Will speed sensor not let 97 dodge caravan change into higher gears?
If you have the 3-speed transmission, it is likely that the
speed sensor can make it difficult to shift but in my experience,
if you hold down the accelerator it can force the transmission to
shift up. Of course this is dangerous and probably causes premature
wear on the transmission, but I had no choice back when I had speed
sensor problems. The best option is to replace the speed sensor as
soon as possible if of course that is the problem, which will set
off a trouble code in the PCM. If there is no speed sensor trouble
code then you may have a problem with your transmission altogether
and may need to have it looked at by a transmission shop.