Hi guys!
Sorry about leaving out some info the first time...yes the car is an automatic. I have no reason to believe that the shifter knob has ever been removed. And no, the speedometer was not acting up or doing anything unusual that I could see. Does that mean that it is not a VSS problem if the speedomoter is behaving normally? Or could it just be the beginning of a VSS problem?
Part two of the story began Friday morning when I drove to my Ford dealer. This time it did not jerk in and out of 4th gear (overdrive) because it never got there in the first place. It only went up to 3rd gear. I dropped it off, explained to the guy as best I could and went on my way. 6 hours later they called me and said they could not reproduce the problem and that everything was runnning fine. They also said it might be a grounding problem, but without reproducing it they couldn't really tell. I thought maybe they were checking the wrong car, but when I got in and drove it home it did run fine, using all 4 gears. I am so confused...Any thoughts on what this means? Is there a next step?
Once again, I am really grateful for any ideas!
Thanks,
Jennifer