I'm driving a new-to-me Ford Explorer XLT, 2WD, 4.0 6-cyl, with
201,000 miles on it. Engine runs quite smoothly, and I've had no
problems with it until now.
The problem I'm having appears to be in the automatic transmission. It
started out as a knock in the engine/transmission when changing
between 1st & 2nd gear, both up and down.
Now, the transmission is taking too long to switch up to second gear.
(No problem down-shifting as of yet.) I have to be up around 3,000 RPM
for a couple of seconds before it changes, when before it would change
just after 2,000 RPM.
There's more to it. Today I hit the "OD Off" switch a couple of times
in case that made a difference. (OD is now back on.) Now the indicator
light is flashing after about 15 minutes of driving. The manual simply
indicates that I need to have my engine serviced, but there's got to
be more of an explanation.
Here's the big catch: I just checked the level of my transmission
fluid, and it appears to be like 1-2 inches above the regular level
indicator. Could having too much transmission fluid cause these
problems? If so, can I drain & refill to the proper level myself?
Thanks for your help.