Automatic transmission. Hey Scotty, my Ford Explorer has a hard shift between 20-25 mph. Do you think ordering a replacement valve body from shift rite might fix the problem. Other than this the car seems to be running perfectly fine other than a noticeable oil leak which I assume to be the rear main seal. No timing chain rattle heard so far, usually associated with this engine (have yet to run compression test). Just finished replacing front end as well as shocks. No current lean codes.
2002 Ford Explorer Sport Trac RWD 149,500
Don't throw parts at the problem, that rarely yields a good result. Have the transmission diagnosed by a good independent mechanic with a professional-grade scan tool. (Not a dealer and not a chain shop.)
If that's the original transmission and fluid, a valve body isn't going to change much. The transmission itself is worn internally and may need a remanufactured replacement. Don't waste your money at corner "rebuild" joints.
it's not really worth gambling at that mileage. You could replace the valve body, and then next week something else falls apart.
