If the overdrive switch is turned off then the car will not go into overdrive. As it is not in overdrive, then it will not downshift out of overdrive as it normally would. It also will not shift to 3rd gear above a certain factory preset speed. Turn th overdrive on and see if it operates normally.
accelerate above the speed limit
Overdrive is controlled by the shift solenoid, and vacuum modulator. the kick down you refer to is not overdrive but passing gear and should also be controlled by vacuum.
Overdrive is used when cruising at highway speeds to improve gas mileage. What you may be feeling instead is the car going into passing gear when you hit the accelerator very hard. This is not the same as overdrive.
Not at all. Overdrive is for high rpm acceleration like quick on ramps and passing, or even going up a hill. In snow u want a lower rpm so u don't lose traction.
Change the fuel filter and have the cat convertor checked out
No. Photons have no rest mass and therefore can never accelerate or decelerate; they always travel at precisely the speed of light in the medium they're passing through.
Yes it is acceptable to momentarily accelerate over the speed limit tp get around a vehicle moving slower than the posted speed limit but you must return to the speed limit after passing.
If you fart ten times in a row it will automatically pass down:)
Turn on your turn signal and turn the steering wheel a little bit , if your overtaking someone or passing accelerate a little bit.
The power button is a form of overdrive. It drops the transmission one gear down. Handy for passing or entering the freeway when you need a little more power and acceleration.
A spaceshit passing does not break ozone. It replenishes automatically unless altered chemically.
That's when the air flow passing through the radiator is least, thus the fan runs.