
Hello everyone, my name is Rob, a Google search indicates that you guys know your s**t, especially of the FORD variety! Hopefully you can lend some insight into the following problem.
I recently acquired a
1999 Ford Expedition XLT - 5.4 Triton - AWD - w/110K miles.
I've had it for about a year, no problems - except for the factory alarm going off while driving, (lights flashing, horn blowing, etc.) but that is/was the only problem.
Today, the battery was dead, so i jumped the truck with another car, it didn't start right away (even with the other car revving), left it alone for a few minutes, and then it started.
Now, the problem , truck now doesn't shift, stays in one gear - while driving at around 10MPH, the speedometer indicates that the truck is doing about 80MPH (the Tach stays around the 1.5-2.5 range.)
When i make left/right turns the truck feels like it's going to stall, and hesitates throughout the turn, there is a (very low volume) whining-type sound coming from under the hood, which goes up in pitch, the faster you travel. It almost feels like it's stuck in 4Low (while the switch is on AWD), however, when i tried to toggle the switch from AWD to 4H and the 4L, it appears that it does nothing, i.e., the 4X4 is not operating. No 4X4 lights go on on the dashboard (when i operate the switch) either.
There are no warning lights indicating any problems on the dashboard, everything else works.
My mechanical knowledge is very limited, but it seems that something happened to the computer, are there any tricks, or perhaps anything that i should look into, before taking it to a mechanic?
Thank you,
Rob