I have a 98 ford contour gl 2.0, automatic trans. the transmission wont shift between 1st and 2nd gear by itself. I have to get the rpm's up and I let off the gas just like i was shifting it manualy. and also the overdrive wont work the o/d light flasheswhen I get up to 40-45 mph. any sugestions!!!! thanks in advance , mrtjknapp

speed sensor

speed sensor
didnt work , any other ideas

wow, weird. Mine did the exact same thing when mine went. is the CEL on?

wow, weird. Mine did the exact same thing when mine went. is the CEL on?
what is a CEL ? Im new at repairing cars

check engine light

check engine light
no my cel is not on but to o/d light comes on when i get up to about 40mph