We'll need a little more information here, but I'd first start with checking your throttle cables, especially if your Cruise cable was frayed.
What year Contour do you have?
What type of Engine/Transmission?
Do you have Traction Control?
There is a TSB out for the early Contours with Traction Control. My throttle cable frayed and would stick on my 95 with TC.
Does your car rev high from an idle, or is it a sticking throttle cable issue? When mine would stick, I could come to a stop, and it would still be reving around 4000 RPM.
