since the new fluid is rich on fresh detergents.

"Changing ATF" refers to draining the ATF from the pan and refilling the transmission with fresh ATF. This results in a partial replacement because a lot of the old fluid remains in the converter. Changing intervals should be 15000 miles vs. 30000 miles for the complete exchange.

What kind of "flushing" has been done to your transmission?