2001 Hyundai Santa Fe 6 cyl Two Wheel Drive Automatic 88000 miles
Encountered hard shift (wife) and check engine light. Code indicated output speed sensor and that was replaced. Initial test run OK, but wife said hard shift came again and check engine light came on. Performed "fuzzy" re-flash on TCM by touching both battery cables for 15+ sec. And check engine light went away. Test run fine for first couple of miles, but after running 40+ mph in cruise for a couple of miles, had hard shift down to third gear and engine light returned. Once this hard shift happens, the trans will not go into OD again unless the engine has been shut down and restarted. Hard shift is now exclusively from OD to third gear. Have not had car over 50 mpg or on highway; all in town driving.
No other fault codes beyond speed sensor.
have the same problem?
Tuesday, April 20th, 2010 AT 1:45 PM